Malar groove present. Mesoscutum coriaceous. Wimg dotted,non-ciliate, 
with a faint cloud on second transverse and a fainter 
Light-colored small species. ^4 
Malar groove absent... 
54. Mesoscutum with transverse sculpture. Wing non-ciiiate^reolet indistinct. 
From elongated cells under bark in twigs.BASSETTIA Ashmead^ 
Mesoscutum coriaceous or smooth.* 
35 . Antennae l4-seg. with 3 not as long as 1. Tergite II with a woolly ring at 
base. Ventral spine short. From root galls on red oaks. . EUMAYRIA Ashm. 
Antennae l4-to l6-seg.,moniliform,3 longer than 1. Mesoscutum beautifully 
““ptured. Fhol bud galls.TRISOLENIELIA Rohwer and Fagan 
56. Head and thorax densely pubescent with the habitue of a Disholcaspis. . . 31 
Head and thorax bare or with short appressed pubescence or scattered 
hairs which do not hide the sculpture in any case. 
37, Hind femur with large blunt lobe on distal half below 
pubescent. From root galls on white oaks. 
Hind femur without such a blunt lobe 
VII only. From root galls. . • 
Sides of tergites 
ODONTOCYNIPS Kieffer 
Pubescence on tergites II and 
. HOLOCYNIPS Kieffer 
38. Mesoscutum smooth or coriaceous, bare,polished. Head, sides d 
and disk sculptured, dull. Mesopleuron smooth. . . . DRYOCOSMUS Giraua 
Mesoscutum sculptured, dull, at most with scattered hairs or short 
appressed pubescence which does not hide the sculpture. ' 
39. Wing not ciliate (except in males of sexual generation)....... ••J ’ 0 
Wing normally ciliate on the margin. . . . Section D OALURHYTI 
40. Venation normal, veins distinct beyond second cross-vein.. ~ tl 
Venation pale, veins beyond second cross-vein barely visible. 
Light-colored species. From stone gallB in acorns or flower gall . 
Llgnt-coio ea p Section B CALLIRHYTIS Foerster 
41. LighVcolored agamic forms with short appressed pubescence oh 
mesoscutum which does not hide the sculpture which is never coarse. 
From pip galls beside mature or immature acorns. 
rrom pxp g Section A CALLIRHYTIS Foerster 
Reddish or black agamic forme with body mostly bare or K ^h l)ut 
sparse pubescence. From root galls. Section C CALLIRHYTIS F 
Note: These four sections of Callirhytis are not to be regarded 
as distinct genera. In the case of a known life history 
the agamic female out of a pip gall on acorns goes in 
Section A and the alternating sexual generation out of 
a gall on the flowers goes in Section B. 
16 
