164 NEW YORK STATE MUSEUM 
aa Ventral plate long, slender, tapering distally 
b Dorsal plate rather long, triangularly emarginate, the lobes long and 
narrowly triangular 
c Abdomen pale yellowish or carmine, length 1 mm; fifth antennal 
segment having the stems with a length two and one-half and four 
times thetdiameters respectively. sane aaee see oe eae 
triangularis Felt, C. 428, 499 
aaa Ventral plate long, rather stout, broadly rounded apically 
6 Dorsal plate short, the lobes truncate 
c Abdomen dark red, the segments margined with fuscous, length 
I mm; fifth antennal segment having the stems with a length 
two and one-fourth and four times the diameters, respectively, 
trinodose: Mee aera we saietee subtruncata Felt, C. 506 
cc Abdomen fuscous brown, length 1 mm; fifth antennal segment 
having the stems with a length one and one-half and three times 
the diameters, respectively........... montana Felt, C. 631 
ccc Abdomen yellowish brown, length 1 mm; fifth antennal segment 
having the stems with a length twice and two and one-half times 
the diameters respectively .......... cinie taples: BeltwGy 1522 
aaaa Ventral plate long, emarginate 
b Ventral plate tapering distally, roundly emarginate 
c Dorsal plate short, roundly emarginate, the fifth antennal segment 
having the stems with a length one and one-half and two and 
one-half times the diameters respectively; reared from roots of 
Cra tit Levyial -seihgvatom ae ewes: a: cattleyae Moll., C. 979 
cc Dorsal plate short, narrowly and triangularly emarginate, the lobes 
produced laterally; abdomen yellowish, length 1 mm; fifth 
antennal segment having the stems with a length two and one- 
half and three and one-half times the diameters respectively. . 
rubisolita Felt, C. 656 
ccc Abdomen pale yellowish, length 1 mm. Reared from oak bark. . 
ClO Licuiss helty Ca To75 
bb Ventral plate long, slender, broadly emarginate 
c Dorsal plate triangularly emarginate, the lobes truncate 
d Abdomen reddish brown, length .75 mm; fifth antennal seg- 
ment having the stems with a length three and four times 
the diameters respectively........ extensa Felt, C. 228 
bbb Ventral plate long, broad, scarcely tapering, very broadly emarginate 
c Dorsal plate short, triangularly emarginate, the lobes truncate 
d Abdomen a fuscous reddish brown, length 1.5 mm; fifth 
antennal segment having the stems equal, each with a 
length three and one-half times its diameter; the lobes of 
the dorsal plate*roundly truncates en... 4. se soe ee eee 
pratensis Felt, ©. 741 
dd Abdomen fuscous yellowish, fifth antennal segment having 
the stems with a length two and one-half and three and one- 
half times the diameters respectively; the lobes of the dorsal 
plate broadly emarginate; reared from bud gall on spirea. . 
clarkeae Felt, C. a2074 
