BRACHYRRHYNCHUS. 99 
the sides rounded anteriorly and parallel behind; the margins crenulate. Scutellum transversely 
rugose, raised along the middle, and with a small tubercle on each side in front. Corium slightly 
emarginate on the inner side, rounded at the apex. Membrane with irregularly anastomosing 
nervures. Connexivum moderately broad, narrowing from the base of the fifth segment; the sixth 
segment transversely swollen in the middle, abruptly narrowed, feebly emarginate at the apex, leaving 
the first genital segment narrowly exposed, the latter with two short lobes. Beneath, the sides and 
genital segments excepted, smooth and shining, the ventral segments each with a row of granules along 
the anterior margin, the venter moderately convex. Rostrum reaching the front of the prosternum. 
Length 82-9, breadth 33-33 millim. 
Hab. Panama, Volcan de Chiriqui 3000 feet (Champion). 
Five examples. The smooth, shining under surface, the sides and genital segments 
excepted, separates this species at once from its allies. The membrane is black. 
8. Brachyrrhynchus sinuatus, n. sp. (Tab. VI. fig. 26, 2.) 
2. Oblong-ovate, broad, nigro-piceous, the apical half of the terminal joint of the antenne and the coxe 
ochraceous, the basal half of the pronotum fusco-ferruginous, the tarsi and the smooth callosities on the 
abdomen ferruginous; the membrane fuscous; the upper surface granulate, the connexivum finely 
punctate, and sparsely clothed with short, curled, rusty-brown hairs; the under surface rugulose and 
very sparsely pubescent, the ventral segments each with a small, smooth, dull spot in the middle; the 
abdomen above and beneath with scattered irregular series of smooth shining callosities. Head (exclusive 
of the apical process) transverse, somewhat rounded at the base, armed with a short tooth on each side 
behind the eyes; the apical process subconical, nearly reaching the apex of the first antennal joint, 
slightly emarginate at the tip; the spiniform antenniferous processes short, stout, divergent; antenne 
slender, joint 2 a little shorter than 1, 3 one-half longer than 2 and a little longer than 1, 4 slightly longer 
than 2, stout and piriform. Pronotum feebly emarginate at the base, strongly sinuate at the sides, and 
emarginate in front; the anterior portion dilated on each side into a broadly rounded, raised, anteriorly 
projecting lobe, the two inner callosities each with ashort ridge; the posterior portion much wider than the 
anterior portion, rounded at the sides anteriorly and subparallel behind. Scutellum transversely wrinkled. 
Corium rounded at the apex. Connexivum broad, narrowing from the base of the fifth segment; the sixth 
segment hollowed at the sides anteriorly, broadly and shallowly emarginate at the apex, leaving the first 
genital segment narrowly exposed, the latter with two broad, rounded, prominent lobes. Venter somewhat 
convex. Rostrum reaching the front of the prosternum. JF emora asperate. 
Length 9, breadth 43 millim. 
Hab. Mexico, Xucumanatlan in Guerrero 7000 feet (H. H. Smith). 
One specimen. Easily separable from its allies by the distinctly sinuate sides of the 
sixth connexival segment, and the conspicuous irregular series of smooth, ferruginous, 
shining callosities on the upper and under sides of the abdomen. 
4, Brachyrrhynchus handlirschi, (Tab. VI. fig. 27, ¢ .) 
Brachyrrhynchus handlirschi, Bergr. Bull. Mus. Paris, 1898, no. 8, p. 150 (g ¢)". 
Oblong-ovate, broad, subglabrous, fuscous or ferrugineo-fuscous; almost covered above and beneath, the 
corium excepted, with a thin ochraceous or greyish-ochraceous incrustation, the connexivum and the 
exposed sides of the abdominal dorsum spotted with black or fuscous; the membrane lurid, with fuscous 
nervures; the legs and antenne finely pubescent. Head subquadrate, granulate along the middle, 
transversely wrinkled at the sides; the apical process broad, reaching the middle of the first antennal 
joint, feebly bilobed at the tip; the antenniferous processes stout, terminating in a very short spine in 
front, subparallel ; the post-ocular portions short, dilated laterally into a short spine; antenne rather 
