Rogeria lirata

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Rogeria lirata
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Solenopsidini
Genus: Rogeria
Species: R. lirata
Binomial name
Rogeria lirata
Kugler, C., 1994

Rogeria lirata P casent0900957.jpg

Rogeria lirata D casent0900957.jpg

Specimen Label

Reported as widespread throughout tropical South America (LaPolla and Sosa-Calvo 2006). Specimens from Guyana were collected from forest leaf-litter samples.

Identification

Kugler (1994) - germaini species group. As in Rogeria germaini but: 1) metapleural lobes larger, triangular, and 2) rugae on promesonotum more rounded and thicker than on head; one ruga begins near anteroventral corner of pronotum and continues unbroken to the metanotum.

Similar to Rogeria tonduzi.

Keys including this Species

Distribution

Brazil, Colombia, Guyana, Peru and Trinidad

Distribution based on Regional Taxon Lists

Neotropical Region: Brazil, Colombia (type locality), Ecuador, Guyana, Peru, Trinidad and Tobago.

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

The following is modified from Kugler (1994): Little is known about these cryptic ants. Collection records typically range from sea level to 1000m, but five species extend higher and two (Rogeria unguispina and Rogeria merenbergiana) can be found at 2000m. Rogeria are generally collected in moist forests (primary or secondary forests, coffee or cacao plantations), but at higher elevations can be found in pastures (Rogeria leptonana, Rogeria merenbergiana). Several species (Rogeria creightoni, Rogeria cuneola, Rogeria foreli) have been found in moist and dry climates. Rogeria foreli is the most unusual, with some members dwelling at over 1800m in the temperate mountains of southern Arizona.

Most species have only been collected as strays or by Berlese or Winkler sampling, from leaf litter and rotten wood, but occasionally among epiphytes and moss (Rogeria belti, creightoni, Rogeria exsulans). Nests of several species (belti, Rogeria blanda, merenbergiana) have been found under the loose bark of rotten logs. Nests of blanda and Rogeria tonduzi have been taken from the trunks of cacao trees. A nest of Rogeria leptonana was found at 1750m under a rock in a pasture.

Nests are rarely found. Males are known for only four species (belti, blanda, leptonana and Rogeria stigmatica) and queens associated through nest series for only nine species.

Castes

Males have not been collected.

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • lirata. Rogeria lirata Kugler, C. 1994: 43, figs. 28-30, 89-90 (w.q.) COLOMBIA.

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

Description

Worker

Holotype and Paratype. TL 2.6-3.4 (3.3), HL 0.63-0.80 (0.78), HW 0.53-0.70 (0.67), SL 0.45-0.56 (0.55), EL 0.05-0.08 (0.08) (6-12 facets), 43 PW 0.39-0.51 (0.51), WL 0.65-0.87 (0.86), SpL 0.12-0.20 (0.175), PetL 0.31-0.47 (0.44), PpetL 0.17-0.23 (0.21)mm, CI 0.83-0.88 (0.86), OI 0.09-0.12 (0.12), SI 0.79-0.85 (0.82), PSI 0.19-0.23 (0.20). N=10

Kugler 1994 fig 24-31

Dentition as in Rogeria germaini. Nuchal groove forms a weak notch in lateral view. No clear angle between anterior and dorsal faces of pronotum. Spiracle faces slightly caudad, posterior edge within one diameter of nearest edge of propodeum. Petiolar peduncle with a sharp, but not lamellate keel. Petiolar node profile angular. Postpetiolar node in dorsal view shaped as in Figs. 24 or 49; sternum flat. Sting apparatus as described for germaini.

Divergent longitudinal rugae on frontal lobes grade into areolate sculpture at level of eyes. Sculpture of posterior head transversely arching rugose to rugose-areolate. Laterodorsa and sides of head longitudinally rugose-areolate; sides may be effaced to nearly smooth. Head microsculpture vestigial; intervals nearly smooth, quite shiny. Anterior face of pronotum areolate, becoming vermiculate-rugose on disc. Thick, rounded rugae of pro meso no tum may merge, but are rarely joined by cross-ridges. Rugae on meso- and metapleura sharper and more separated. Anterior and dorsal faces of petiolar node smooth. Sides and posterior faces of node in holotype longitudinally rugose-areolate, but weaker and more rugose in Trinidad specimen and nearly smooth in specimens from Peru. Microsculpture weak or absent; integument shiny.

Scapes with decumbent to suberect hair (holotype) or with short, uniformly subdecumbenthair. Head dorsum with subdecumbent to erect hair. In most, mandibles, frontoclypeal region, antennae and legs brownish-yellow; other parts rusty brown, becoming darker, almost black, on dorsa of mesosoma and petiole. Trinidad and Guyana specimens lighter on all parts.

Queen

TL 3.6-3.7, HL 0.76-0.80, HW 0.69-0.70, SL 0.52-0.57, EL 0.14-0.15, PW 0.58-0.60, WL 0.95-1.00, SpL 0.18-0.20, PetL 0.46-0.52, PpetL 0.23-0.24mm, CI 0.88-0.90, SI 0.76-0.81, PSI 0.18-0.21. N=4.

Besides the usual features of an alate female, differing from the worker in the following ways. Mandible with 7 teeth or 3 teeth and 5 denticles. Parapsidal furrows not distinct from furrows in sculpture. Propodeal spines project caudad or posteroventrad. Rugae on sides of pronotum almost vertical to shoulder, then bend across the anterior face of the pronotum. Mesonotal rugae longitudinal with occasional fusions and cross-ridges. Wing venation most similar to that of Rogeria stigmatica. Radial sector and median veins long, nearly reaching wing margin; r-m vein present.

Etymology

The name lirata refers to the characteristic rugae of the mesosoma, which resemble the ridges thrown up by a plow.

Type Material

Paratype Specimen Labels

Holotype locality. COLOMBIA: 7km N Leticia, forest litter, 10-25-11-1972, #B-230 (S. and J. Peck) Museum of Comparative Zoology.

Paratype localities. TRINIDAD: 3 workers, #191 (N. A. Weber) MCZ, Museu de Zoologia da Universidade de Sao Paulo; 1 worker, Mayaro, Trinity Hills Reserve, 5-VIII-1976 (J. Noyes) The Natural History Museum. GUYANA (British Guiana): 1 worker, R. Mazaruni Forest Settlement, 20-VIII-1935, #304 (N. A. Weber) MCZ. COLOMBIA: 2 workers, holotype locality [mouthparts, sting; one coated for electron microscopy] Charles Kugler Collection, MCZ. PERU: 2 workers, Loreto Department, 15km WSW Yurimaguas, 5.59S 76.13W, 200m, 22-VII-1986, #8701-24 and #8701-25 (P. S. Ward) [mouthparts, sting] Los Angeles County Museum of Natural History, MCZ.

References