Current View: All Antweb
Change View
Cite this page

Citing AntWeb

X

To cite this page, please use the following:

· For print:      Citation: AntWeb. Version 8.41. California Academy of Science, online at https://www.antweb.org. Accessed .

· For web:


Species: Octostruma ascrobis   Longino, 2013 

Classification:
Download Data

Taxonomic History (provided by Barry Bolton, 2020)

Octostruma ascrobis Longino, 2013b PDF: 18, figs 1H, 3G, 6C, 14I, 17, 44 (w.q.) GUATEMALA. Neotropic. AntCat AntWiki

Overview:

A cryptic inhabitant of forest floor leaf litter and rotten wood; from lowland rainforests; Mexico to Costa Rica. // Distribution

Distribution:

  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Costa Rica, Guatemala, Honduras, Mexico, Nicaragua
  Biogeographic regions (According to curated Bioregion/Taxon lists):
    Neotropical

Distribution Notes:

Mexico (Chiapas) to Costa Rica.

Biology:

This species inhabits lowland rainforest, from sea-level to 1000 m elevation, but is most abundant below 500 m. All specimens are from samples of sifted leaf litter and rotten wood from the forest floor. Frequencies in quantitative samples of 1 m2 litter plots range from 0–16%. Dealate queens occasionally occur in samples, and one sample contained an alate queen. Worker number in samples is always < 10.

Identification:

Antennal scrobe very shallow, not distinctly margined; face with arcuate carina; frontal carinae extending back and joining termini of facial arc. Octostruma convallis is similar, but the frontal carinae and facial arc do not join. They are separated by a transverse trough, and the termini of the facial arc extend laterally beyond the termini of the frontal carinae.

Comments:

The name refers to the lack of sharply delimited antennal scrobes.

Specimen Habitat Summary

Found most commonly in these habitats: 17 times found in tropical moist forest, 6 times found in tropical rainforest, 8 times found in 2º lowland tropical rainforest, 7 times found in mature wet forest, 5 times found in 2º lowland rainforest, 5 times found in tropical wet forest, 1 times found in Primary wet forest, 1 times found in ridgetop cloud forest, 1 times found in Sura, 1 times found in lowland rainforest, ...

Found most commonly in these microhabitats: 52 times ex sifted leaf litter, 1 times ex sifted leaf litter and rotten wood, 1 times bajo de M/20.

Collected most commonly using these methods: 39 times MiniWinkler, 11 times MaxiWinkler, 1 times winkler, 1 times Berlese, 1 times Berlese/Winkler, 1 times flight intercept trap, 1 times Mini Winkler.

Elevations: collected from 50 - 990 meters, 339 meters average

Collect Date Range: collected between 1985-08-29 and 2011-05-08

Type specimens: holotype Octostruma ascrobis Longino 2013: casent0611295; paratype Octostruma ascrobis Longino 2013: casent0611224, casent0611225, casent0611425, casent0611426



See something amiss? Send us an email.