Dryinus Latreille, 1804

Olmi, Massimo & Guglielmino, Adalgisa, 2011, Revision of fossil species of Dryinus belonging to lamellatus group, with description of a new species (Hymenoptera, Dryinidae), ZooKeys 130, pp. 505-514 : 506-507

Genus Dryinus Latreille, 1804

Diagnosis.

Female: macropterous; mandible with 1-4 teeth; occipital carina complete, or incomplete, or absent; antenna without tufts of long hairs on segments 5-10, usually with rhinaria, occasionally without; antennal segment 3 less than five times as long as segment 2; occasionally antennal segment 3 more than five times as long as segment 2 (in this case, notauli occasionally complete and scutum completely sculptured by numerous and parallel longitudinal keels); palpal formula 6/3; pronotal tubercle reaching or not tegula; forewing with three cells enclosed by pigmented veins (costal, median and submedian); protarsus chelate; chela with rudimentary claw; segment 5 of protarsus less than twice as broad as enlarged claw; enlarged claw as long as, or shorter than protibia; tibial spurs 1/1/2, rarely 1/1/1. Male: macropterous; mandible with 1-3 teeth; palpal formula 6/3; occipital carina complete or incomplete; lateral regions of prothorax not continuous with mesopleura; epicnemium visible; mesosternum fused with mesopleura and not distinct; forewing with three cells enclosed by pigmented veins (costal, median and submedian); paramere without dorsal process; tibial spurs 1/1/2.

Distribution.

Worldwide.

Hosts.

Acanaloniidae , Cixiidae , Dictyopharidae , Flatidae , Fulgoridae , Issidae , Lophopidae , Ricaniidae , Tropiduchidae ( Guglielmino and Olmi 1997, 2006, 2007)

Species.

Two hundred and seventy-nine.

Remarks.

The Neotropical species of Dryinus are divided into four groups, according to the following key ( Olmi 1993):

Key to fossil species of the lamellatus group

Females (males unknown)