1) Arthropod family 2) Family halictidae 
The Halictidae are a very large and nearly cosmopolitan family of the order Hymenoptera consisting of small (> 4 mm) to midsize (> 8 mm) bees which are usually dark-colored and often metallic in appearance. Several species are all or partly green and a few are red; a number of them have yellow markings, especially the males, which commonly possess...
(from the article `bee`) ...are primitive wasplike bees consisting of five or six subfamilies, about 45 genera, and some 3,000 species; Andrenidae, which are medium-sized ...
[n] - a family of small solitary bees
family Halictidae noun a family of small solitary bees; many are valuable pollinators for agriculture