Description of the Mature Larvae of Chrysis gracillima and Omalus biaccinctus and New Data on the Biology of Trichrysis cyanea (Hymenoptera: Chrysididae)

The mature larvae of Chrysis gracillima Forster, 1853 and Omalus biaccinctus (Buysson, 1893) are described and compared with others known in the tribes Chrysidini and Elampini, respectively. Additionally, new data are reported on the biology of Trichrysis cyanea (L., 1758).