340 NEW YORK STATE MUSEUM 



Dcscriberl from several s|)eciniens bred June ify, 1883. from 

 sage bush, Artemisia 1 r i d e n t a t a , at Fort Garland, Col. 

 This species may possibly be identical with the R h a b d o - 

 p h a g a t r i d e n t a t a c Rubs, which was 1)red from this plant, 

 though this last named form is credited with having but 16 

 antennal segments and the stem being but }< the length of 

 the basal enlargement, whereas in the form under consideration 

 the stem is at least % the length of the basal enlargement. 



Type C. 989, U. S. National Museum 3120 



ARNOLDIA Kieff. 

 Males 



a Stem of antennal segment about ^ longer than the basal enlargement 

 b Abdomen pale orange, palp 2 segmented, ventral plate broadly and 

 roundly emarginatc, dorsal plate broad and roundly emarginate 



u n g u 1 a t a Felt, C. 1221 

 bb Abdomen pale brown, palp 4 segmented, ventral plate slightly emar- 

 ginate, dorsal plate triangularly emarginate 



hi s p i d a Felt, C. 519 

 bbb Abdomen dark yellowish fuscous, palp 4 segmented, ventral plate 



emarginatc distally, dorsal plate slightly emarginate 



(D a s y n e u r a) c e r a s i Felt, C. 343 

 aa Stem of antennal segment about as long as the basal enlargement 



b Abdomen yellowish brown, palp 3 segmented, ventral plate broadly 



rounded v i t i s Felt, C. a 1 165a 



bb Abdomen reddish yellow, tibiae and tarsi dark brown, palp 3 seg- 

 mented, ventral plate roundly emarginate 



a b s o b r i n a Felt, C. ai55Sx 



bbb Abdomen light yellowish or yellowish orange, tibiae fuscous straw, 



tarsi dark brown or black, palp 4 segmented, ventral plate roundly 



emarginate f r a x i n i f o 1 i a Felt, C. a 1572a 



aaa Stem of antennal segment ^4 the length of the basal enlargement 



b Abdomen dark brown, palp 5 segmented, dorsal plate triangularly 

 incised , minor Felt, C. 431 



Females 



a Abdomen pale yellowish, 5th antennal segment with a length about thrice 



its diameter, palp 3 segmented absobrina Felt, C. ai555x 



aa Abdomen light fuscous yellow, 5th antennal segment witli a length about 

 2^^ times its diameter, palp 4 segmented vitis Felt, C. aii6sa 



DASYNEURA Rond. 



This genus com])rises a large nund)er of medium and rather 

 small usually dark brown insects which breed by preference in 

 leafy tissue. This group intergrades with Rhabdophaga and the 



