REPORT OF THE STATE ENTOMOLOGIST 1907 
HorMomyIa H. Lw. 
387 
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 produced 
over the head. The wings are long, nar- 
row, and the males of this division have 
14-260 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 34 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 Fig.42 Hotmomyia am 
ericana Felt, r2th antennal 
far as known, breed exclusively iim INClworyy see male, much en- 
larged. (Original) 
leaf galls. 
Key to species 
a Wings long, usually with a length more than twice the width [pl. 37, fig. 2] 
b Antennae composed of more than 20 segments 
c Palpi uniarticulate 
d Antennae with 25 segments; abdomen yellowish, male 
AMTieealicrasiraee lel tan anor 
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..palustris Felt, C. 1205 
dd Antennae with 26 segments; abdomen uniformly fuscous yel- 
lowish; ventral plate long, broad, deeply and triangularly 
Cinaneiiatempiadlene ein ee ier 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..... 
ACIAMPICA Mm Sy G sre 
cc Antennae composed of 15 segments 
d Abdomen dark brown, the 8th segment aie yellowish; 
palpi biarticulate; ventral plate long, spatulate, truncate 
ancl, WHE, osoocc0c0c00e COMSODTIMA WM So, Co i20yl 
ccc Antennae composed of 14 segments 
