212 NEW YORK STATE MUSEUM 
Several European species have been reared from Carex. This is 
likewise true of H. caudata Felt and it is probable that a number 
of other American species live in associated plants. 



ey 
. fee tM 
poe om 
0) Ny? We? Nyy 
yn W 
sO) Ya Qn i 
ANAICL S Chat’ 4 if A 
Besa nr eitoansisy 
/ 
‘y 


ip 
z 

Fig. 41 Hormomyia americana: a, side view of apex of last tarsal segment and 
claws of the foreleg; 6, same of last tarsal segment and claw of the hind leg 
(enlarged, | riginal) 
Key to Species 
Males 
a Antennae composed of more than 20 segments 
b Abdomen yellowish; length 5 mm. Antennae with 25 segments, the 
palpiguniarticulatesse eee sarees een nae americana Felt, C. 91 
bb Abdomen yellowish with the fifth, sixth and seventh segments dull orange; 
length 7mm. Antennae with 27 segments, the palpi biarticulate; vent- 
ral plate long, broad and broadly rounded..palustris Felt, C. 1205 
bbb Abdomen uniformly fuscous yellowish; length 6 mm. Antennae with 26 
segments, the palpi biarticulate; ventral plate long, broad, deeply and 
tnansularlyjemarginate sees eee eee needhami Felt, C. 788 
Females 
a Large, at least 4 mm long 
b 24 antennal segments, length 7 mm. Abdomen a variable yellowish; 
antennal segments with 2 circumfila, the fifth cylindric, with a length 
three times its diameter and with a distinct constriction at the basal 
third Vlobesibroadly, ovall..:)c) eee ae. cincta n.sp. C. 1345 
