HELENUS.—MIORRHYNCHUS. (65) 
1. Helenus hirsutus, n. sp. (Tab. V. fig. 16, ¢.) 
Subparallel and a little widened posteriorly (¢), oblong-ovate (@), nigro-fuscous or black, the second and 
third joints of the antenne at the base, and the basal halves of the tibie, more or less ferruginous; the 
surface sparsely clothed with very short, matted, decumbent, brownish-ochraceous hairs, with long, fine, 
scattered, pallid erect hairs intermixed. Head much longer than broad, comparatively small, rugose ; 
the apical process short, parallel, shortly bilobed at the tip, extending very little beyond the antenniferous 
processes, which are obtusely spiniform in front and slightly rounded externally ; the post-ocular portions 
short, rounded ; the eyes rounded and rather small, prominent; antennz with joints 1 and 3 subequal in 
length, 1 stout, rugose, extending to nearly three-fourths beyond the apical process of the head, villose, 
2 slightly longer than 4 and much shorter than 3, 4 a little more than half the length of 3, 2-4 with 
scattered hairs. Pronotum transverse, irregularly rugose and subgranulate, sinuate at the sides and 
much narrowed anteriorly, the base broadly and obliquely produced on each side behind, truncate opposite 
the scutellum ; the anterior portion rounded externally, constricted into a very short neck in front (in 
one specimen with prominent anterior angles), the two inner callosities flattened and narrowly separated ; 
the posterior portion very broad, rounded at the sides anteriorly and parallel behind, the sculpture 
consisting of short, transverse, sinuous, interrupted ruge. Scutellum transversely rugose. Corium 
granulate, parallel and not wider than the pronotum externally, rounded at the apex, and arcuate- 
emarginate within. Membrane with irregular anastomosing nervures. Abdomen a little rounded at the 
sides in the female, more parallel in the male, truncate at the apex; connexivum sparsely punctured, 
the outer apical angles of segments 1-4 slightly projecting, that of the fifth segment rounded; the sixth 
segment abruptly and obliquely narrowed, subangularly dilated at the middle in the male; genital lobes 
short and stout; spiracles placed near the outer margin, those on the fifth and sixth segments marginal. 
Beneath rugose, the meso- and metasternum depressed along the middle. Legs sparsely villose, the 
femora stout and rugose. 
Length 84-9, breadth 33-4 millim. (¢ ?.) 
Hab, Panama, Bugaba (Champion). 
It is possible that this insect may be inseparable from H. hesiformis, Buch. White 
(the type, ¢, of which I have not seen), but the Amazonian species is described as 
ferruginous in colour, and strongly villose and setose, with the apical process of the 
head unarmed ; it would also appear to have a much deeper groove along the sternum 
and venter. 
MIORRHYNCHUS, n. gen. 
Head subquadrate, longer than broad, with a stout, subconical, slightly declivous, unemarginate apical process 
and short, spiniform, parallel, antenniferous processes, the post-ocular portions a little longer than the 
small, prominent eyes; antenne much longer than the head and pronotum united, joint 1 elongate, 
extending to about three-fourths beyond the apical process of the head, 2 one-half the length of 3, 
3 slightly longer than 1, 4 very short, much shorter than 2, 1 moderately stout, 2-4 slender, 4 piriform, 
1 and 2 hirsute, 4 pilose at the tip; rostrum short, reaching the base of the head. Pronotum moderately 
transverse, subtruncate at the base, the sides constricted at the middle; the anterior portion much 
narrower than the posterior portion, abruptly constricted in front into a narrow neck, the disc occupied 
by four suboval, flattened callosities ; the posterior portion granulate. Scutellum triangular, obsoletely 
carinate down the middle. Elytra reaching the terminal genital segment ; corium extending to a little 
beyond the first segment, emarginate within; membrane with irregular, anastomosing, rather prominent 
nervures. Connexivum broad, the margins entire, the fifth and sixth segments (¢) produced at their 
outer apical angles. Terminal genital segment (dg) very convex, flattened above, cordate, as long as 
broad, the genital lobes rather elongate. Intermediate coxe a little more widely separated than the 
hind coxe. Venter flattened ; the spiracleg placed close to the outer margin, those on the fifth and sixth 
segments marginal. Legs long and slender; the femora moderately thickened, asperate, and hirsute. 
10* 
