08 
CATALOGUE OF 
side in the middle. Fore spines of the head 
and of the prothorax short. N. tripus, Stal. Subg. Hom alocyphus. 
b. Hind lobe of the prolborax inflated, transversely 
impressed in the middle or a little before 
the middle, with a horn directed outward, 
slightly curved forward in the middle on 
each side, abruptly and much straightened 
behind the horns, lengthened more hindward 
and then behind the middle abruptly lower 
and narrower, emarginated on the hind 
border. Femora equally thick. Fore tibiae 
rather thick; basal part slender; middle 
tibiae slightly thickened before the middle. 
Hiud tibiae moderately thickened from the 
base to scarcely beyond the middle. N. 
clavipes, cinctiventris. - Subg. Notocyrtub. 
B. Head convex beneath near the base, with no 
tubercles. 
a. Head elevated above between the eyes. Hind 
lobe of the prothorax somewhat elevated, 
slightly depressed on the disk, with an obtuse 
or rounded angle on each side. N. camelus, 
fornicalus, triarcatus. - - Subg. Cystingoxotus. 
b. Head not or hardly elevated above between the 
eyes. 
* Spines of the head rather long. Hind lobe of 
the prothorax compressed before the middle, 
with a short liorn on each side in the middle ; 
this horn directed outward and slightly for- 
ward ; hind part elongated and rounded, 
depressed or impressed. N. vesiculosus, 
tlavolineatus, consimilis, pulvinatus, drome- 
darius, gibbus. - Subg. Ceratocyphus. 
** Spines of the head short. Hind lobe of the 
prothorax much elevated, with a rounded 
angle or excrescence on each side. Anterior 
tibiae slender, or very slightly thickeued. 
Hind tibiae somewhat thickened, 
f Hind lobe of the prothorax very much inflated 
and elevated, forming a rounded angle on 
each side, gradually compressed and 
narrowed before these angles, abruptly 
sloping hindward. N. fungosus, inflatus. - Subg. Saccoderes. 
-ft" Hind lobe of the prothorax less inflated and 
elevated, excavated lengthwise on the disk, 
with a short rounded excrescence on each 
side. N. excavatus. - - - Subg. Collocyrtus. 
DICROTELIDA. 
Body long. Head elongated; its tip forming 
an acute spine; ante-ocular part (excepting 
the spine) shorter than the post-ocular, with 
