18 HEMIPTERA-HETEROPTERA. 
spines ; antennse very long and slender, joint 1 three times the length of 2, 2 very short, 4 very much 
longer than 1. Pronotum with the membranous margins moderately wide, recurved, and converging 
forwards, with two irregular rows of small areole; hood small and short, somewhat compressed, sub- 
angular (if viewed in profile); the three carine long and feebly foliaceous, the interspaces closely punc- 
tured. Elytra very long and narrow, gradually widening from the base, rounded at the tip; discoidal 
area somewhat fusiform, rather short, closely reticulated ; subcostal area very long and narrow, biseriate ; 
costal area with two rows of areole; the areole in the apical part of the sutural area very unequal in 
size, two of the inner ones being very large and pentagonal. Legs very long and slender. 
Length 3, breadth 1} millim. 
Hab. Guatema.a, San Gerénimo (Champion). 
One example. A small, narrow, elongate species, the elytra gradually widening 
from the base; the costal area with two rows of areolw, the nervures fuscous along the 
suture and towards the apex. 
11. Leptostyla tenuis, n. sp. (Tab. I. figg. 25; 254, profile; 256, part of 
the body beneath.) 
Elongate, very narrow ; body black, the integument whitish and hyaline; the elytra usually with a small spot 
ou the discoidal area behind, and the nervures in the apical third, testaceous; the antenne testaceous, 
with the basal (except at the tip) and apical joints black ; the legs testaceous, the apical joint of the tarsi 
infuscate. Head with five long slender spines; antenne long and slender, joint 1 about three times as 
long as 2 and shorter than 4, 2 very short. Pronotum with the membranous margins moderately wide, 
recurved, converging from the base forwards, forming a rather prominent angle in front, and with two 
rows of areole ; hood short and small, somewhat compressed, angularly projecting over the base of the 
head; the three carine feebly foliaceous, the interspaces closely punctured; the posterior triangular 
portion membranous. Elytra long and narrow, when closed not or scarcely wider than the pronotum, 
rounded at the tip; discoidal area long and subfusiform, nearly reaching the middle, closely reticulated ; 
subcostal area very long and narrow, biseriate throughout; costal area with two rows of areole to the 
base ; the areole in the apical part of the sutural area very unequal in size. Rostrum nearly reaching 
the end of the metasternum. 
Length 23, breadth 1 millim. 
Hab. Guatema.a, Zapote, Capetillo, and Guatemala city (Champion). 
Numerous examples. Differs from the allied forms in the very narrow elytra, these 
when closed being of about the same width as the pronotum. The pronotal hood is 
small and somewhat compressed. L. tenuis approaches L. angustata, but has less 
elongate elytra, these (when closed) being much narrower at the tip; the antenne and 
legs much shorter, &c. A single damaged, discoloured specimen from Duefias, 
Guatemala, perhaps belongs here: it has the basal joint of the antenne pale; the 
elytra longer, with the nervures brownish, and the costal area with a single row of 
areole towards the base. 
12. Leptostyla dilaticollis, n. sp. (Tab. II. figg. 2; 24, profile.) 
Moderately elongate, rather broad; body black, the integument testaceous and partly hyaline, the elytra with 
a narrow oblique fascia extending from the median nervure beyond the middle to the apex, widening 
outwards, a small spot on the discoidal area behind, and a narrow curved streak on the subcostal area, 
nigro-fuscous ; the nervures of the pronotal hood fuscous; the antenns testaceous, the basal joint infus- 
cate, except at the tip (the apical joint broken off); the legs testaceous, the tips of the tarsi infuscate. 
Head with two very short, slender, converging frontal spines; antenne long and slender, joint 1 about 
