550 SEBBICOBNIA. 



1. Microglyphonyx COarctatUS. (Tab. XXIII. figg. 33 ; 33 a, underside of 

 pro thorax.) 



Bather short, narrow, shining ; piceous, with the anterior margin and the hind angles or hase of the prothorax, 

 the elytra, the presternum, and the apex of the abdomen testaceous (the elytra sometimes with the suture 

 and a patch at the sides slightly darker), or entirely testaceous ; the antennas brown, with the two basal 

 joints testaceous, the legs flavo-testaceous ; thickly clothed with pale yellowish-cinereous pubescence. 

 Head finely and rather closely punctate ; antennas fully half the length of the body in the male, a little 

 shorter in the female. Prothorax strongly transverse, convex in front, broadest before the middle, con- 

 stricted and slightly sinuate at the sides behind, the latter rounded in front, the hind angles not divergent ; 

 the surface closely, finely punctate. Elytra about two and one-half times the length of the prothorax, 

 and at the middle wider than it, oval, convex ; coarsely punctate-striate, the interstices convex and very 

 sparsely punctured. Prosternum and propleuras sparsely, coarsely punctate, the rest of the under surface 

 more closely and more finely punctured. 



Length 2-2\, breadth f-g millim. ( J ? .) 



Hab. Panama, Volcan de Chiriqui 8000 feet (Champion). 

 Nine examples. 



Group CAMPYLINI. 



CYLINDRODERUS. 



Cylindroderus, Eschscholtz, in Silb. Rev. Ent. iv. tab. (1836) ; Candeze, Monogr. Elat. iv. p. 503. 

 An American genus containing eight named species, one of which is from Mexico, 

 the others being from various parts of the South-American continent ; an additional 

 species from Guatemala is described below. 



1. Cylindroderus mexicanus. 



Cylindroderus mexicanus, Cand. Monogr. Elat. iv. p. 506 \ 



Hab. Mexico, Cordova, Toxpam, Vera Cruz (Salle x ), Teapa in Tabasco (II. H. Smith). 



The type of this species is a male. The female has much shorter antennse, and the 

 thorax broader behind the middle, with the marginal carina distinct to near the 

 apex. The single specimen from Vera Cruz has the head and thorax ferruginous 

 and the elytra piceous. The example from Cordova was placed with Aptopus campy- 

 linus in the Salle collection. 



2. Cylindroderus cribricollis. (Tab. XXIV. fig. 2, s .) 



tf . Elongate, narrow, rather dull ; reddish-brown or brownish-testaceous, the base of the head and the suture 

 of the elytra sometimes infuscate, the antennas brown or ferruginous, the legs brownish, with the tibiae 

 usually infuscate, the rnetasternum and abdomen piceous or fusco-ferrugiuous ; somewhat thickly clothed 

 with long fulvo-cinereous hairs, those on the upper surface semierect. Head densely and very coarsely 

 umbilicate-punctate ; antennas nearly two-thirds the length of the body, joints 2 and 3 very short, sub- 

 equal, the two together not so long as 4, the following joints very elongate and considerably widened. 

 Prothorax as long as broad, subquadrate, the sides feebly sinuate behind, not margined ; the hind angles 

 moderately produced and slightly divergent, carinate laterally : the surface very coarsely, closely umbili- 

 cate-punctate, with a more or less distinct narrow space down the middle impunctate. Elytra nearly 



