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Solenopsis shiptoni
| Solenopsis shiptoni | |
|---|---|
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Solenopsidini |
| Genus: | Solenopsis |
| Species complex: | nigella |
| Species: | S. shiptoni |
| Binomial name | |
| Solenopsis shiptoni Forel, 1914
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| Synonyms | |
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Nothing is known about the biology of Solenopsis shiptoni.
Identification
Pacheco and Mackay (2013) – Worker - This is a bicolored species with golden brown body and a darker brown head and gaster. The posterior margin of the head is nearly straight. The lateral clypeal teeth are well developed and extend past the anterior clypeal margin by 0.024 mm. In full face view, the eye extends past the lateral margin of the head by 0.003 mm. There are horizontal striae present on the mesopleuron and propodeum but are lacking on the pronotum. There is roughened (coriaceous) sculpturing on the lower halves of the sides of the petiole and postpetiole.
It is obvious that S. shiptoni is closely related to Solenopsis metanotalis and Solenopsis emiliae but can be distinguished by its smaller eye and lack of sculpturing on the pronotum. This lack of pronotal sculpturing is the diagnostic character for this species and separates it for all other members of the metanotalis subgroup. Solenopsis shiptoni does not have as well developed lateral clypeal teeth as does S. metanotalis and S. emiliae (extend past anterior clypeal border by approximately 0.050-0.060 mm). In addition, S. emiliae has more roughened sculpturing covering the petiole and postpetiole compared to S. shiptoni.
Keys including this Species
Distribution
Latitudinal Distribution Pattern
Latitudinal Range: -19.91666667° to -22.809943°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Neotropical Region: Argentina (type locality), Bolivia.
Distribution based on AntMaps
Distribution based on AntWeb specimens
Check data from AntWeb
Countries Occupied
| Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species. |
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Estimated Abundance
| Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species. |
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Biology
Castes
Known only from the worker caste.
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- shiptoni. Solenopsis shiptoni Forel, 1914d: 276 (w.) ARGENTINA (Tucumán).
- Type-material: lectotype worker (by designation of Pacheco & Mackay, 2013: 300), 1 paralectotype worker.
- Type-locality: lectotype Argentina: Tucumán (Shipton); paralectotype with same data.
- Type-depository: MHNG.
- Subspecies of metanotalis: Creighton, 1930b: 127; Santschi, 1931e: 277; Kempf, 1972a: 238; Bolton, 1995b: 391.
- Status as species: Bruch, 1915: 532; Emery, 1922e: 201; Ettershank, 1966: 143; Wild, 2007b: 54; Pacheco & Mackay, 2013: 299 (redescription).
- Senior synonym of steigeri: Pacheco & Mackay, 2013: 299.
- Distribution: Argentina, Bolivia, Paraguay.
- steigeri. Solenopsis shiptoni var. steigeri Santschi, 1916e: 378 (w.) ARGENTINA (Chaco).
- Type-material: lectotype worker (by designation of Pacheco & Mackay, 2013: 300), 3 paralectotype workers.
- Type-locality: lectotype Argentina: Chaco (von Steiger); paralectotypes with same data.
- Type-depository: NHMB.
- As unavailable (infrasubspecific) name: Creighton, 1930b: 128; Santschi, 1931e: 277; Kempf, 1972a: 238.
- Subspecies of shiptoni: Emery, 1922e: 201.
- Subspecies of metanotalis: Bolton, 1995b: 391.
- Status as species: Ettershank, 1966: 143; Wild, 2007b: 37.
- Junior synonym of shiptoni: Pacheco & Mackay, 2013: 299.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
Pacheco and Mackay (2013) - Measurements (n=6). TL 1.80-1.92 (1.82); HL 0.480-0.528 (0.510); HW 0.420-0.456 (0.434); EL 0.096-0.108 (0.101); ED 0.060; SL 0.342-0.354 (0.349); FSL 0.162; CI 82.4-87.5 (85.2); SI 67.0-71.3 (68.5); PL 0.078; PW 0.132-0.144 (0.137); PI 54.2-59.1 (56.9); PPL 0.120; PPW 0.168-0.180 (0.173); PPI 66.7-71.4 (69.5); WL 0.360-0.420 (0.386); PSL 0.036; PSW 0.036.
Bicolored; with golden brown body, darker brown head and gaster; head longer than wide, posterior occipital margin nearly straight; clypeal margin between lateral teeth concave; lateral teeth well developed; extralateral teeth angular, break margin of clypeus; scape does not reach posterior lateral corner of head; eye extends past lateral margin of head, approximately 17 ommatidia; horizontal striae on mesopleuron, side of propodeum, lacking on pronotum; notopropodeal suture well depressed, groove breaks sculpture of mesosoma; dorsal propodeal margin angular, propodeal spiracle relatively small; roughened sculpturing basal on petiole, postpetiole; petiole wider than postpetiole viewed laterally, triangular node; well-developed flange on subpeduncular process; postpetiolar node oval, larger than petiole when viewed dorsally.
Hairy with hair covering all body surfaces; erect and suberect hairs of various lengths from head to gaster.
Type Material
Coll. Forel, Argentina, Tucuman (Shipton) (lectotype worker and 1 paralectotype worker [here designated], Musee d'Histoire Naturelle Genève). Solenopsis shiptoni steigeri. Sammlung, Dr. F. Santschi, Kairouan, Argentina, Chaco (von Steiger (lectotype worker and 3 paralectotype workers Naturhistorisches Museum, Basel),).
References
- Forel, A. 1914. Formicides d'Afrique et d'Amérique nouveaux ou peu connus. Bull. Soc. Vaudoise Sci. Nat. 50: 211-288 (page 275, worker described)
- Pacheco, J.A. & Mackay, W.P. 2013. The systematics and biology of the New World thief ants of the genus Solenopsis (Hymenoptera: Formicidae). Edwin Mellen Press, Lewiston, New York. 501 pp.
References based on Global Ant Biodiversity Informatics
- Wild, A. L. "A catalogue of the ants of Paraguay (Hymenoptera: Formicidae)." Zootaxa 1622 (2007): 1-55.