LEPTOSTYLA. 13 
d. Antenne with joint 1 two or two and a half times the length of 2. 
Pronotal hood short, considerably raised; head with two or three 
short frontal spines; subcostal area of the elytra with two to four 
rows of small, closely packed, areole. 
c’. Pronotum with the membranous margins very broadly and arcuately 
dilated, with four rows of areolz at the middle; elytra subequally 
reticulated, obliquely unifasciate . . . . . . . . . « dilaticollis, n. sp. 
. Pronotum with the membranous margins moderately wide, with two 
(or three) rows of areole ; elytra unequally reticulated. 
e’’, Elytra subparallel, broad. 
i’, Elytra with the apex, the inner half thence to the base, and an 
oblique fascia on the costal area more or less fuscous . . . 4difasciata, nu. sp. 
i’, Elytra with the apex and the inner half thence to the base fuscous. 
c‘, Basal joint of the antenne black . . . . . . . . . . divisa,n, sp. 
d*, Basal joint of the antenne testaceous. . . . . . . . . furculata, n. sp. 
f’. Elytra oval, narrow, constricted atthe middle . . . . . . . constricta, n. sp. 
1. Leptostyla vesiculosa, n. sp. (Tab. I. figg. 15; 154, profile.) 
Elongate, widening behind; body black, the integument pale testaceous and hyaline, the elytra with a long 
oblique curved fascia extending from just behind the discoidal area to the apex, and the summit of the 
membranous portions of the pronotum, fuscous ; the legs and antenne pale testaceous, the apical joint of 
the latter (except at the extreme base) black; the nervures of the pronotal processes and also the margins, 
the nervures of the elytra, and the costa to beyond the middle, minutely denticulate and pilose. Head 
without spines ; antenne finely pilose, very elongate and slender, joint 1 fully five times as long as 2 and 
much shorter than 4, 2 very short, 3 one-half longer than 4, Pronotum with the membranous margins 
enormously dilated, rounded, vertical, and shell-like, widely reticulated ; hood large, oval, greatly raised, 
extending to the widdle of the disc and subangularly projecting in front; median carina foliaceous and 
enormously raised, forming a process larger than the hood, the outer carine not foliaceous, the interspaces 
closely punctured. Elytra long and divergent, widening from the base, and rounded at the tip ; discoidal 
area slightly raised, small, not one-third the length of the elytra, open behind, and rather widely 
reticulated ; subcostal area almost vertical, biseriate behind, uniseriate in front; costal area with five 
rows of areole at the middle, diminishing to two at the base, the areole (like those of the sutural area) 
moderately large and subequal. Rostrum about reaching the end of the metasternum. 
Length 4, breadth of the pronotum 13, of the apex of the elytra 2? millim. 
Hab. Panama, Bugaba (Champion). 
Two examples, one of which has unfortunately lost the head and pronotum. Differs 
from its allies in the greatly distended vertical, shell-like, concave membranous margins 
of the pronotum, small discoidal area, widely divergent elytra, and very long basal joint 
of the antenne. Viewed laterally, the pronotum appears to have four foliaceous 
appendages of about equal size, all of which are rounded at the summit. 
2. Leptostyla longipennis, n. sp. (Tab. I. figg. 16; 164, profile; 164, 
part of the body beneath.) 
Elongate, widening behind; body black, the integument whitish or pale testaceous and hyaline, the elytra 
with the nervures in the apical half, and also the transverse ones along the costal margin, and sometimes 
a spot on the discoidal area behind, fuscous or brownish ; the antenne testaceous, with the basal half of 
the first joint indeterminately fuscous, and the apical joint black; the legs testaceous, the apical joint of 
