Stinging-insects
Guides
Hymenoptera
Ants, Bees, Wasps, and Sawflies
Hymenoptera is one of the largest and most diverse orders of insects, comprising sawflies, wasps, bees, and ants. Over 150,000 living species have been described, with more than 2,000 extinct species known from fossils. The order is characterized by haplodiploid sex determination, where females develop from fertilized diploid eggs and males from unfertilized haploid eggs. Hymenopterans exhibit a wide range of lifestyles from solitary to highly eusocial, and include major pollinators, predators, and parasitoids. Molecular analysis places Hymenoptera as the earliest branching group of Holometabola, with origins in the Triassic period.
Vespidae
Hornets, Paper Wasps, Potter Wasps, Yellowjackets, Mason Wasps
A large, cosmopolitan family of wasps encompassing nearly 5,000 described species. Vespidae includes nearly all known eusocial wasps—such as hornets, yellowjackets, and paper wasps—as well as numerous solitary species including potter and mason wasps. The family exhibits remarkable diversity in nesting behavior, from paper nests constructed from chewed plant fibers to mud nests and soil burrows. Social colonies typically contain a reproductive queen and sterile or subfertile female workers, with temperate species producing new queens and males annually before colony collapse in winter.
Vespula
yellowjackets, yellow jackets, Ground Yellowjackets
Vespula is a genus of social wasps in the family Vespidae, collectively known as yellowjackets in North America. The genus is distinguished from its sister genus Dolichovespula by a shorter oculomalar space and a stronger tendency to nest underground. Vespula species are widely distributed across the Northern Hemisphere, with most species native to North America and four species (V. austriaca, V. germanica, V. rufa, V. vulgaris) native to Europe. Several species have been introduced outside their native ranges, including V. germanica and V. vulgaris in New Zealand, Australia, South America, and Southern Africa.