REPORT OF THE STATE ENTOMOLOGIST IQO/ 



387 



breed exclusively in hickory 



HORMOMYIA H. Lw. 



The species included in this genus at the present time rep- 

 resent two rather distinct types. The more 

 typical form is large and heavy-bodied, 

 with the mesonotum greatly producec 

 over the head. The wings are long, nar- 

 row, and the males of this division have 

 14-26 binodose antennal segments, the 

 circumfili being short, the loops rarely 

 having a length greater than the dis- 

 tance separating the stems. Another type 

 provisionally referred to this genus, is 

 most easily recognized by the short wings, 

 broadly rounded posteriorly and having 

 a width about }i the length. These 

 species are rather small and the males 

 have the short, stout circumfili charac- 

 teristic of the larger forms. American 

 representatives of these smaller forms, so ^'e- 1^ " ° p"?." "\r ""» ^ ""i 



^ ' eric ana Felt, 1 2th antennal 



far as known, 

 leaf galls. 



Key to species 

 a Wings long, usually with a length more than twice the width [pi. 37, fig- 2] 

 b Antennae composed of more than 20 segments 

 c Palpi uniarticulate 



d Antennae with 25 segments; abdomen yellowish, male 



a m e r i c a n a Felt, C. 91 

 cc Palpi biarticulate 



d Antennae with 27 segments ; abdomen yellowish, with the 5th, 

 6th and 7th segments dull orange; ventral plate long, broad, 

 broadly rounded distally, male, .p a 1 u s t r i s Felt, C. 1205 

 dd Antennae with 26 segments ; abdomen uniformly fuscous yel- 

 lowish ; ventral plate long, broad, deeply and triangularly 



emarginate, male needhami Felt, C. 788 



bb Antennae with less than 20 segments 

 c Antennae composed of 18 segments 



d Abdomen dark brown, the 3d and 4th segments margined 



posteriorly with yellow; palpi biarticulate, female 



at 1 an ti c a n. sp., C. 815 

 cc Antennae composed of 15 segments 



d Abdomen dark brown, the 8th segment mostly yellowish; 

 palpi biarticulate; ventral plate long, spatulate, truncate 



apically, male consobrina n. sp., C. 1204 



ccc Antennae composed of 14 segments 



segment of male, much 

 larged. (Original) 



