Hylaeus, Fabricius, 1793

Montalva, José, Dudley, Leah S. & Houston, Terry F., 2019, First record of Hylaeus (Gnathoprosopis) euxanthus (Hymenoptera: Colletidae) in Chile, Journal of Melittology 2019 (91), pp. 1-4 : 2-3

Key to Species of Hylaeus of Chile

1. Male ............................................................................................................................ 2

—. Female ........................................................................................................................ 3

2. Mandibles, scape yellow; 3 rd metasomal sternum bearing pair of spines, at least in larger specimens ............................................... H. euxanthus (Cockerell)

—. Mandibles, scape black; 3 rd metasomal sternum lacking spines ....................... .................................................................................................... H. punctatus (Brullé)

3. Propodeal enclosure bordered laterally by distinct carinae ................................ .............................................................................................. H. euxanthus (Cockerell)

—. Propodeal enclosure not bordered laterally by distinct carinae ......................... ..................................................................................................... H. punctatus (Brullé)