Neoponera

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Neoponera
Neoponera villosa
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Ponerinae
Tribe: Ponerini
Alliance: Pachycondyla genus group
Genus: Neoponera
Emery, 1901
Type species
Formica villosa, now Neoponera villosa
Diversity
58 species
1 fossil species
(Species Checklist, Species by Country)

Pachycondyla villosa casent0104739 profile 1.jpg

Pachycondyla villosa casent0104739 dorsal 1.jpg

Specimen labels

Synonyms

Neoponera is a large (58 species) Neotropical genus, and is one of the most morphologically and behaviorally diverse of all ponerine genera. Many Neoponera are arboreal, and some species are specialized mass raiders of termites.

Identification

Schmidt and Shattuck (2014) - Neoponera is morphologically diverse. Its workers can be most readily identified by the following combination of characters: eyes relatively large and located at or near the midline of the head, metapleural gland orifice with a U-shaped posterior cuticular lip and lateral groove, arolia prominent, stridulitrum present on pretergite of A4, and hypopygium without a row of stout spines on either side of the sting. Many Neoponera also have distinct preocular carinae. Members of Neoponera are superficially most similar to Pachycondyla, Mayaponera, Mesoponera, and perhaps Megaponera. Neoponera workers differ most obviously from those of Pachycondyla in having prominent arolia, a stridulitrum on the pretergite of A4, and an unarmed hypopygium, and differ from those of Mayaponera in having slit-shaped propodeal spiracles and at most only a shallowly impressed metanotal groove. Neoponera species with round propodeal spiracles (some members of the N. emiliae group) can be separated from Mayaponera by the triangular-shaped metasternal processes (the processes are narrow and fang-like in Mayaponera). Both Mesoponera and Megaponera lack the complex metapleural gland orifice and prominent arolia of Neoponera.

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Keys including this Genus

 

Keys to Species in this Genus

Distribution

Neoponera is a strictly Neotropical genus and ranges from southern Texas and northern Mexico to northern Argentina and southern Brazil, with some species spanning virtually that entire range and others with more restricted distributions (Emery, 1911; Longino, 2013; Mackay & Mackay, 2010).

Distribution and Richness based on AntMaps

Species by Region

Number of species within biogeographic regions, along with the total number of species for each region.

Afrotropical Region Australasian Region Indo-Australian Region Malagasy Region Nearctic Region Neotropical Region Oriental Region Palaearctic Region
Species 0 0 0 0 1 58 0 0
Total Species 2840 1735 3042 932 835 4378 1740 2862

Biology

Schmidt and Shattuck (2014) - Neoponera is among the most behaviorally diverse of all ponerine genera. While relatively little is known about most members of the genus, certain species groups (especially the N. apicalis, N. laevigata, and N. villosa groups) have been heavily studied and have become model systems for studies of social and foraging behavior.

Phylogenetic evidence suggests that the ancestral Neoponera was an epigeic generalist predator and scavenger that foraged on the ground (see discussion of phylogenetic relationships within Neoponera, below). This is still apparently the pattern followed by those Neoponera species formerly placed in Mesoponera (such as Neoponera aenescens; Longino, 2013), as well as members of the N. apicalis species group (see below). From this ancestral condition two major deviations occurred: the ancestor of the N. laevigata group became a specialized mass raider of termites, while the ancestor of most members of Neoponera (s.s.) took the unusual step among ponerines of becoming arboreal.

Colonies of most Neoponera species are small, with typically fewer than 200 workers (e.g., Neoponera carinulata, Neoponera crenata, Neoponera lineaticeps, and Neoponera unidentata: Longino, 2013; N. apicalis species group: Fresneau, 1985; Fresneau & Dupuy, 1988; Düssmann et al., 1996; Gobin et al., 2003a; N. villosa species group: D’Ettorre et al., 2006). Exceptions include Neoponera goeldii, whose colonies can have at least 500 workers (Denis et al., 2007), the N. laevigata species group, which have colony sizes of up to at least 1,800 workers (Leal & Oliveira, 1995; Longino, 2013), and Neoponera luteola, which reportedly has colonies with tens or hundreds of thousands of workers (Yu & Davidson, 1997). An interesting behavior observed in some Neoponera species is the collection of drops of water or honeydew between the mandibles (e.g., in Neoponera apicalis: Fresneau & Dupuy, 1988). Neoponera villosa workers collect drops of liquid between their mandibles and act as social buckets by distributing the liquid to their nestmates (Déjean & Corbara, 1990b; Hölldobler & Wilson, 1990; Paul & Roces, 2003); some of the liquid may be used to control nest humidity (Hölldobler & Wilson, 1990). The ants use their mandibles as an external crop, to compensate for their lack of proper structures for internal liquid storage.

Among those Neoponera species that are terrestrial generalist predators and scavengers, only the members of the N. apicalis species group (Neoponera apicalis, Neoponera obscuricornis, and Neoponera verenae) have been heavily studied, though they are behaviorally quite derived and should not necessarily be considered typical of terrestrial generalist Neoponera. The N. apicalis species group was revised by Wild (2005), who provided a good summary of the habits of these species and noted that most published studies on Neoponera obscuricornis actually involved Neoponera verenae. Individual workers forage diurnally among leaf litter or on low vegetation for live and dead insects, vertebrate carcasses, fruit, and nectar sources, and look and behave similarly to pompilid wasps (Fresneau, 1985; Fresneau & Dupuy, 1988; Wild, 2002; Sujii et al., 2004; Longino, 2013). The foraging behavior of N. apicalis was studied in detail by Fresneau (1985), and modeled by Goss et al. (1989). Computer scientists have used models of N. apicalis foraging behavior to develop highly efficient search algorithms for complex problems in computer science (e.g. Monmarché et al., 2000; Wang & Ip, 2005; Admane et al., 2006; Luh & Lin, 2008). Duelli & Duelli-Klein (1976) found that workers of P. verenae can navigate using patterns of polarization of sunlight. Members of the N. apicalis species group construct small nests in rotting wood or soil (Traniello & Hölldobler, 1984; Fresneau & Dupuy, 1988; Pezon et al., 2005; Wild, 2002, 2005). Colonies emigrate frequently to new nest sites via tandem running (Fresneau, 1985; Pezon et al., 2005), which is mediated by a pheromone produced in the pygidial gland (studied in N. verenae: Traniello & Hölldobler, 1984).

The reproductive and social behaviors of the N. apicalis group have been extensively studied. Colonies are facultatively polygynous (N. apicalis: Fresneau & Dupuy, 1988; N. verenae: Traniello & Hölldobler, 1984) and may include intercaste queens which both mate and lay eggs (N. verenae: Düssman et al., 1996). Workers apparently are unable to mate and in queenright colonies will usually only lay trophic eggs (queens largely suppress worker reproduction), but in queenless nests workers will lay haploid eggs (Düssman et al., 1996; Dietemann & Peeters, 2000). Workers form dominance hierarchies in both queenright and queenless colonies, with the highest ranked individuals dominating the egg laying (Oliveira & Hölldobler, 1990, 1991; Düssman et al., 1996; Gobin et al., 2003a). Gobin et al. (2003a) found that such dominance interactions impose a significant energetic cost on the colony. Ovarian development in N. verenae workers and queens is related to their social status (Fresneau, 1984). The division of labor among N. apicalis workers is similar to that of most ants, with the exception that queens engage in colony work to an unusually high degree (Fresneau & Dupuy, 1988).

Several studies have examined the structure and secretions of glands in members of the N. apicalis species group, including the labial glands (N. verenae: Lommelen et al., 2002, 2003), Dufour’s and venom glands (N. apicalis: Schmidt et al., 1984; Lopez & Morgan, 1997; N. verenae: Morgan et al., 2003), metapleural gland (Hölldobler & Engel-Siegel, 1994), postpharyngeal gland and cuticular hydrocarbons (N. apicalis Soroker et al., 1998, 2003; Hefetz et al., 2001), and mandibular gland (N. verenae: Morgan et al., 1999). Giovannotti (1996) and Pavan et al. (1997) studied the structure and acoustics of the stridulatory organ in N. apicalis.

Species related to Neoponera apicalis were used to explore the role of acoustics in the speciation process. Ferreira et al. (2010) found that what had been considered to be a single species actually consisted of several distinct but cryptic species. A close examination of the stridulatory organ, both morphologically and acoustically, revealed that each of the identified morphs within N. apicalis possessed a distinct morphology and that all sympatric morphs made distinctive sounds. The differentiation observed in the stridulatory organs were the result of both worker size and intrinsic features of the organ and the distinct acoustic signals produced were the result of differences in both organ morphology and the behaviour of the ants. Ferreira et al. (2010) also found that divergence in acoustic signals only occurred among sympatric morphs and that in cases where morphs were allopatric their signals were similar. They conclude that the acoustic signals may be the result of inter-specific competitive interactions and that this character system is a useful tool in identifying and diagnosing complexes of closely related species.

Excepting the N. apicalis group, most species of Neoponera (s.s.) are arboreal, nesting in dead branches, stem internodes, among epiphytes, or in other suitable microhabitats in trees, and primarily foraging arboreally (e.g., Neoponera crenata: Wild, 2002; Longino, 2013; Neoponera foetida, Neoponera lineaticeps, Neoponera striatinodis, Neoponera theresiae, Neoponera unidentata: Longino, 2013; Neoponera goeldii: see below; Neoponera luteola: Davidson & Fisher, 1991; Yu & Davidson, 1997; Neoponera villosa: Déjean, 1990; Heinze et al., 1996; Déjean & Olmsted, 1997; Trunzer et al., 1999; Wild, 2002; D’Ettorre & Heinze, 2005; Longino, 2013; multiple species frequently collected in trees: Morini et al., 2006). In at least some cases, the relationships between arboreal Neoponera species and their host trees seem to be mutualistic, with the ants effectively defending their hosts from herbivores and the ants in return receiving nest sites and food from extrafloral nectaries and Müllerian bodies (e.g., N. luteola in Cecropia sp.: Davidson & Fisher, 1991; Yu & Davidson, 1997; Neoponera villosa in various host species: Déjean & Corbara, 1990a; Déjean et al., 1992; Longino, 2013).

Neoponera goeldii is an interesting arboreal species which colonizes disturbed areas, encourages the growth of certain epiphytes, and then nests in the resulting ant-gardens (Orivel & Déjean, 1999; Marini, 1999; Déjean et al., 2000; Orivel & Déjean, 2000; Denis et al., 2006a). A single monogynous colony will occupy several such gardens, clustered within a small area (Denis et al., 2006a). Workers occupying queenless nests form dominance hierarchies and have increased ovarian activity relative to those in queenright nests (Denis et al., 2006b, 2008). As with most or all Neoponera, workers of N. goeldii lack spermathecae and can only lay haploid eggs (Denis et al., 2007). Worker reproductive status is conveyed by their cuticular hydrocarbon profile (Denis et al., 2006b). N. goeldii workers are aggressive toward members of other colonies (Denis et al., 2006b). The hunting strategies employed by N. goeldii (a generalist predator) were reported by Orivel et al. (2000). Orivel et al. (2001) discovered that the venom of N. goeldii contains a suite of novel anti-bacterial and anti-insecticidal compounds, which they named ponericins.

Orivel & Déjean (2001) measured the toxicity of venom from several Neoponera species and found that their venom tended to be much more potent than that of measured Mayaponera, Brachyponera, Pseudoponera, Bothroponera, and Pachycondyla species. Their study suffered from a lack of phylogenetic consideration (they treated all tested species as congeners in Pachycondyla, with no underlying phylogeny), but they hypothesized that the high venom toxicity of some Neoponera species is an adaptation to hunting prey in an arboreal environment. Their hypothesis may very well be correct, but a phylogenetically-corrected analysis of their data would likely lack the power to find statistical significance.

The most thoroughly studied arboreal Neoponera species are Neoponera villosa and its close relative Neoponera inversa (Lucas et al., 2002), whose social behaviors have attracted a great deal of attention. Colonies of N. villosa and N. inversa are often co-founded by multiple queens, who organize themselves into dominance hierarchies and stay together even after the first workers eclose, in a rare example of stable primary polygyny (Trunzer et al., 1998; Kolmer & Heinze, 2000; Tentschert et al., 2001; Kolmer et al., 2002; D’Ettorre et al., 2005). In such polygynous colonies, subordinate queens forage and dominant queens stay in the nest and guard the brood, though they all lay eggs at the same rate. Queens of these species are unusual in that they often (or usually) mate with more than one male (Kolmer et al., 2002; Kellner et al., 2007). Colonies of N. villosa have from one to five queens, with two-queen colonies being the most common and the most stable (Trunzer et al., 1998; D’Ettorre et al., 2005), while single queen colonies are most common in N. inversa (D’Ettorre et al., 2006). Queens can distinguish between individual nestmate queens using chemical cues, and at least in N. inversa can remember them for at least 24 hours (D’Ettorre & Heinze, 2005; Dreier et al., 2007).

Queens of N. inversa suppress worker reproduction, as workers separated from the queens will begin to lay eggs (van Zweden et al., 2007). Workers police each other through aggression and by eating worker-derived eggs, which have a distinct chemical profile from queen-derived eggs (Heinze et al., 1996; D’Ettorre et al., 2004a, 2006; van Zweden et al., 2007). Some workers seem to be behaviorally specialized for policing (van Zweden et al., 2007). Workers of a species near N. inversa lack spermathecae and do not mate, but in orphaned colonies will form linear dominance hierarchies and begin laying haploid eggs (Heinze et al., 2002). Similarly, workers in orphaned colonies of N. villosa aggressively compete through biting and antennal boxing, forming linear dominance hierarchies in which dominant individuals lay eggs (Heinze et al., 1996; Trunzer et al., 1999). Workers in N. villosa can also lay trophic eggs (Mathias & Caetano, 1995a). The fertility and rank of both queens and workers is communicated by their cuticular hydrocarbon profiles (Tentschert et al., 2001; Heinze et al., 2003; D’Ettorre et al., 2004b). The role of cuticular hydrocarbons in nestmate recognition has been studied in N. villosa (Lucas et al., 2004). Foraging workers of N. villosa exhibit great flexibility in predatory behaviors depending on the type and status of prey encountered (Déjean et al., 1990; Déjean & Corbara, 1990a, 1998). Morphological and ultrastructural studies have examined N. villosa larval fat body cells (Zara et al., 2003), larvae (Zara & Caetano, 2001), oocytes (Mathias & Caetano, 1998; Caperucci & Mathias, 2006), corpora alata (Mathias & Caetano, 1995b), ovarioles (Mathias & Caetano, 1996), and mandibular glands (Duffield & Blum, 1973; Mathias et al., 1991). Trindl et al. (2004) isolated several microsatellite loci for N. inversa.

The three Neoponera species formerly placed in the genus Termitopone (Neoponera commutata, Neoponera laevigata and Neoponera marginata) are mass-raiding termite specialists. The prey preferences of these species correlate with their body size, as N. commutata (which is far larger than the other two species) preys exclusively on the very large termites of the genus Syntermes, while N. laevigata and N. marginata prey on a variety of smaller termites (Wheeler, 1936; Mill, 1984). Wheeler (1936) reported that workers of N. laevigata and N. marginata are dimorphic for size, but Longino (2013) states that workers of N. laevigata in Costa Rica are continuously polymorphic.

Raids by N. marginata occur infrequently (every two to three weeks) and may last for over 24 hours (Leal & Oliveira, 1995; Hölldobler et al., 1996a), and though the number of workers employed in raids of this species is unreported, raiding parties of N. laevigata contain hundreds of workers (Wheeler, 1936). N. marginata raids termite nests, while N. commutata raids only surface columns of Syntermes (Mill, 1984). Raids are often, but not always, initiated by scouts who locate potential prey and then return to their nest to recruit nestmates (Mill, 1982a, 1984). Colonies of N. marginata contain roughly 500 to 1,600 workers and usually multiple dealate queens (Leal & Oliveira, 1995; Hölldobler et al., 1996a), and colonies of N. laevigata are reported to be of roughly similar size (Longino, 2013). Nests are constructed in the ground under logs or leaf litter (Wheeler, 1936; Hölldobler & Traniello, 1980; Mill, 1984), and emigrations are infrequent, occurring on average every 150 days in N. marginata (Leal & Oliveira, 1995). In N. marginata, emigrations to new nest sites are initiated by scouts who recruit nestmates with a trail pheromone from their pygidial gland (Hölldobler & Traniello, 1980; Hölldobler et al., 1996a). Recruitment rates are enhanced by a rapid shaking motion of the body by the scouts or other workers (Hölldobler, 1999; Hölldobler et al., 1996a). Trail pheromones from the pygidial gland are also used during raids (Hölldobler et al., 1996a). Mill (1982b) described in detail an emigration by N. commutata. Blum (1966) reported that the hindgut was the source of trail pheromones in N. laevigata. Workers of N. marginata have specialized magnetic organs in their bodies (especially in their antennae) which provide them with a sense of direction and help orient them during emigrations (Acosta-Avalos et al., 1999, 2001; Wajnberg et al., 2000; Esquivel et al., 2004; Wajnberg et al., 2004). Colony reproduction in N. marginata occurs by budding or by either haplometrotic or (more commonly) pleiometrotic foundation (Leal & Oliveira, 1995).

Association with Other Organisms

All Associate Records for Genus

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Taxon Relationship Associate Type Associate Taxon Associate Relationship Locality Source Notes
Neoponera apicalis host eucharitid wasp Kapala sp. parasitoid Quevillon, 2018 multiple encounter modes; direct transmission; transmission outside nest
Neoponera apicalis host fungus Ophiocordyceps australis parasitoid Quevillon, 2018 encounter mode primary; direct transmission; transmission outside nest
Neoponera apicalis host phorid fly Apocephalus constrictus parasite phorid.net attacked
Neoponera apicalis host phorid fly Apocephalus crassilatus parasite Brown et al., 2015 injured
Neoponera apicalis host phorid fly Apocephalus crassilatus parasite phorid.net attacked
Neoponera apicalis host phorid fly Apocephalus paraponerae parasite Brown et al., 2015 injured
Neoponera apicalis host strepsipteran Myrmecolax incautus parasite Cook, 2019
Neoponera commutata host phorid fly Apocephalus deceptus parasite Brown et al., 2015 injured
Neoponera commutata host phorid fly Apocephalus deceptus parasite phorid.net attacked
Neoponera commutata host phorid fly Apocephalus melinus parasite Brown et al., 2015 injured
Neoponera commutata host phorid fly Apocephalus paraponerae parasite Brown et al., 2015 injured
Neoponera commutata host phorid fly Megaselia sp. parasite Brown et al., 2015 injured
Neoponera commutata host phorid fly Megaselia sp. parasitoid Quevillon, 2018 encounter mode primary; direct transmission; transmission outside nest
Neoponera crenata associate (details unknown) phorid fly Cataclinusa bucki associate (details unknown) Quevillon, 2018
Neoponera crenata host fungus Ophiocordyceps australis parasitoid Quevillon, 2018 encounter mode primary; direct transmission; transmission outside nest
Neoponera curvinodis host fungus Ophiocordyceps australis parasitoid Quevillon, 2018 encounter mode primary; direct transmission; transmission outside nest
Neoponera foetida host fungus Ophiocordyceps australis parasitoid Quevillon, 2018 encounter mode primary; direct transmission; transmission outside nest
Neoponera goeldii host encyrtid wasp Blanchardiscus pollux parasite Universal Chalcidoidea Database primary host
Neoponera inversa host collembolan Cyphoderus similis myrmecophile Brazil Castaño-Meneses et al., 2014
Neoponera inversa host collembolan Proisotoma minima myrmecophile Brazil Castaño-Meneses et al., 2014
Neoponera inversa host collembolan Pseudosinella sp. myrmecophile Brazil Castaño-Meneses et al., 2014
Neoponera inversa host nematode Mermithidae (unspecified "Mermix") parasite Colombia Wheeler, 1928; Laciny, 2021
Neoponera laevigata associate (details unknown) phorid fly Ecitomyia juxtaposita associate (details unknown) Quevillon, 2018
Neoponera moesta host fungus Ophiocordyceps kniphofioides parasitoid Quevillon, 2018 encounter mode primary; direct transmission; transmission outside nest
Neoponera obscuricornis host phorid fly Apocepbalus sp. 84 parasite La Selva, Costa Rica Brown & Fenner, 1998
Neoponera obscuricornis host phorid fly Apocephalus sp. 84 parasitoid Quevillon, 2018 encounter mode primary; direct transmission; transmission outside nest
Neoponera obscuricornis prey phorid fly Dohrniphora oricilla predator Quevillon, 2018
Neoponera unidentata host phorid fly Apocephalus atrimarginatus parasite Brown et al., 2015 injured
Neoponera unidentata host phorid fly Apocephalus atrimarginatus parasite phorid.net attacked
Neoponera unidentata host phorid fly Apocephalus constrictus parasite phorid.net attacked
Neoponera unidentata host phorid fly Apocephalus crassilatus parasite Brown et al., 2015 attracted to injured
Neoponera unidentata host phorid fly Apocephalus crassilatus parasite phorid.net attacked
Neoponera unidentata host phorid fly Dohrniphora sp (not D. longi-gp) parasite Brown et al., 2015 injured
Neoponera unidentata host phorid fly Megaselia sp. parasite Brown et al., 2015 injured
Neoponera unidentata host phorid fly Megaselia sp. parasitoid Quevillon, 2018 encounter mode primary; direct transmission; transmission outside nest
Neoponera unidentata prey phorid fly Dohrniphora sp. predator Quevillon, 2018
Neoponera verenae host eucharitid wasp Kapala sp. parasitoid Quevillon, 2018 multiple encounter modes; direct transmission; transmission outside nest
Neoponera verenae host strepsipteran Myrmecolax incautus parasite Cook, 2019
Neoponera villosa host fungus Ophiocordyceps australis parasitoid Quevillon, 2018 encounter mode primary; direct transmission; transmission outside nest
Neoponera villosa host fungus Ophiocordyceps kniphofioides parasitoid Quevillon, 2018 encounter mode primary; direct transmission; transmission outside nest
Neoponera villosa host nematode Mermithidae (unspecified "Mermix") parasite Neotropics Wheeler, 1928; Laciny, 2021
Neoponera villosa host phorid fly Apocephalus constrictus parasite phorid.net attacked
Neoponera villosa host phorid fly Apocephalus crassilatus parasite Brown et al., 2015 injured
Neoponera villosa host phorid fly Apocephalus crassilatus parasite phorid.net attacked
Neoponera villosa host phorid fly Apocephalus globosus parasite Brown et al., 2015 injured
Neoponera villosa host phorid fly Apocephalus globosus parasite phorid.net attacked
Neoponera villosa host phorid fly Apocephalus paraponerae parasite Brown et al., 2015 injured
Neoponera villosa host phorid fly Dohrniphora sp (not D. longi-gp) parasite Brown et al., 2015 injured
Neoponera villosa host syrphid fly Hypselosyrphus trigonus parasitoid Quevillon, 2018 encounter mode independent; direct transmission; transmission outside nest
Neoponera villosa prey phorid fly Dohrniphora sp. predator Quevillon, 2018

Life History Traits

  • Mean colony size: "typically fewer than 200", but up to 1,800+, and even 10-100 thousand (Greer et al., 2021)
  • Compound colony type: not parasitic (Greer et al., 2021)
  • Nest site: hypogaeic; arboreal (Greer et al., 2021)
  • Diet class: omnivore; predator (Greer et al., 2021)
  • Foraging stratum: subterranean/leaf litter; arboreal (Greer et al., 2021)
  • Foraging behaviour: solitary (Greer et al., 2021)

Castes

Morphology

Worker Morphology

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 • Eyes: >100 ommatidia • Pronotal Spines: absent • Mesonotal Spines: absent • Propodeal Spines: absent • Petiolar Spines: absent • Caste: none or weak • Sting: present • Metaplural Gland: present • Cocoon: present

Karyotype

Species Uncertain

  • Neoponera venusta group: 2n = 54, karyotype = 6M+48A (Brazil) (Mariano et al., 2007) (as Pachycondyla venusta group).

All Karyotype Records for Genus

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Taxon Haploid Diploid Karyotype Locality Source Notes
Neoponera 54 6M+48A Brazil Mariano et al., 2007 as ''Pachycondyla venusta'' group
Neoponera apicalis 18 36 28M+8A Brazil Mariano et al., 2007; Delabie et al., 2008; Mariano et al., 2015 as ''Pachycondyla apicalis''
Neoponera apicalis 19 38 16M + 22A Mexico Mariano et al., 2015
Neoponera apicalis 19 38 20M + 18A French Guiana Mariano et al., 2015
Neoponera apicalis 20 40 30M+10A Brazil Mariano et al., 2007; Delabie et al., 2008; Mariano et al., 2015 as ''Pachycondyla apicalis''
Neoponera apicalis 34 68 44M+20A Brazil Mariano et al., 2007; Delabie et al., 2008; Mariano et al., 2015 as ''Pachycondyla apicalis''
Neoponera apicalis 34 68 6M + 62A French Guiana Mariano et al., 2015
Neoponera bactronica 13 26 6M + 20A Brazil Mariano et al., 2011; Mariano et al., 2015
Neoponera bactronica 14 28 22M + 6A Brazil Mariano et al., 2011; Mariano et al., 2015
Neoponera carinulata 12 24 4M+20A Brazil Mariano et al., 2007; Mariano et al., 2015 as ''Pachycondyla carinulata''
Neoponera concava 54 6M + 48A Brazil Mariano et al., 2011; Mariano et al., 2015
Neoponera crenata 13 26 2M+24A Brazil Mariano et al., 2006a; Mariano et al., 2007; Mariano et al., 2011; Mariano et al., 2015 as ''Pachycondyla crenata''
Neoponera curvinodis 26 4M+22A Brazil Mariano et al., 2007 as ''Pachycondyla subversa''
Neoponera curvinodis 28 22M+6A Brazil Mariano et al., 2007 as ''Pachycondyla subversa''
Neoponera goeldii 12 24 24A French Guiana Mariano et al., 2007; Mariano et al., 2011; Mariano et al., 2015 as ''Pachycondyla goeldii''
Neoponera inversa 15 30 20M+10A Brazil Mariano et al., 1999; Mariano et al., 2007; Mariano et al., 2011; Mariano et al., 2015 as ''Pachycondyla inversa''
Neoponera marginata 23 46 28M+18A Brazil Mariano et al., 2007; Mariano et al., 2011; Mariano et al., 2015 as ''Pachycondyla marginata''
Neoponera metanotalis 35 70 16M+54A Brazil Mariano et al., 2011; Mariano et al., 2012; Mariano et al., 2015 as ''Pachycondyla metanotalis''
Neoponera moesta 13 26 26A Brazil Mariano et al., 2006a; Mariano et al., 2007; Mariano et al., 2011; Mariano et al., 2015 as ''Pachycondyla mesonotalis''
Neoponera unidentata 6 12 12M Brazil Mariano et al., 2007; Mariano et al., 2011; Mariano et al., 2015 as ''Pachycondyla unidentata''
Neoponera venusta 24 48 26M+22A Brazil Mariano et al., 2007; Mariano et al., 2011; Mariano et al., 2015 as ''Pachycondyla venusta''
Neoponera verenae 58 Brazil Mariano et al., 2007; Delabie et al., 2008
Neoponera verenae 58 14M+44A Brazil Mariano et al., 2007; Delabie et al., 2008 Different karyotype reported in Mariano 2007
Neoponera verenae 60 Brazil Mariano et al., 2007; Delabie et al., 2008 Different karyotype reported in Mariano 2007
Neoponera verenae 21 42 30M+12A Brazil Mariano et al., 2007; Delabie et al., 2008; Mariano et al., 2011; Mariano et al., 2015
Neoponera verenae 30 58 12M + 46-48A Brazil Mariano et al., 2011; Mariano et al., 2015
Neoponera verenae 30 60 12M + 48A French Guiana Mariano et al., 2015
Neoponera verenae 31 62 14M+48A Brazil Mariano et al., 2007; Delabie et al., 2008; Mariano et al., 2011; Mariano et al., 2015
Neoponera verenae 32 64 12M+52A Brazil Mariano et al., 2007; Delabie et al., 2008; Mariano et al., 2011; Mariano et al., 2015
Neoponera verenae 34 68 12M + 56A French Guiana Mariano et al., 2015
Neoponera verenae 34 68 8M + 60A French Guiana Mariano et al., 2015
Neoponera villosa 17 34 12M+22A Brazil Mariano et al., 1999; Mariano et al., 2007; Mariano et al., 2011; Mariano et al., 2015 as ''Pachycondyla villosa''

Phylogeny

Ponerinae

Platythyrea  (40 species, 6 fossil species)

Pachycondyla group
⊞(show genera)
Ponera group
⊞(show genera)

Harpegnathos  (13 species, 0 fossil species)

Hypoponera  (177 species, 1 fossil species)

Plectroctena group
⊞(show genera)
Odontomachus group
⊞(show taxa)

See Phylogeny of Ponerinae for details.

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • NEOPONERA [Ponerinae: Ponerini]
    • Neoponera Emery, 1901a: 43. Type-species: Formica villosa, by original designation.
    • Neoponera junior synonym of Pachycondyla: Snelling, R.R. 1981: 389; Hölldobler & Wilson, 1990: 11; Brown, in Bolton, 1994: 164.
    • Neoponera revived from synonymy: Schmidt & Shattuck, 2014: 145.
    • Neoponera senior synonym of Eumecopone, Syntermitopone, Termitopone: Schmidt & Shattuck, 2014: 145.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

Schmidt and Shattuck (2014)

Description

Worker

Medium to large (TL 6.5–19 mm) slender ants with the standard characters of Ponerini. Usually monomorphic, but size polymorphic in Neoponera laevigata, Neoponera marginata, and Neoponera luteola. Mandibles triangular, with numerous teeth on the masticatory margins and often with a faint basal groove. Anterior clypeal margin convex, sometimes emarginate or coming to a point medially. Frontal lobes of moderate size. Preocular carinae present (Neoponera s.s.) or absent (Termitopone and relatives). Eyes large to very large, placed at or anterior to head midline. Pronotum often with sharp humeral margins (rounded in Termitopone and relatives). Mesopleuron often divided by a transverse groove, but sometimes undivided. Metanotal groove sometimes shallowly impressed but usually reduced to a simple suture. Propodeum moderately narrowed dorsally and often with shallowly ridged posterior margins. Propodeal spiracles slit-shaped in most species, round in a few (Neoponera concava, Neoponera emiliae, Neoponera schultzi, Neoponera venusta). Metapleural gland orifice with a U-shaped posterior cuticular lip and a lateral groove. Metatibial spur formula (1s, 1p). Arolia prominent. Petiole nodiform but highly variable, in Neoponera s.s. the node usually with a vertical or sloped anterior face and a sloping posterodorsal face, the two faces meeting along a sharp edge; the node is more rounded in Termitopone and its relatives. Gaster with a strong to moderate girdling constriction between pre- and postsclerites of A4. Stridulitrum present on pretergite of A4. Head and body usually finely punctate, sometimes striate, pruinose, or smooth and shiny (Termitopone). Head and body with sparse to scattered pilosity, and with absent (Termitopone) to abundant pubescence. Color variable, orange to black.

Queen

Very similar to worker but winged, slightly larger, and with ocelli and the modifications of the mesosoma typical of alate ponerine queens.

Male

See descriptions for individual species in Forel (1899), Santschi (1921, 1923), Wheeler (1925, 1936), Borgmeier (1959) and Mackay & Mackay (2010).

Larva

Described for individual species by Wheeler & Wheeler (1952, 1971a, 1974), Petralia & Vinson (1980) and Mackay & Mackay (2010).

References