Cresson-1878
Guides
Dufourea marginata
Sunflower Shortface
Dufourea marginata is a species of sweat bee in the family Halictidae, commonly known as the Sunflower Shortface. It occurs in North America. Two subspecies are recognized: D. m. marginata and D. m. halictella. As a member of the Rophitinae subfamily, it is among the more specialized halictid bees.
Megachile mellitarsis
Megachile mellitarsis is a solitary bee species in the family Megachilidae, first described by Cresson in 1878. Like other leafcutter bees, females carry pollen on scopal hairs beneath the abdomen rather than on the hind legs. The species is known from limited observations in Middle America and North America.
Megachile mucida
Megachile mucida is a species of leafcutter bee in the family Megachilidae, described by Cresson in 1878. As a member of the genus Megachile, it is a solitary bee that carries pollen on scopal hairs beneath its abdomen rather than on leg baskets. The species is known from North America, though specific details about its biology and ecology remain limited in published literature.
Torymus zabriskii
Torymus zabriskii is a species of parasitoid wasp in the family Torymidae. The species was originally described as Diomorus zabriskii by Cresson in 1878 and subsequently transferred to the genus Torymus. Torymid wasps in this genus are known to develop as parasitoids within insect-induced plant galls.