46 
IOWA ACADEMY OP SCIENCES. 
JJ. Juga longer than tylus, contig- 
uous at their cephalic ends. 
K. Apical margin of corium 
uniformly convex; lateral 
margin of head very slight- 
ly sinuate cephalad of eyes. 
Peribalus. 
KK. Apical margin of corium 
very slightly sinuate near 
lateral end; lateral margin 
of head distinctly sinuate 
cephalad of eyes. 
Holcostetlius. 
GG. Odoriferous orifices situate just cepha- 
lad of lateral border of post-coxse, with- 
out sulcus, scarcely elevated; head 
strongly bent ventrad, front almost ver- 
tical; refiexed lateral margins of joga 
much swollen. Murgantia. 
FF. Segment 2 of venter with a mesal spine or 
tubercle pointed cephalad. 
G. Metasternum little elevated, never with 
a bi-lobed process extending cephalad of 
medi-coxse. 
H. Segment 5 of antennae less than 
twice as long as segment 2; scutel- 
lum and pronotum nearly or quite 
concolorous. Nezara. 
HF[. Segment 5 of antennae more than 
twice as long as segment 2; apex of 
scutellum and cephalic half of pro- 
notum much lighter in color than 
remaining portions. Banasa. 
GG. Metasternum strongly elevated, pro- 
duced far cephalad between the medi- 
coxae into a bi-lobed process. Fdessa. 
AA. Tarsi 2 jointed (sub-family Acanthosomince). Acanthosoma. 
