20. Scutellum tapering behind into a blunt point. Ventral spine short,rounded 
at end, gristly. From galls of the "hedgehog" type on leaves of white 
oaks in fall (Figs. ... ACRASPIS Mayr 
Scutellum rounded behind. Ventral spine truncate or lobed, broadest at 
apex. From globular galls on leaves of white oaks in fall (Fig.228). 
oi Molaw , PHILONIX Fitch 
Malar groove absent.*. 2 ^ 
22. Radial cell with abscissa XI of R strongly bent. Claw with a weak tooth. 
From a fleshy root gall. Texas.sex.gen. XANTHOTERAS Asbmead 
Radial cell of normal shape.elongated. Wings large. From fleshy galls 
on roots of white oaks. Light-colored species, over 5.0 mm. 
0 , Tr , , , sex .gen. XANTHOTERAS Ashmead 
O* Ventral spine narrow, slender,almost bare. 24 
Ventral spine stouter, bristly, triangular, tapering to a blunt point 
( Fig. 24, a, b).. 27 
24. Mesoscutum smooth,shining,bare. Parapsidal grooves percurrent. Head as 
broad as thorax. Abdomen nearly as high as long. . . . LI0D0RA Foerster 
Mesoscutum sculptured. . 25 
25. Head narrower than thorax. 26 
Head as broad as thorax. Mesoscutum rugose, punctate or coriaceous. 
Without the habitus of an Amphibolips or an Adleria. . . ANDRICUS Hartig 
26. Wing clear. Head,thorax and Bides of tergites pubescent; sculpture 
never coarse. ..ADLERIA Rohwer and Fagan 
Wing transversely banded, smoky or with a large dark cloud at base of 
radial cell. Sculpture coarse.AMPHIBOLIPS Reinhard 
27. Robust species with whole thorax pubescent. .. t 28 
Smaller species with mesoscutum bare and shining. Parapsidal grooves 
obsolete anteriorly. From bud galls on white oaks. sex.gen.ACRASPIS Mayr 
28. Radial cell short.veins heavy; wing with spots. Tergites foliiform. 
From oak apples on white oaks.ATRUSCA Kinsey 
Radial cell normal. Parapsidal grooves obsolete anteriorly. Tergites not 
foliiform. Ex detachable galls on white oaks. . . DISHOLCASPIS D.T.& K. 
Claws simple 
Fore tibia with an oblique terminal spur on one side at least as long as 
the usual furcula opposite. Fla. and Texa 3 .BELONOCNEMA Mayr 
Fore tibia without such a terminal spur. ............... ^q 
50. Ventral spine stout,bristly (Fig.24). Scutellum without pits. Wing 
reduced or normal. From leaf galls.SPHAEROTERAS Ashmead 
Ventral spine slender, not bristly.^ 
51. Wingless, ant-like, head broader than thorax. Under 5.0 mm. Scutellum 
with an elevated, knob-like disk. Parapsidal grooves percurrent and 
approaching each other behind. From small galls on leaves of red 
oaks in the fall.ZOPHEROTERAS Ashmead 
ing reaching.little beyond tip of abdomen. From cells under the bark 
on Q.myrtifolia. .. agamic EUMAYRIA Ashmead 
Fully winged.. 
32. Head from above massive (length at least half width),broader than thorax 
(but not with colorless veins and a woolly ring at base of abdomen 
which go in Callirhytis B) (Figs. 25.26,27). jj 
Head from above not massive (Except a few in Callirhytie B) but transverse, 
rarely broader than thorax. . .. ^6 
15 
