Kinsey: The Genus Neuroterus 
29 
Mesonotum smooth, mesopleurse entirely, very finely 
roughened ; male colored as the female ; galls polymorphic, 
polythalamous swellings of stems or leaves, or mono- 
thalamous anther capsules; eastern North America; very 
similar, agamic and bisexual generations alternate. 
N. vernus 
a. Antennae brown, brownish yellow basally ; areolet 
rather large ; northeastern U.S. ; on Q. alba. 
var. bassettii 
b. Antennae dark brown, straw color basally; areolet 
quite large; northeastern U.S.; on Q. bicolor. 
var. distortus 
c. Antennae wholly straw yellow ; areolet moderate ; 
Texas; on Q. stellata. var. evanescens 
d. Antennae brown, straw yellow basally ; areolet larger ; 
northeastern U.S. ; on Q. stellata. var. exiguus 
e. Antennae brown, brownish yellow basally ; areolet 
smaller ; northeastern U.S. ; on Q. prinoides. 
var. tectus 
/. Antennae brown, paler basally; areolet large; Middle 
West; on Q. macrocarpa. var. vernus 
7. Third antennal segment hardly longer than the fourth; 
galls simple and inseparable (more or less separable 
and wool-covered in verrucarum) ; alternate generations 
(?) very similar in insects and galls; bisexual and 
agamic. 8 
Third antennal segment twice the length of the fourth; 
galls entirely separable, of distinctive form; alternating 
generations very similar (all generations agamic?). 10 
8. Eyes rather larger, cheeks narrow; first abscissa rather 
angulate; galls wholly inseparable, naked of hairs. 9 
Eyes smaller, cheeks wider ; first abscissa in most 
varieties (not all) more arcuate; galls rather separable, 
covered with wool. N. verrucarum 
a. Antennae very dark basally; areolet large; galls small, 
the papilla on the upper surface large; northeastern 
U.S.; on Q. alba. var. exiguissimus 
b. Antennae brownish yellow basally ; areolet larger than 
a moderate size; gall typical; northern Middle West; 
on Q. bicolor. var. floccosus 
