ANCHASTUS. 395 



closely and finely, the presternum and propleuree sparsely, punctate ; prosternal sutures not channelled 

 in front. 

 Length 9§-10, breadth 3 millim. 



Ilab. Panama, Bugaba (Champion). 



Two specimens, probably males. This insect is a close ally of A. candezei, Steinh., 

 from Canoas, Colombia, the type ( d ) of which is before me, but differs from it in the 

 shorter and more oval elytra, with the flavous stripe on the third interstice abbreviated 

 and the strige more coarsely punctured, the rufo-testaceous head, the more feebly 

 carinate hind angles of the thorax, the much shorter antennas, the blacker under 

 surface (in A. candezei the fifth ventral segment only is black), &c. 



9. Anchastus maculicollis, (Tab. XVII. fig. 22, $ .) 



Moderately elongate, rather convex, slightly shining ; black, the head obscure testaceous in front ; the prothorax 

 with the sides from the base to near the apex very broadly rufo-testaceous (leaving a large subtriangular 

 black patch on the anterior part of the disc, extending laterally to near the margin, and posteriorly, 

 in the form of a median vitta, to the base), and the anterior margin and hind angles flavo-testaceous ; 

 the elytra each with two narrow fusco-testaceous stripes extending downwards from the base — one on 

 the third interstice, short, and another on the ninth interstice, extending to near the middle; beneath 

 rufo-testaceous, the metasternum broadly black at the sides, the presternum yellow ; the antenna? and legs, 

 the base of the femora excepted, deep black ; above and beneath thickly pubescent, the pubescence yellowish 

 beneath and on the light- coloured parts of the prothorax above, for the rest blackish-brown. Head 

 closely, finely punctate, convex, declivous in front ; the front separated from the anterior margin by a 

 narrow space, the carina distinct at the sides only ; antenna? ( $ ) short, not extending beyond the hind 

 angles of the prothorax, the joints from the third rather broadly widened and serrate, 3 and 4 equal in 

 length, 2 very small. Prothorax broader than long, narrowing from the base forwards, the sides a little 

 rounded anteriorly ; the hind angles strongly produced, acute, slightly divergent, feebly and obliquely 

 unicarinate ; the surface closely, finely punctate, canaliculate behind. Elytra moderately long, subparallel 

 to about the middle and arcuately narrowing thence to the apex, the apices separately rounded ; deeply 

 punctate-striate, the punctures of each stria very distinct and closely placed, the interstices flat on the 

 disc, feebly convex at the sides, finely and closely punctate. Beneath closely and finely, the presternum 

 and propleurse sparsely, punctate ; prosternal sutures not channelled in front. 



Length 8|, breadth nearly 2| millim. ( $ .) 



Ilab. Panama, Volcan de Chiriqui 2500 feet (Champion). 



One example. This insect is nearly allied to A. seminiger, and I thought, at first, it 

 might be a variety of the female of that species, but, judging from the sexual differences 

 in the other members of the genus, such is evidently not the case. It has a shorter 

 thorax, with more acute hind angles, more parallel elytra, &c. 



10. Anchastus bilineatus, (Tab. XVII. fig. 23.) 



Moderately elongate, rather convex, shining; the head with a large triangular flavous frontal patch ex- 

 tending to the margin, black at the sides behind ; the prothorax flavous, with a broad black median vitta 

 extending from the base to near the apex, narrowly divided down the middle in front and with each 

 portion curving outwards to the lateral margin (so as to form a large reversed subcampanuliform patch), 

 the flavous lateral portions marked with a rosy-red patch in fresh specimens ; the scutellum and elytra 

 black, the latter with a rather broad flavous stripe extending down the third and fourth interstices to 

 near the apex, and the ninth interstice with a short testaceous stripe at the base ; beneath flavous or 



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