![]() For each species, we list the counties, date ranges, and the most recent years they have been collected or observed in the openly-accessible checklist. In this way, social parasites and cleptoparasites take advantage of the other species’ efforts to build a nest and collect food.Ī checklist of halictid bees recorded in Pennsylvania is presented below. Then, the parasite’s larva eats the food that the host stored. Either the adult parasite or their larva kills the host’s young in the nest. Parasitic bees invade and lay their eggs in the nest of another bee species. Even closely related species or groups of species can be very different! Notably, some species are specialists that only collect pollen from certain plant species, Most bees in this family store food for their young in their own nests, but others are social parasites or cleptoparasites. ![]() Halictidae is one of the most diverse bee families, in terms of behavior and biological traits. The level of sociality within a species can also vary based on the climate, season, and the location of their nest. ![]() Species of bees in this family may be solitary, communal, semi-social, or primitively eusocial (having less ridged social structures than fully eusocial bees). Wide range of colors and patterns, but may appear wasp-like, nearly hairless, and often have black, brown, or metallic coloration (green, bronze, blue)īees in this family nest in burrows they dig in the ground or, less commonly, in decaying wood.A pair of grooves on their face (one below each antenna).A strongly curved basal vein in the forewing.General identifying morphological characters include:
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