Bocchus, Ashmead, 1893

Guglielmino, Adalgisa, Olmi, Massimo, Capradossi, Leonardo & Speranza, Stefano, 2020, Discovery of a new Nearctic species of Bocchus (Hymenoptera: Dryinidae), Zootaxa 4763 (3), pp. 435-438 : 437

a new key to the males of the Nearctic Bocchus is presented, as follows:

1 Notauli incomplete....................................................................... B. pratti sp. nov.

- Notauli complete..................................................................................... 2

2 Forewing with one dark transverse band..................................................... B. flavipes Kieffer

- Forewing hyaline, without dark transverse bands............................................................ 3

3 Mesoscutum dull, completely granulate, or more or less reticulate rugose, or with irregular keels or areolae.............. 4

- Mesoscutum shiny, completely or almost completely unsculptured, or punctate and unsculptured among punctures........ 7

4 Propodeal declivity with two longitudinal keels, with median area smooth, shiny and unsculptured, and lateral areas dull and rugose.............................................................................................. 5

- Propodeal declivity with or without two longitudinal keels, never with median area smooth.......................... 6

5 Mesoscutellum dull, granulate.......................................................... B. flavicollis Ashmead

- Mesoscutellum shiny, punctate, unsculptured among punctures................................ B. laticeps (Ashmead)

6 Mesoscutum granulate and slightly rugose, more strongly rugose near posterior margin.................. B. weemsi Olmi

- Mesoscutum completely and strongly reticulate rugose........................................... B. texanus Olmi

7 Head with POL longer than the minimum distance between notauli................................... B. dubius Olmi

- Head with POL as long as, or shorter than minimum distance between notauli......................... B. hainesi Olmi