RHYNCHOTA. 
475 
t Posterior lobe of thorax very obsoletely or not at all 
impressed, the impressions^of the two lobes never con- 
tinuous. 
aa. Head and posterior lobe of thorax of equal length. 
Dinocleptes, g. n. 
Head as long as, or longer than, the thorax. 
— Posterior lobe of thorax longer than anterior. 
0. Joint 1 of rostrum long, extending a little beyond 
the eyes Spiiodronyttus, g. n. 
00. Joint 1 of rostrum not extending behind eyes. 
Ocelligerous part of head very much elevated. 
Oataspiiactes, g. n. 
Ocelligerous part of head scarcely or not elevated. 
Reduvius (Fab.). 
= Thoracic lobes of equal length ; ocelligerous part 
of head not higher than intraocular j anterior 
femora incrassate. 
0. Body narrow, subelongate. 
Hasmatochares (Stm). 
00. Body rather broad, suboblong. 
Agrioclopius, g. n. 
II. Sciitellum dilated or foliaceous at apex. 
A. Scutellum dilated, reflexed ; hemelytra a little exceeding abdomen ; 
femora not nodose Cosmolestes, g. n. 
B. Scutellum slightly foliaceous, and conca,ve at apex ; hemelytra very 
long ,* femora slightly nodulose ........ Callilestes, g. n. 
Stfil (1. c. pp. 202-204) publishes a conspectus of the genera of American 
Ileduviida wanting a lateral anterior tubercle on the mesostethium {Zelus and 
allies), of which the following is an abridgement : — 
I. Thorax not gibbous or produced behind over the scutellum. 
A. Femora bispinose at apex. 
1. Postocidar part of head gTadually narrowing behind when seen from 
above or from the side ,* ocelligerous part slightly elevated. 
Ricolla. 
2. Postocular part of head gradually narrowing behind when seen from 
above, not from the side, base suddenly coarctate beneath ; ocel- 
ligerous part scarcely or not elevated. 
a. Thorax quadrispinose Boldina (StSl). 
b. Thorax unarmed behind Hygromystes. 
B. Femora unarmed at apex. 
1. Joints 1 and 2 of rostrum equal, or 1 longer than 2. 
a. Postscutellum not acutely prominent behind scutellum. 
* Head oval, oblong, or elongate, not gibbous beneath, 
a. Ocelligerous part of head not elevated. 
a. Head subcylindric, postocular part little longer than ante- 
ocular, very slightly narrowing behind. 
Fitchia (StEl). 
h. Postocular part scarcely twice as long as anteocular, 
distinctly narrowing behind. Pirnonota, g. n. 
3, Ocelligerous part of head more or less elevated. 
