Delochilocoris

Bergroth, 1893

dirt-colored seed bugs

Species Guides

2

Delochilocoris is a of seed bugs in the Rhyparochromidae, established by Bergroth in 1893. The genus contains three described : D. caliginosus, D. gracilis, and D. illuminatus. Members are classified among the 'dirt-colored seed bugs' based on their generally dull, earth-toned coloration. The genus belongs to the tribe Gonianotini within the Rhyparochrominae.

Biologia Centrali-Americana - Trapezonotus caliginosus by Bale & Danielsson; Bannwarth, Th.; Cambridge Scientific Instrument Company; Godman, Frederick Du Cane; Hanhart; Horman-Fisher, Maud; Knight, H.; Mintern Bros.; Purkiss, W.; Salvin, Osbert; Saunders, G. S.; Schlereth, M. v.; Sharp, M. A.; Taylor & Francis; Wilson, Edwin. Used under a Public domain license.

Pronunciation

How to pronounce Delochilocoris: //ˌdɛloʊˌkaɪloʊˈkɔːrɪs//

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Identification

Delochilocoris can be distinguished from other Gonianotini by genitalic characters, particularly male paramere structure. D. gracilis, described in 2008, is notably more slender than the two Distant species. The is characterized by the combination of small body size, dirt-colored (brown to black) , and specific wing venation patterns typical of Rhyparochrominae.

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Distribution

The has been recorded from the Oriental region based on the type localities of D. caliginosus and D. illuminatus (both described by Distant from material presumably collected in South or Southeast Asia). D. gracilis was described from more recent collections, extending the known range.

Ecological Role

As members of Rhyparochromidae, in this likely function as ground-dwelling seed or scavengers in leaf litter and soil surface , contributing to nutrient cycling and seed bank dynamics.

Similar Taxa

  • Other Gonianotini generaSimilar dirt-colored appearance and body plan; requires examination of male genitalia and wing structure for definitive separation.
  • RhyparochromusOverlaps in general and preference; Delochilocoris is distinguished by specific genitalic and antennal segment proportions.

More Details

Taxonomic history

The was established by Finnish entomologist Ernst Evald Bergroth in 1893. Two were originally described by William Lucas Distant in 1893, with a third species added by Scudder in 2008 based on modern material.

Species diversity

With only three described and approximately 50 iNaturalist observations, Delochilocoris appears to be a relatively poorly collected , suggesting either genuine rarity or cryptic habits that limit detection.

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