340 NEW YORK STATE MUSEUM 
Described from several specimens bred June 16, 1883, from 
SAS iS, UNL Smisgta wridemrara, at Hor: Gaclamd, Col. 
This species may possibly be identical with the Rhabdo- 
phaga tridentatae Rubs. which was bred 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 34 the length of the basal enlargement. — 
Type C. 989, U. S. National Museum 3120 
ARNOLDIA Kieff. 
Males 
a Stem of antennal segment about %4 longer than the basal enlargement 
b Abdomen pale orange, palp 2 segmented, ventral plate broadly and 
roundly emarginate, dorsal plate broad and roundly emarginate | . 
Stim @eciuila ta Inake, (Cy nazi 
bb Abdomen pale brown, palp 4 segmented, ventral plate slightly emar- 
ginatew dorsalaplatestrangulanivemeanrcinatc mene eee teen nate 
Mispida lech, C, Si1© 
bbb Abdomen dark yellowish fuscous, palp 4 segmented, ventral plate 
emarginate distally, dorsal plate slightly emarginate.............. 
CDaAgvmiewra) Ceracn ele G. gue 
aa Stem of antennal segment about as long as the basal enlargement | 
b Abdomen yellowish brown, palp 3 segmented, ventral plate broadly 
SOS EDEN Gel G baa Wren On Tan RNG GOO NMA che aNG ahs fi Valitotsos Melty: Gxnarro5al 
bb Abdomen reddish yellow, tibiae and tarsi dark brown, palp 3 seg- 
neues, wwemearall jolene ieorthnclhy CMMARAMIe 6 .o6cccncascugoecosccs. 
AIDS Oli tie, Inelie, C, aubsgpc 
bbb Abdomen light yellowish or yellowish orange, tibiae fuscous straw, 
tarsi dark brown or black, palp 4 segmented, ventral plate roundly 
ELINA HAIMA Le eae een een eee RrdoxeimnreOilig ele, Cy angsy2a 
aaa Stem of antennal segment 34 the length of the basal enlargement 
b Abdomen dark brown, palp 5 segmented, dorsal plate triangularly 
ICISC Coty Se yA See Tete sei ea roe GROIN Rarer fami @ie leelhy, (C, agin 
Females 
a Abdomen pale yellowish, 5th antennal segment with a length about thrice 
{ice Giatmeteian pal parses commence cl emma iris a) bsobrina Welz, C. Biuls_RE 
aa Abdomen light fuscous yellow, 5th antennal segment with a length about 
24 times its diameter, palp 4 segmented........ vitis Felt, ©: arr6sam 
DASYNEURA Rond. 
This genus comprises a large number of medium and rather 
small usually dark brown insects which breed by preference in 
a2 
leafy tissue. This group intergrades with Rhabdophaga and the 
