Hallomenus axillaris
From Wikipedia, the free encyclopedia
| Hallomenus axillaris | |
|---|---|
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Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Suborder: | Polyphaga |
| Infraorder: | Cucujiformia |
| Family: | Tetratomidae |
| Genus: | Hallomenus |
| Species: | H. axillaris |
| Binomial name | |
| Hallomenus axillaris (Illiger, 1807) | |
Hallomenus axillaris is a species of fungus beetle in the family Tetratomidae, measuring 2.5–4.5 mm in length with a dark brown to black body often featuring lighter brownish-yellow areas at the shoulder region. The species develops within various polypore fungi in coniferous forests across the Palearctic region, from Scandinavia and western Russia through central Europe to France, with populations also in Siberia and parts of China. First described by Johann Karl Wilhelm Illiger in 1807, it is distinguished from related species by its smaller size, absence of dark spots on the pronotum, longer second antennomere, and fine punctation of the pronotum.
Hallomenus axillaris was originally described as Clerus axillaris by Johann Karl Wilhelm Illiger in 1807 and later reassigned to the nominate genus Hallomenus. It belongs to the subgenus Hallomenus within Tetratomidae. This species is distinguished from its close relative H. binotatus by its smaller size (2.5–4.5 mm versus 3.5–6 mm in H. binotatus), absence of dark spots on the pronotum, a proportionally longer second antennomere, and fine, non‑granular punctation of the pronotum.[1]