ATKACTOSOMUS.— ANOPLISCHIOPSIS. 301 



Anoplischius, the sides of the mesosternum being triangularly raised in front only, but 

 it seems best placed here. A. curticollis somewhat resembles Anoplischius foveifrons 

 and A. transversus, but has the thorax more narrowed anteriorly, and with the carina 

 of the hind angles shorter and more oblique, the third joint of the antennae small, the 

 eyes larger and more approximate, &c. ; the prosternal process, viewed laterally, appears 

 to be strongly and sharply bifurcate. 



ANOPLISCHIOPSIS. 



Head convex, short, deeply sunk into the prothorax, with a moderately prominent frontal carina ; eyes small, 

 finely hut distinctly granulated; apical joint of the maxillary palpi narrow, oval, obliquely truncate at 

 the tip ; antennae in both sexes rather short, not exceeding half the length of the body, joint 3 not, or 

 very little, wider than 2, shorter than 4, 4-10 triangular, 11 oval ; prosternum declivous behind the 

 anterior coxse, the process moderately long, flattened, and subhorizontal, without tooth before the apex ; 

 prosternal sutures sinuous, excavate in front ; mesosternum declivous and depressed, the sides of the 

 cavity not raised ; posterior coxal plates moderately wide inwards, not or feebly subangularly dilated 

 above the point of insertion of the femora, rapidly and obliquely narrowing outwards ; legs moderately 

 elongate, slender ; tarsi with joints 2 and 3 lamellate beneath, 4 small ; claws simple. 



This genus includes Ischiodontus crocicollis, Cand., from Colombia (which has the 

 coxal plates subangularly widened opposite the point of insertion of the femora), and 

 the six species from Central America described below. It differs from Anqplischius in 

 having the prosternum declivous behind the anterior coxae, with the process flattened, 

 subhorizontal, and not toothed before the apex. The antennae in both sexes are 

 strongly serrate from the fourth joint. The notch on either side of the basal margin 

 of the thorax is shallow or almost obsolete. The lobe on the underside ,of the second 

 and third tarsal joints is long and narrow. 



The six Central- American species may be separated thus : — 



Prothorax testaceous ; elytra black, each with an oval flavo-testaceous spot on 



the disc at the base basimaculatus. 



Prothorax variable in colour ; elytra black, each with an attenuate vitta, not 



nearly reaching the apex, testaceous bivittatus. 



Prothorax testaceous, with a black median vitta ; elytra black, each with a very 



broad oblique vitta, and the outer limb, to near the apex, flavo-testaceous . flavovittatus. 



Prothorax testaceous, the head and elytra piceous fuscipennis. 



Prothorax and elytra testaceous, the former with a median vitta, and the latter 



with the suture broadly to beyond the middle, infuscate lineatocollis. 



Prothorax and elytra testaceous luteus. 



1. Anoplischiopsis basimaculatus. (Tab. XIII. fig. 16, $ .) 



Elongate, rather narrow, moderately convex, shining ; the head (the eyes excepted), prothorax, under surface, 

 and legs (the anterior coxae excepted) testaceous ; the elytra black, each with an oval flavo-testaceous 



.-''■ ^spbt on the disc at the base, the epipleuraa fuscous ; the antennae black, with the two basal joints testa- 

 ceous; the upper and under surfaces sparsely clothed with rather long hairs, which partake of the 



'>•• ; ground-colour. Head convex, densely, rather coarsely punctate, the frontal carina flexed downwards and 



