HEMIPTERA HETEROPTERA. 
§§ First joint of the antennae longr. Prothorax 
with four spines hindvvard. Fore wings not 
or hardly extending beyond the tip of the 
abdomen ; fore area of the membrane a little 
broader than the hind area at the base. 
Legs rather long, slender ; fore femora much 
thickened; fore tibiae straight, just shorter 
than the femora ; tarsi small. 
ft First joint of the rostrum distinctly and very 
often much shorter than the second. 
t First joint of the rostrum distinctly longer than 
the ante-ocular part of the head. Head 
with a small tubercle or little spine behind 
the antennae ; ante-ocular part a little shorter 
than the post-ocular; ocelliferous part not 
higher than the inter-ocular part. Forelegs 
shorter than the hind legs. Apical angles 
of the prothorax prominent, most often 
acute. 
§ Legs moderately long. Side angles of the hind 
lobe of the prothorax w'ith a little tooth ; 
hind angles distinctly lengthened. Scu- 
tellum more or less depressed and foliaceous 
at the tip. - 
§§ Legs rather long; fore femora somewhat 
thickened. Side angles of the hind lobe of 
the prothorax rounded, unarmed. Scntellum 
equilateral, hardly foliaceous at the tip. 
Areas of the membrane almost equally 
broad. - Pyrthosthodrus. 
ff First joint of the rostrum about equal in length 
to the ante-ocular part of the head. Head 
oblong or elongated. 
§ Ante-ocular and post-ocular parts of the head 
equally long; ocelliferous part not higher 
than the inter-ocular part. Legs rather 
short; fore legs shorter than the hind legs; 
fore femora somewhat thickened. Prolhorax 
unarmed ; side angles of the hind lobe 
rounded, unarmed ; hind angles slightly 
lobate ; fore angles of the fore lobe distinctly 
and rather acutely luberculate. Scntellum 
triangular, slightly elongated at the tip. - Cosmoclopius. 
§§ Post-ocular part of the head longer than the 
ante-ocular. Legs long; fore femora and 
hind femora equally long, or the former 
longer than the latter. 
X Side angles of the hind lobe of the prothorax 
unarmed. 
o Ante-ocular and post-ocular parts of the head 
almost equally long. First joint of the 
65 
Debilia. 
Mjxyas. 
K 
