Belohinidae

Definition

A monotypic family of polyphagan beetles (Coleoptera) containing the single species Belohina inexpectata, a rare, flightless beetle endemic to southern Madagascar. The family is distinguished by highly reduced elytra exposing most of the abdomen, an unusual trait among beetles that has led to its placement in the series Staphyliniformia. Known from only a handful of specimens, Belohinidae exemplifies extreme rarity and local endemism in beetle diversity.

Etymology

From Belohina (type genus), itself derived from Malagasy beloha (neck) + -ina, referring to the constricted 'neck' between head and pronotum.

Example

Belohina inexpectata, the sole member of Belohinidae, was described in 1956 from a few specimens collected in spiny forest habitat in southern Madagascar; its reduced wing covers make it superficially resemble a rove beetle (Staphylinidae) rather than a typical beetle.

Related Terms

• Belohina inexpectata
• Staphyliniformia
• monotypic family
• elytron
• Polyphaga
• Madagascar endemism
• Rove beetle

Usage Notes

The family's placement within Staphyliniformia reflects morphological convergence with rove beetles rather than close phylogenetic relationship. The extreme rarity of specimens has limited anatomical and molecular study; field biologists should note that 'Belohinidae' refers to the family rank, while 'Belohina' is the genus, and 'Belohina inexpectata' is the complete species name. No other species or genera are currently assigned to this family.