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Species: Octostruma planities   Longino, 2013 

Classification:
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Taxonomic History (provided by Barry Bolton, 2022)

Octostruma planities Longino, 2013b PDF: 48, figs 1B, 3B, 5O, 13B, 35, 43 (w.) NICARAGUA. Neotropic. Primary type information: Primary type material: holotype worker. Primary type locality: Nicaragua: Región Autónoma del Atlántico Sur, 27 km. WSW Rama, 12.12267, -84.46227, ±100 m., 50 m., 18.iv.2011, 2nd growth riparian forest, ex sifted leaf litter, #7323-s (J. Longino). Primary type depository: CASC. Primary type specimen: CASENT0619872. Secondary type information: Secondary type material: 2 paratype workers. Secondary type localities: 1 paratype worker with same data as holotype, 1 paratype worker with same data as holotype but 13 km. WNW Rama, 12.19470, -84.33665, ±100 m., 190 m., #7322-s (J. Longino). Secondary type depositories: MCZC, USNM. AntCat AntWiki

Overview:

A cryptic inhabitant of forest floor leaf litter and rotten wood; from lowland wet and dry forest in Mexico and Central America. // 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 to Costa Rica.

Biology:

Octostruma planities is a lowland species that occurs in a wide variety of habitats including rainforest, seasonal moist forest, seasonal dry forest, and thorn scrub. Collections are from sea level to 600 m elevation. All collections are from Winkler or Berlese samples of sifted litter and rotten wood from the forest floor.

Identification:

Face lacking transverse arcuate carina; basal five teeth of mandible acute; apex of labrum bilobed; face typically with 2 spatulate setae on posteromedian vertex margin, lacking elsewhere on face, mesosomal dorsum, and first gastral tergite; filiform setae lacking on petiole, postpetiole, first gastral sternite; dorsal face of propodeum flat or weakly convex over entire length; metanotal groove not impressed; HW < 0.72.

Comments:

Specimens from wet forest sites on the Caribbean side of the range tend to have the surface of the clypeus matte, while specimens from dry habitats in central and western parts of the range have the clypeus shiny. Thus there is the potential of cryptic or ecotonal species.

The name refers to its restriction to lowland areas.

Specimen Habitat Summary

Found most commonly in these habitats: 4 times found in tropical moist forest, 2 times found in old cacao plantation, 1 times found in tropical thorn scrub, 1 times found in 2nd growth riparian forest, 2 times found in 2º tropical rainforest, 2 times found in montane wet forest, 1 times found in Primary wet forest, 1 times found in Quercus forest, 1 times found in sabal thorn forest, 1 times found in 2nd growth forest, ...

Found most commonly in these microhabitats: 12 times ex sifted leaf litter, 2 times Hojarasca, 1 times sweeping, 1 times sifted litter (leaf mold, rotten wood), 1 times litter, 1 times ex sifted leaf litter and rotten wood.

Collected most commonly using these methods: 5 times MaxiWinkler, 5 times MiniWinkler, 3 times Winkler, 2 times Mini Winkler, 1 times berlese, 1 times sweeping.

Elevations: collected from 10 - 1300 meters, 286 meters average

Collect Date Range: collected between 1940-09-01 00:00:00.0 and 2012-07-20 00:00:00.0

Type specimens: holotype Octostruma planities Longino 2013: casent0619872; paratype Octostruma planities Longino 2013: casent0625016, casent0625029



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