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Strumigenys enopla
| Strumigenys enopla | |
|---|---|
| |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Attini |
| Genus: | Strumigenys |
| Species: | S. enopla |
| Binomial name | |
| Strumigenys enopla (Bolton, 2000)
| |
Lattke and Aguirre (2015) - With the discovery of Strumigenys lojanensis (now Strumigenys onorei) it is possible to discern a group of 5 northern andean species of the gundlachi complex with a preference for cold forests above 2000 m altitude, where the presence of most ants is negligible (Longino, 2014). The other species are Strumigenys enopla, known from altitudes between 1900 and 2200 m in SW Colombia, Strumigenys nubila, sampled from altitudes between 2000 and 2500 m in Colombia and Venezuela, Strumigenys vartana, a Colombian species known from altitudes between 1800 and 2530 m and Strumigenys heterodonta which was recently described from 2940 m altitude in Ecuador (Rigato & Scupola, 2008).
Identification
Bolton (2000) - A member of the gundlachi complex in the Strumigenys gundlachi group. The long slender mandibles are matched or exceeded in Strumigenys denticulata (MI 72-85) but the latter is smaller (HL 0.42-0.48) and has shorter scapes (SI 68-81). Also, denticulata workers are yellow to pale brown rather than blackish-brown to black and have the mesonotal hairs short and stiff rather than finely flagellate and straggly; usually denticulata completely lacks a ventral spongiform lobe on the postpetiole whereas in enopla this lobe is generally easily visible, though small.
Keys including this Species
Distribution
Latitudinal Distribution Pattern
Latitudinal Range: 5.75° to 1.608°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Neotropical Region: Colombia (type locality), Guadeloupe.
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
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- enopla. Pyramica enopla Bolton, 2000: 185 (w.q.) COLOMBIA. Combination in Strumigenys: Baroni Urbani & De Andrade, 2007: 119
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
HOLOTYPE. TL 2.5, HL 0.59, HW 0.44, CI 75, ML 0.44, MI 75, SL 0.42, SI 95, PW 0.28, AL 0.66. Characters of gundlachi complex; see also notes under Strumigenys gundlachi. Mandibles long and slender, their outer margins evenly shallowly convex in full-face view. Inner margin of left mandible with 4 preapical denticles, of right with 5 (see paratypes). Scapes long and slender (the longest known among the immediate relatives of gundlachi). Erect hairs on cephalic dorsum long, simple but truncated apically, similar in length and shape to those on the first gastral tergite. Pronotal humeral hairs long fine and flagellate; dorsum of pronotum otherwise without erect hairs. Mesonotum with a pair of long fine straggly flagellate hairs. Postpetiole in profile with a small triangular ventral spongiform lobe (see paratypes); in frontal view the left and right lobes linked by a narrow transverse spongiform strip. Basal spongiform pad on first gastral sternite vestigial to absent. First gastral tergite un sculptured except for the short, weakly developed basigastral costulae. Colour blackish-brown to black.
PARA TYPE. TL 2.3-2.7, HL 0.54-0.62 , HW 0.41-0.46, CI 72-78, ML 0.38-0.46, MI 70-78, SL 0.34-0.44, SI 84-100, PW 0.26-0.32, AL 0.58-0.70 (11 measured). As holotype but number of preapical denticles on mandible varying from 3 to 7, usually a with different number on each. Scape length appears allometric; smaller specimens have relatively shorter scapes. Size of ventral spongiform lobe of postpetiole variable, usually roughly triangular but in some reduced to a narrow arched strip; transverse ventral strip always visible.
Type Material
Holotype worker, Colombia: Huila, Parque Nacional Cuevas de los Guacharos, 10 km. SE Palestina, 2200 m., 16.i.1978, cloud forest (C. Kugler & J. Hahn) (Museum of Comparative Zoology).
Paratypes. 4 workers and 1 ergatoid queen with same data as holotype; 4 workers with same data but 1900-2200 m, 15.i.1978, forest; 3 workers with same data but 17.i.1978 (MCZ, The Natural History Museum).
References
- Baroni Urbani, C. & De Andrade, M.L. 2007. The ant tribe Dacetini: limits and constituent genera, with descriptions of new species. Annali del Museo Civico di Storia Naturale “G. Doria” 99:1-191.
- Bolton, B. 2000. The ant tribe Dacetini. Memoirs of the American Entomological Institute. 65:1-1028. (page 185, worker described)
- Lattke, J.E. & Aguirre, N. 2015. Two new Strumigenys F. Smith (Hymenoptera: Formicidae: Myrmicinae) from montane forests of Ecuador. Sociobiology. 62:175-180. (doi:10.13102/sociobiology.v62i2.175-180).
- Meurgey, F. 2020. Challenging the Wallacean shortfall: A total assessment of insect diversity on Guadeloupe (French West Indies), a checklist and bibliography. Insecta Mundi 786: 1–183.
- [[Media:Silva, T.S.R.D., Chaul, J.C.M. et al. 2022. Lectotype designation and redescription of four commonly collected Neotropical species of Strumigenys (10.5852@ejt.2022.798.1673).pdf|Silva, T.S.R.D., Chaul, J.C.M., Feitosa, R.M. 2022. Lectotype designation and redescription of four commonly collected Neotropical species of Strumigenys (Hymenoptera: Formicidae). European Journal of Taxonomy, 798(1), 103–126 (Template:Doi.org).]]
References based on Global Ant Biodiversity Informatics
- Bolton, B. 2000. The Ant Tribe Dacetini. Memoirs of the American Entomological Institute 65
- Galkowski C. 2016. New data on the ants from the Guadeloupe (Hymenoptera, Formicidae). Bull. Soc. Linn. Bordeaux 151, 44(1): 25-36.
- Lattke J. E., and N. Aguirre. 2015. Two New StrumigenysF. Smith (Hymenoptera: Formicidae: Myrmicinae) from montane forests of Ecuador. Sociobiology 62(2): 175-180.