224 
IOWA ACADEMY OP SCIENCE 
crassate; pronotum with four spines on pos- 
terior lobe 40. REPIPTA 
LL. Pronotum unarmed on the disc. 
M. Apical angles of penultimate segment of ab- 
domen armed with a prominent spine; an- 
tennae about three-fourths as long as body; 
fifth and sixth abdominal segments not greatly 
dilated 47. ATRACHELUS 
MM. Apical angles of penultimate segment of 
abdomen unarmed. 
N. Ocelligerous part of head not elevated; 
lobes of pronotum indistinctly separated. 
(In part) 42. PITC'HIA 
NN. Ocelligerous part of head elevated. 
O. Femora thickened, body rather stout; 
joint 1 of antennae shorter than head and 
pronotum together 44. CASTOLUS 
OO. Body and legs slender; eyes prominent 
in male; joint 1 of antennae as long as 
head and pronotum together. 
P. Fore femora subequal in length to head 
and pronotum together 
46. GRAPTOCLEPTES 
PP. Pore femora longer than head and 
pronotum together ... 45. HIRANETIS 
GG. Sides of mesosternum with a tubercle or fold in front at 
the hind angles of the prosternum; joint 1 of rostrum 
longer than part of head cephalad of eyes. 
H. Fore femora thickened, spinous, densely granulated; 
hind femora unarmed. 
I. Fore tibiae with three long spines on the ventral side. 
54. SINE A 
II. Pore tibiae unarmed. 
J. Fore femora armed above with a long spin© near 
the apex 53. SINDALA 
JJ. Pore femofa without subapical spine above 
52. ACHOLLA 
HH. Pore femora unarmed, rarely a little thickened, a lit- 
tle granulated. 
I. Pronotum produced caudad over scutellum with a high 
mesal tuberculate ridge 50. ARILUS 
II. Caudal lobe of pronotum six sided, not elevated nor 
produced caudad. 
J. Fore tibia armed with a tooth on the ventral side; 
apical angle of the corium not produced beyond the 
middle of the membrane., 51. STHIENERA 
JJ. Fore tibia without a tooth below; apical angle of, 
the corium produced beyond the middle of the 
membrane. 
