.jpg){kind=logo}
Strumigenys pasisops
| Strumigenys pasisops | |
|---|---|
| |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Attini |
| Genus: | Strumigenys |
| Species: | S. pasisops |
| Binomial name | |
| Strumigenys pasisops (Bolton, 2000)
| |
This species is known from only three workers, all from Monteverde cloud forest. Two workers were collected in a rotten log by P. S. Ward, and one worker was collected in a sifted litter sample, taken as part of a class project taught by J. T. Longino. (Longino, Ants of Costa Rica)
Identification
Bolton (2000) - A member of the crassicornis-complex in the Strumigenys gundlachi group. Averaging slightly larger than the upper range of Strumigenys myllorhapha this is the largest known species of the crassicomis-complex. Its mandibles are decidedly shorter than myllorhapha (MI 44 versus MI 61-67 in the latter) and its eyes are much larger. In the largest myllorhapha workers the eyes have about 16 ommatidia (4 in the longest row) and a maximum diameter ca 0.17 X HW.
Longino (Ants of Costa Rica) - Mandibles in full-face view linear, elongate and narrow; ventral surface of petiole without spongiform tissue; leading edge of scape with freely projecting hairs; inner margin of mandible with a clearly defined submedian tooth near the midlength; labral lobes long, trigger hairs at apices of lobes short; preapical denticles gradually decreasing in size; mandibles relatively short (MI 33-45); propodeal suture moderately impressed; total head length greater than 0.90mm; eyes relatively large, with 24 or more ommatidia in total, with 6-7 in the longest row; scapes relatively long (SI 66-67).
Keys including this Species
Distribution
Latitudinal Distribution Pattern
Latitudinal Range: 10.3° to 10.3°.
| 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
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- pasisops. Pyramica pasisops Bolton, 2000: 192 (w.) COSTA RICA. Combination in Strumigenys: Baroni Urbani & De Andrade, 2007: 125
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 2.8, HL 0.72, HW 0.51, CI 71, ML 0.32, MI 44, SL 0.34, SI 67, PW 0.36, AL 0.78. Characters of crassicornis complex. Mandible with 7 – 9 denticles distal of the submedian tooth, 2 - 3 denticles proximal of it. Apex of mandible with 4 minute intercalary denticles between apicodorsal and apicoventral teeth. Median third of outer margin of mandible shallowly concave in full-face view. Eye relatively large, with 6 - 7 ommatidia in the longest row and 24 or more ommatidia in total; maximum eye diameter ca 0.21-0.22 X HW. Leading edge of relatively long and slender scape evenly shallowly convex, its main hairs flattened and none conspicuously curved toward the base of the scape. Apicoscrobal hair flattened. Cephalic dorsum with a single pair of erect hairs, close to occipital margin. Pronotal humeral hair stiff; a pair of erect stout hairs present on mesonotum. Head and alitrunk reticulate-punctate everywhere except for pleurae, which are mostly smooth and shining.
PARATYPE. TL 2.9, HL 0.70, HW 0.50, CI 71, ML 0.31, MI 44, SL 0.33, SI 66, PW 0.36, AL 0.76.
Type Material
Holotype worker, Costa Rica: Puntarenas Prov., Monteverde, 1500 m., 26.v.1979, ex rotten log, montane rainforest, #3530 (P. S. Ward) (The Natural History Museum).
Paratypes. 1 worker with same data as holotype. 1 worker, Costa Rica: Puntarenas, Monteverde, 10°l8'N, 84°48'W, 13-1600 m., Univ. Calif. EAP 1991, wet forest ex sifted leaf litter (no collector' s name) (University of California, Davis, Instituto Nacional de Biodiversidad).
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. 65:1-1028.8 (page 192, worker described)
- [[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
- Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.
- INBio Collection (via Gbif)