Eupsilobiidae

Casey, 1895

Genus Guides

1

Eupsilobiidae is a small of beetles in the superfamily Coccinelloidea, containing seven and 16 . The family was historically classified within Endomychidae but has been recognized as distinct based on morphological and molecular evidence. Most diversity is concentrated in the Neotropics, though the genus Eidoreus has achieved distribution. Members are fungivorous and exhibit commensal relationships with social insects.

Pronunciation

How to pronounce Eupsilobiidae: //juːpsɪloʊˈbaɪɪdiː//

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Identification

Separation from Endomychidae relies on subtle morphological characters including details of antennal structure and tarsal formula. The is distinguished from other Coccinelloidea by combinations of characters related to mouthpart structure and genitalic . Definitive identification to family level requires examination of microscopic features.

Habitat

Associated with fungal resources and the nests of social insects. Most occupy tropical forest environments in the Neotropical region.

Distribution

Primary diversity in the Neotropics, with Cerasommatidia, Chileolobius, Evolocera, and Ibicarella restricted to this region. The genus Eidoreus is found worldwide. Two genera, Microxenus and Natalinus, occur in South Africa.

Diet

Fungivorous; feeds on fungal material.

Host Associations

  • bees - commensalobserved living in nests
  • ants - commensalobserved living in nests

Behavior

Has been observed living commensally within nests of bees and ants.

Ecological Role

Fungal decomposer; commensal inhabitant of social insect nests.

Similar Taxa

  • EndomychidaeFormerly included within this ; distinguished by morphological characters of , , and genitalia.

More Details

Taxonomic history

Elevated from status within Endomychidae to rank based on phylogenetic studies placing it in Coccinelloidea.

Included genera

Cerasommatidia, Chileolobius, Eidoreus, Evolocera, Ibicarella, Microxenus, Natalinus.

Sources and further reading