GARGAPHTA.—LEPTOSTYLA. 11 
pronotum and the nervures on the basal half of the elytra set with erect hairs. Head with five slender 
spines; antenne with joint 1 about twice as long as 2. Pronotum with the membranous margins raised 
and moderately wide, subangularly dilated before the base, and rapidly and obliquely converging thence 
to the apex, with two rows of areole; hood small, oval, slightly projecting in front; the three carinz 
moderately foliaceous, the interspaces closely punctured; the triangular posterior portion membranous 
and reticulated. Elytra extending to far beyond the abdomen, oblong-oval, slightly constricted at the 
middle, broadly rounded at the apex; discoidal and subcostal areas closely reticulated, the discoidal area 
not reaching the middle, the subcostal area triseriate; costal area with two rows of large, mostly 
tetragonal areole, increasing to three in the widest part and diminishing to one at the tip; sutural 
area (the inner basal portion excepted) with large areola. | 
Length 31, breadth 13 millim, 
Hab. Nort Mexico, Juarez on the Rio Grande, opposite El Paso (Cockerel?). 
We are indebted to Mr. Cockerell for a specimen of this species. It cannot be 
identified with any of the described North-American forms. Tingis (Gargaphia) tilie, 
Walsh, is perhaps an allied insect. 
LEPTOSTYLA. 
Leptostyla, Stal, Enum. Hemipt. i. pp. 120, 125 (1873). 
Numerous Central-American species are referred to this genus *, but the characters 
given by Stal require amplification to include them: the basal joint of the antenne 
varies in length from about two to five times that of the second, the pronotal hood is 
sometimes very large, and the membranous margins of the pronotum are sometimes 
very broad, according to the species. The antenne are long and slender, with a more 
or less elongate basal joint, and a still longer fourth joint. The pronotum is tri- 
carinate, except in L. tumida. The elytra are gradually widened at the base, extending 
to far beyond the apex of the abdomen; the costal and sutural areas are more or less 
widely reticulated. the reticulation of the latter usually being very unequal towards the 
tip; the median nervure is strongly sinuate; the discoidal area is flat, sometimes 
slightly raised, and does not reach the middle, it being quite short in L. vesiculosa ; 
the subcostal area (costal of Stal) is sometimes very narrow, with one or two rows of 
areole only, and sometimes nearly as broad as the discoidal, with three or four rows 
(as described by Stal) of closely packed small areole ; the membranous costal area has 
two or more series of areole. ‘The rostral groove is uninterrupted. The rostrum 
extends to the meso-metasternal suture in most of the species, sometimes shorter 
(L. longipennis) or longer (L. tenuis). The wings do not extend beyond the abdomen 
in any of the specimens examined. 
a. Antenne with joint 1 five times as long as 2. Pronotum with the 
membranous margins greatly dilated, vertical, and shell-like, the 
median carina strongly foliaceous, the hood large; elytra long and 
* The description of an additional Mexican species is inserted on p. 48: the insect was not seen till these 
pages were in type. 
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