Discothyrea JTL-009 Longino ms

Formicidae, Hymenoptera, Insecta, Arthropoda, Animalia

Barva Transect

worker face view

worker lateral view

Cordillera de Talamanca

worker face view

worker lateral view


Costa Rica.


Antennae 8-9 segmented; interantennal lamella forming an obtuse angle between antennal insertions and descending to a somewhat projecting clypeal shelf, so that lamella appears rectangular in lateral view; anterior margin of interantennal lamella usually without a tooth above clypeal apron; in face view anterior margin of clypeus shallowly convex; color dark red brown; HW about 0.47mm.

Similar species: horni.

Natural History

Discothyrea are extremely small, cryptobiotic inhabitatants of forest leaf litter (see Genus Overview).

This species occurs in cloud forest leaf litter. It is known from two sites in Costa Rica: 2000m on the Barva Transect in Braulio Carrillo National Park and similar elevation in the southern Cordillera de Talamanca (Cerro Gemelo). The Cerro Gemelo specimens are lighter colored than the Barva specimens.

Page author:

John T. Longino, The Evergreen State College, Olympia WA 98505 USA.longinoj@evergreen.edu

Date of this version: 17 December 2005.
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