110 Hemiptera-Heteroptera. 
The genus may be thus characterized: Head with the 
eyes not quite touching the pronotum, and not contracted 
behind them, eyes rather prominent, antenniferous tuber- 
cles not produced laterally, face triangular, sharply pointed 
in front, the central lobe much longer than the cheeks, 
basal joint of the antenna extending beyond the apex of 
the head for about a third of its length ; rostrum reaching to 
the intermediate coxe ; pronotum more or less trapezoidal 
in most cases, but nearly square in others, this character 
varying with the development of the wings; lateral mar- 
gins more or less sinuate, pale and foliaceous just behind the 
middle ; elytra developed, with the membrane full and reach- 
ing beyond the apex of the abdomen, or with it curtailed, 
exhibiting the terminal segments; legs with the anterior 
femora incrassate, bearing a large spine beneath and a 
series of small ones between it and the apex; mesosternum 
simple, or with two tubercles in front of the coxze, long and 
curved in the ¢, short in the @. 
(2) 1, Antenne longer, pale throughout, large tooth 
of anterior femora situated about the middle pretus. 
(1) 2. Antenne shorter, rarely pale throughout, large 
tooth of the anterior femora nearer the apex 
than the middle. 
(6) 8. Mesosternum tuberculated in front of the inter- 
mediate coxx, 
(5) 4, Pronotum wider posteriorly, membrane in the 
undeveloped form scarcely produced beyond 
the apex of the corium . ‘ . AFFINIS. 
(4) 5, Pronotum narrower posteriorly, m membrane in 
the undeveloped form produced for at least 
half the length of its diameter beyond the 
apex of the corium. ci . : p » PUNCTATUS. 
(8) 6. Mesosternum simple. 
6 
7. First and second joints of the antenne longer, 
surface more distinctly pilose TrUBERULUS. 
(7) 8. First and second joints of the antennas shorter, 
surface glabrous, or scarcely pilose. 
9, First and second joints of the antennie pale, ex- 
cept the apex of the second; almost always 
undeveloped and shghtly pubescent. NEGLECTUS, 
(9) 10. First and second joints of antenne black, except 
the extreme base of second ; almost always 
developed, and practically glabrous. + DECORATUS, 
