CHRYXUS.—PNIRONTIS. 181. 
CHRYXUS, n. gen. 
Head transverse, abruptly declivous in front, convex behind, longitudinally sulcate down the middle, and 
with a transverse interocular groove, the gene placed below the eyes and not visible from above; the 
post-ocular portions rounded externally and shorter than the eyes; antenniferous tubercles small, 
not prominent; eyes coarsely faceted, rounded, occupying the whole of the sides of the head in front; 
antenne inserted close to the eyes, joint 1 rather stout, not longer than the head, 2 more slender than, 
and twice as long as, 1, 3 and 4 very slender, 3 shorter, and 4 a little longer, than 2; rostrum very 
stout, short, joints 1 and 2 subequal in length, 3 short and triangular. Pronotum broader than long, 
deeply sulcate down the middle, the lobes separated by a deep transverse groove; the anterior lobe 
shorter than the posterior lobe and about as wide as the head with the eyes; the posterior lobe broad, 
rapidly and obliquely narrowing forwards and unemarginate behind; the hind angles swollen, rounded. 
Scutellum armed at the apex with a short, stout, semierect, spiniform process. Elytra ample, reaching 
the apex of the abdomen ; corium coriaceous, sharply and obliquely separated from the membrane; the 
latter largely developed, with one very large cell extending from the base to more than half its length, 
the nervures enclosing it uniting posteriorly and one of them extending thence to the apex. Abdomen 
rounded at the sides, the connexivum extending outwards to some distance beyond the elytra. Anterior 
cox moderately prominent, contiguous. Legs rather short, moderately stout, the anterior femora 
unarmed and feebly incrassate, the tarsi 3-jointed. Body obovate, depressed, tomentose. . 
1. Chryxus tomentosus, n. sp. (Tab. XI. figg. 9, 9a, 3.) 
do. Moderately elongate, rather broad, shining ; black, the anterior lobe of the pronotum and the scutellum 
partly piceous ; the corium flavous, with nearly the apical half nigro-piceous; the clavus with the basal 
half piceous and the rest flavous; the membrane whitish, with a large oval spot in the cell and a broad 
lunate patch at the apex nigro-fuscous; the connexivum in great part flavous, the apex only of each 
segment black ; the antenne with joints 1 and 2 ochreous, and the others fuscous; the legs (including 
the cox) ochreous; the body, legs, eyes, antenne, corium, and clavus somewhat thickly clothed with 
very long, fine, erect, pallid hairs, the hairs on the body and elytra arising from very minute punctures. 
Antenne rather more than half the length of the body. Pronotum strongly constricted at the sides; the 
anterior lobe obliquely wrinkled on each side of the median groove; the posterior lobe broadly depressed 
in the middle, and also depressed on each side near the hind angles, the median groove sharply defined ; 
the anterior angles unarmed. 
Length 5, breadth 2 millim. (<¢.) 
Hab. Panama, David in Chiriqui (Champion). 
Two males, both in a perfect state of preservation. 
Subfam. STENOPODINA. 
This subfamily of Reduviide is chiefly characterized by the thickened, porrect basal 
joint of the antenne, the other joints being very slender and folding longitudinally 
backwards beneath the head and first antennal joint, and by the presence of a sharply 
defined discal area on the elytra. In two of the Central-American forms the second and 
third joints of the anterior tarsi are more or less fused into one, but no importance 
can be attached to this character. 
PNIRONTIS. 
Pnirontis, Stal, Ofv. Vet.-Ak. Férh. xvi. p. 381 (1859); Hemipt. Afr. iii. p. 149; Hemipt. Fabr. 
i, p. 126; Enum. Hemipt. ii. p. 120. 
Centromelus, Fieber, Europ. Hemipt. pp. 42, 151 (1861). 
