Palearctic-distribution
Guides
Aleochara tristis
A small rove beetle in the subfamily Aleocharinae, notable for the extreme morphological and behavioral specialization of its male reproductive anatomy. Males possess an intromittant organ disproportionately long relative to body size and have evolved a unique post-copulatory behavior termed 'shouldering' to retract this structure. The species has a broad distribution across the Palearctic and has been introduced to North America.
Caradrina montana
Civil Rustic Moth
Caradrina montana is a small noctuid moth with a wingspan of 26–31 mm. It has a broad distribution spanning western North America, western Asia, and Europe. The species is known to feed on alfalfa leaves, making it a documented herbivore of agricultural crops.
Helopini
darkling beetles
Helopini is a tribe of darkling beetles within the family Tenebrionidae, containing at least 50 genera. Members are distributed across diverse habitats from lowlands to high-altitude areas, including cold environments. Several species have been documented feeding on lichens, with some showing specialized associations with particular lichen families. The tribe includes both native and introduced species, with some taxa demonstrating cold-adaptation mechanisms including antifreeze proteins.