Euplectitae

Euplectitae can be distinguished from other Pselaphinae supertribes by specific combinations of morphological characters in the mouthparts, antennae, and abdominal structure. Definitive identification requires examination of microscopic features such as the detailed structure of the maxillary palps, the presence and arrangement of foveae (depressions) on the elytra and abdomen, and the form of the aedeagus. These beetles are typically less than 2 mm in length with compact, often hump-backed bodies and relatively short elytra that leave much of the abdomen exposed.

Species within Euplectitae are found in habitats where their host ants occur, including leaf litter, soil, rotting wood, and ant nest interiors. They occupy the microhabitats immediately surrounding ant colonies, often within the nest structure itself or in adjacent soil and debris.

The supertribe has been documented across multiple continents including North America, Europe, and parts of Asia, with records reflecting the distribution of both the beetles and their host ant species.

• Formicidae - myrmecophileSpecies in Euplectitae are obligate or facultative associates of ant colonies, though specific host relationships for most species remain undocumented.

As myrmecophiles, members of Euplectitae participate in complex community interactions within ant colonies. Their exact ecological functions—whether as commensals, inquilines, or possessing other relationships—remain poorly characterized for most species.

• other Pselaphinae supertribes (e.g., Faronitae, Jubini)Other supertribes within Pselaphinae share the general body plan of small, compact rove beetles with short elytra. Euplectitae is distinguished by specific morphological characters including details of the mouthpart structure and abdominal foveal patterns, requiring microscopic examination for reliable separation.

• myrmecophile
• rove beetle
• Pselaphinae
• microbeetle

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