160 HEMIPTERA-HETEROPTERA. 
1. Henicocephalus concolor, n. sp. (Tab. X. fig. 1.) 
Shortly pilose, dull, rather robust, fuscous, the rostrum and the abdomen more or less ochraceous, the latter 
with the sides reddish, the legs uniformly fuscous or fusco-testaceous. Posterior lobe of the head very 
convex, transverse, finely suleate down the middle, extending outwards as far as the eyes, the ocelli 
very small; antenne rather short, joints 1 and 2 much stouter than the others, the latter very slender, 
2-4 subequal in length. Pronotum with a short collar in front; the intermediate lobe moderately 
convex, much narrower than the posterior lobe, but equalling it in length, rounded at the sides, with a 
deep transverse groove in the middle behind and a short longitudinal sulcus on each side posteriorly ; the 
posterior lobe somewhat flattened on the disc, rounded at the sides, deeply emarginate behind. Scutellum 
longitudinally convex at the apex. Anterior iegs very stout, the tarsi with two long divergent claws. 
Length 4 millim. , 
Hab. Guatema.a, near the city (Champion); Panama, Volcan de Chiriqui (Champion). 
Two specimens. In this species the two basal joints of the antenne are con- 
spicuously stouter than the others, these latter being very slender; the pilosity of the 
head and pronotum is comparatively short; the pronotum is deeply emarginate at the 
base and has a deep transverse groove on the disc of the intermediate lobe; the legs 
are rather stout, the anterior pair greatly thickened; and the ocelli are very small. 
H. rhyparus, Stal, from Rio Janeiro, is an allied form. 
2. Henicocephalus annulipes, n. sp. (Lab. X. fig. 2.) 
Sparsely pilose, dull, nigro-fuscous, the base of the elytra, the abdomen in part, the apical joint of the 
antenne, the cox, knees, and anterior tarsi more or less ochraceous. Posterior lobe of the head very 
convex, broader than long, finely suleate down the middle, extending outwards as far as the eyes, the 
ocelli prominent; antenne moderately long, joints 3 and 4 slender, 1 and 2 stouter, 2 and 3 subequal in 
length, 4 a little shorter than 3.  Pronotum with a short collar in front; the intermediate lobe 
moderately convex, much narrower than the posterior lobe, but equalling it in length, rounded at the 
sides, deeply sulcate down the middle and with a short longitudinal sulcus on each side behind, the 
median sulcus terminating posteriorly in a deep transverse groove; the posterior lobe rounded at the 
sides and moderately emarginate behind. Scutellum longitudinally carinate at the apex. Anterior legs 
with the femora moderately incrassate, the tibie strongly dilated outwards, and the tarsi with two long 
slender approximate claws. . 
Length 4 millim. 
Hab. Panama, Volcan de Chiriqui 3000 feet (Champion). 
Two examples. Narrower and less robust than H. concolor, the two basal joints of 
the antenne relatively more slender, the posterior lobe of the head less transverse, the 
ocelli more prominent, the pronotum not so deeply emarginate behind, the knees 
pale, the hairs on the head and pronotum longer. The anterior tarsal claws are so 
closely placed that at first sight one only is visible. 
3. Henicocephaius pilosus, n. sp. (Tab. X. fig. 3.) 
Thickly pilose, dull, fusco-ferruginous, the antennx, rostrum, abdomen, and legs flavo-testaceous, the elytra 
brownish -hyaline. Posterior lobe of the head very convex, transverse, extending outwards to fully as far 
as the eyes, obsoletely sulcate down the middle behind, the ocelli very small; antenne comparatively 
elongate, reaching to a little beyond the shoulders of the pronotum, joints 1 and 2 slightly stouter than 
the others, 1 short, 2-4 subequal in length. Pronotum with a short collar in front; the intermediate 
