Mymecophilous
Guides
Arthmius
Arthmius is a genus of small rove beetles in the family Staphylinidae, subfamily Pselaphinae, commonly referred to as ant-loving beetles. The genus contains nine described species distributed in North America. Members of this genus are associated with ant colonies, a characteristic trait of many Pselaphinae. The genus was established by John Lawrence LeConte in 1849.
Microdon ruficrus
spiny-shield ant fly
An uncommon syrphid fly of the eastern United States and adjacent Canada. Adults are metallic greenish or bluish black with distinctive cupreous thoracic stripes and a spiny scutellum. Larvae develop within nests of the ant Lasius americanus. The species is one of approximately 6,200 described syrphid flies worldwide.
Parrhasius
Parrhasius is a genus of Neotropical hairstreak butterflies in the family Lycaenidae. The genus includes the White M hairstreak (Parrhasius m-album), characterized by metallic blue upper wings and a distinctive M-shaped pattern on its silver-colored underside. Species in this genus are associated with oak habitats and have documented relationships with tending ants.
Reichenbachia facilis
Reichenbachia facilis is a small ant-loving beetle in the family Staphylinidae, subfamily Pselaphinae. It was described by Casey in 1884 and is distributed across eastern and central North America. As a member of the tribe Brachyglutini, it is likely associated with ant colonies, though specific ecological details remain poorly documented.