218 lTemiptera-fleteroptera. 
black hairs mixed with paler, 
species sub-robust. 
(101) 100. Antenne with the third and fourth 
joints very little thinner than the 
second . HopioMacuts. 
(100) 101. Antenne with the third and fourth 
joints much thinner than the 
second . Macroco.evs. 
(89) 102. Elytrashining, oftenclothed with pale 
decidnons, seale-like pubescence. 
(104) 103. Second joint of the antenne shorter 
than the third. HARPocERA. 
(108) 104. Second joint of the antenne longer 
than the third. 
(108) 105, Tibize with pale spines. 
(107) 106. Elongate, depressed, elytra parallel- 
sided. Puytus. 
(106) 107. Not elongate and depressed, elytra 
with sides rounded J . PLesiopEMA, 
(105) 108. Tibize with black spines. 
(112) 109. Elytra clothed with short, deciduous, 
seale-like pubescence. 
(111) 110. Second joint of the antennz in both 
sexes incrassated . : ATRACTOTOMUS. 
(110) 11]. Second joint of the antennze not in- 
crassated PsaLus. 
(109) 112. ae clothed with fine regular 
airs. 
(114) 113. Femora entirely pale ASCIODEMA. 
(113) 114. Femora more or less dark, or spotted 
with black or brown. : . PLacgioGNatHus. 
PITHANUS, Fieb. 
Subelongate, elytra rarely fully developed. Head trans- 
verse on the vertex; face nearly perpendicular; eyes large 
and prominent; antennz with the basal joint short and 
stout, the second and following much narrower; pronotum, 
in the developed form, widest behind, with the sides sinuate, 
in the undeveloped form, widest in front, in both with a 
strongly developed lateral tubercle near the front margin, 
base sinuate; scutellum convex; elytra in the developed 
form with the cuneus very feebly indicated, as also are the 
basal cells of the membrane, in the undeveloped form the 
elytra are only about twice as long as the scutellum ; 
abdomen with the connexivum reflexed; legs rather one, 
