152 NEW YORK STATE MUSEUM 



bb Fifth antennal segment having the stems with a length one and one- 

 fourth and two times their diameters. Reared from Phenacoccus . . 



antennata Felt, C. a2327 

 bbb Fifth antennal segment having the stems very short, the basal por- 

 tion with a length only about one-half its diameter 



c Distal swelling of fifth antennal segment with a length two and 

 one-fourth times its diameter, the distal portion of the stem 

 with a length equal its diameter, the fourth palpal segment 



one-fourth longer than the third, SDme.vhat dilated 



californica Felt, C. 1312 



cc Distal enlargement of the fifth antennal segment with a length 



only one-half greater than its diameter, the distal portion of 



the stem with a length one-half greater than its diameter, fourth 



palpal segment one-half longer than the third 



h e 1 e n a Felt, C. a22 10 

 Females 



a Length i mm. Abdomen dull yellowish, the fifth antennal segment with 



a stem one-fourth the length of the subcylindric basal enlargement, 



which latter has a length twice its diameter ...annulata Felt, C. 514 



aa Length 1.25 mm. Abdomen fuscous yellowish, fifth antennal segment 



with a stem three-fourths the length of the basal enlargement, which 



latter has a length two and one-half times its diameter 



1 o n g i c o r n i s n. sp., C. 534 



aaa Length 1.5 mm. Abdomen dark carmine, fifth antennal segment with a 



stem one-half the length of the basal enlargement, which latter has a 



length twice its diameter borealis Felt, C. 159 



aaaa Length about 2 mm, fifth antennal segment with a stem one-fourth the 

 length of the cylindric basal enlargement 

 b Abdomen reddish brown, the basal enlargement of the fifth antennal 

 segment with a length three times its diameter; terminal antennal 



segment with a long, slender process apically 



r u b i d a n. sp., C. 565 



bb Abdomen reddish salmon, the basal enlargement of the fifth antennal 



segment with a length three times its diameter; terminal antennal 



segment with a short, stout process apically. Reared from a bud 



gall on Pinus scop u lor um gillettei Felt, C. a2205 



bbb Abdomen dark brown, the basal enlargement of the fifth antennal 

 segment with a length one-half greater than its diameter. Pre- 

 sumably reared from a scale insect . . .c o c c i d a r u m Felt, C. 970 

 aaaaa Length about 2 mm, fifth antennal segment with a stem three-fourths 

 the length of the cylindric basal enlargemsnt 

 b Abdomen fuscous yellowish, the basal enlargement of the fifth antennal 

 segment with a length three times its diameter. Presumably pre- 

 daceous -....venitalis Felt, C. ai 128 



Dicrodiplosis populi Felt 

 1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 394 



A single male was reared, presumably from a stibglobular, reddish 

 brown leaf gall on poplar, Populus tremuloides, taken 



