.jpg){kind=logo}
Lachnomyrmex laticeps
| Lachnomyrmex laticeps | |
|---|---|
| |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Attini |
| Genus: | Lachnomyrmex |
| Species: | L. laticeps |
| Binomial name | |
| Lachnomyrmex laticeps Feitosa & Brandão, 2008
| |
Feitosa and Brandão (2008) - The collections of L. laticeps were made during expeditions to 500–1100m mature wet forests in northern Costa Rica. There is a record of workers collected manually beneath a treefern trunk (Longino 2007). John Longino found a L. laticeps nest in a clay bank above a small stream, at Refugio Eladio, 800m elevation in the Peñas Blancas river valley. There was a small flask-shaped entrance structure leading to a small chamber. The chamber contained a few workers only, no brood or sexuals.
Identification
Feitosa and Brandão (2008) - Pilosity exceptionally dense on body, including the first tergite of gaster; vertexal margin of head considerably broad (HW > 0,73mm); metanotal groove shallow and broadly impressed, without a well definite posterior limit. The excessively dense body pilosity and the dorsally flat head separate this species from the related Lachnomyrmex grandis and Lachnomyrmex pilosus.
Keys including this Species
Distribution
Latitudinal Distribution Pattern
Latitudinal Range: 10.333° to 9.4817844°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Neotropical Region: Costa Rica (type locality).
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. |
|
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. |
|
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.
- laticeps. Lachnomyrmex laticeps Feitosa & Brandão, 2008: 19, figs. 6, 18 (w.) COSTA RICA.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
Holotype. HL 0.83; HW 0.82; ML 0.30; SL 0.52; EL 0.14; WL 0.99; PSL 0.24; PL 0.42; PPL 0.21; GL 1.10; TL 3.86; CI 98; SI 63; OI 17. Workers (n=2). HL 0.77–0.83; HW 0.74–0.79; ML 0.29–0.30; SL 0.52; EL 0.12–0.13; WL 0.94–0.98; PSL 0.22–0.24; PL 0.39; PPL 0.20–0.22; GL 1.07; TL 3.69–3.78; CI 94–96; SI 66–70; OI 16.
Color reddish to dark brown, with lighter appendages. Body finely and densely covered by vermiculate rugae, somewhat longer and longitudinal on cephalic dorsum, and slightly sparser on mesopleura and lateral surfaces of propodeum; mandibles with short striae restricted to basal portion; petiole and postpetiole strongly and irregularly rugose. Pilosity extremely abundant, except by dorsal surface of propodeum; dorsum of petiolar node and postpetiole and first gastral tergite densely covered by long flexuous hairs.
Head visibly longer than broad, with vertexal margin virtually flat and considerably broad; frontal lobes rounded laterally; eyes with about seven facets on maximum diameter. Promesonotum strongly convex in profile; metanotal groove broadly impressed, without a distinct posterior limit; propodeal spines straight to discretely directed upwards; teeth of propodeal lobes well developed, surpassing propodeal spines half-length. Petiolar node elevated and subtriangular in lateral view; postpetiole dorsally convex and with sternite somewhat projected.
Type Material
Holotype worker. COSTA RICA: Heredia: 13Km NE Vara Blanca, 10º16'N 84º05'W, 15.ii.2001, R. Vargas col., no. INBIOCRI0003622583 [INBC]. Paratypes. same data as holotype, no. INBIOCRI0003622582 (1 worker) [MZSP]; same data, no. INBIOCRI0003622585 (1 worker) [INBC]. COSTA RICA: Alajuela: Peñas Blancas, Refugio Eladio, 10º19'N 84º43'W, 800m, 7.iii.2006, J. Longino col., no. JTLC000008160 (1 worker) [MZSP]; same data, no. JTLC000008161 (1 worker) [CASC]; Heredia: 16km SSE La Virgen, 1050–1150m, 10º16'N 84º05'W, 17.iii.2001, INBIO-OET-ALAS transect, no. INB0003214022 (1 worker) [USNM]; P.N. Braulio Carrillo, 10º20'N 84º02'W, 500m, 17.x.2005, TEAM-OET, no. INB0003679758 (1 worker) [BMNH].
Etymology
The name refers to the broad vertexal border of the workers head. From Latin: latus: broad, ceps: head
References
- Feitosa, R.M. & Brandão, C.R.F. 2008. A taxonomic revision of the Neotropical myrmicine ant genus Lachnomyrmex Wheeler (Hymenoptera: Formicidae). Zootaxa 1890, 1-49.
References based on Global Ant Biodiversity Informatics
- Feitosa, R.M. and C.R.F Brandao. 2008. A taxonomic revision of the Neotropical myrmicine ant genus Lachnomyrmex Wheeler (Hymenoptera: Formicidae). Zootaxa 1890:1-49
- INBio Collection (via Gbif)
- Longino J. T. L., and M. G. Branstetter. 2018. The truncated bell: an enigmatic but pervasive elevational diversity pattern in Middle American ants. Ecography 41: 1-12.
- Longino J. T., and R. K. Colwell. 2011. Density compensation, species composition, and richness of ants on a neotropical elevational gradient. Ecosphere 2(3): 16pp.
- Longino J. et al. ADMAC project. Accessed on March 24th 2017 at https://sites.google.com/site/admacsite/