Strumigenys nubila

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Strumigenys nubila
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Strumigenys
Species: S. nubila
Binomial name
Strumigenys nubila
Lattke & Goitía, 1997

Strumigenys nubila casent0900178 p 1 high.jpg

Strumigenys nubila casent0900178 d 1 high.jpg

Specimen Labels

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. Within the gundlachi-complex two species, Strumigenys lalassa and Strumigenys nubila, are characterised as follows.

1 Mandibles long, MI 64 - 72, their inner margins shallowly convex in the basal half to two-thirds but concave in the apical third to half.

2 Two small denticles arise from the surface between the apicodorsal and apicoventral teeth of the apical fork.

3 Preapical dentition is restricted to the apical third and consists of 4 - 8 teeth and denticles, always with 2 short-spiniform teeth, the proximal of which is longer than the distal.

4 Flagellate hairs are absent and the hairs on the leading edge of the scape are coarse and broad, flattened or spoon-shaped.

5 Disc of postpetiole may be smooth with fine costulae or reticulate-punctate.

The two species are separated by their very different pilosity and postpetiolar sculpture.

Keys including this Species

Distribution

Colombia and Venezuela

Distribution based on Regional Taxon Lists

Neotropical Region: Colombia, Venezuela (type locality).


Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Nomenclature

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

  • nubila. Strumigenys nubila Lattke & Goitía, 1997: 387, fig. 37 (w.) VENEZUELA. Combination in Pyramica: Bolton, 1999: 1673; in Strumigenys: Baroni Urbani & De Andrade, 2007: 125. See also: Bolton, 2000: 191.

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

Description

Worker

Bolton (2000) - TL 3.2-3.3, HL 0.67-0.70, HW 0.56-0.58, CI 80-84, ML 0.45-0.49, MI 64-67, SL 0.34-0.39, SI 63-70, PW 0.37-0.39, AL 0.78-0.81 (2 measured, and measurements from Lattke & Goitia manuscript). Characters of gundlachi-complex. Inner margin of mandible shallowly convex in basal two-thirds, concave in apical third. Apex of mandible with two intercalary denticles between apicodorsal and apicoventral teeth. Preapical dentition of mandible of 4 - 6 denticles or small teeth. Proximally with 1 or 2 denticles located about where the margin changes from convex to concave; these are followed distally by a short spiniform tooth, a lower narrower small tooth, and 1 or 2 dentic1es before the apicodorsal tooth. Cephalic dorsum densely clothed with short spatulate ground-pilosity. Apicoscrobal hair stout, clavate. Cephalic dorsum with a single pair of stout standing hairs, close to occipital margin. Pronotal humeral hair stout, remiform or flattened apically. Dorsal alitrunk with a single pair of standing hairs, on the mesonotum. Mesopleuron smooth and shining. Disc of postpetiole mostly smooth and shining, with sparse fine longitudinal costulae but not reticulate-punctate.

Type Material

Bolton (2000) - Strumigenys nubila Lattke & Goitfa, 1997: 387, fig. 37. Holotype and paratype workers, VENEZUELA: Edo. Merida, ca Estacion de Teleferico "La Montana", 2440 m., 27.vi.1989 (S. & J. Peck). Paratype workers, VENEZUELA: same data as holotype but 2450 m., 26.vii.1989; Edo. Lara, 9 km. S E Babacoas, 9°46'N, 70°00'W, 2000 m., 22.viii.1987, no. 8920-30 ( P. S. Ward); COLOMBIA: Depto. Risaralda, Transecto Parque Los Nevados, vertiente oeste, 2500 m., 1980, TPN 42 (T. van der Hammen) (Instituto de Zoologia Agricola, Museu de Zoologia da Universidade de Sao Paulo, Museum of Comparative Zoology, The Natural History Museum, Los Angeles County Museum of Natural History, National Museum of Natural History, and in coll. P. S . Ward) (paratypes examined).

References