AETEMATOPTTS. 591 



sometimes darker; thickly clothed with yellowish- cinereous pubescence, the upper surface with long erect 

 hairs intermixed. Head densely, coarsely punctate : antennae slender, longer than the body, joints 

 2 and 3 very small, subequal, the joints 4-10 concave without and dilated at the apex within, all clothed 

 with long fine hairs. Prothorax strongly transverse, convex, rounded at the sides, narrowing from a 

 little before the base to the apex (usually appearing slightly narrowed behind), the apex feebly emarginate 

 on either side ; the surface thickly, coarsely punctate, with indications of a smooth raised median line at 

 the base. Scutellum closely punctured, and sometimes obsoletely carinate. Elytra moderately long, 

 narrowing from about the middle, obtuse at the apex : punctate-striate, the striae very coarsely punctured 

 and deep at the sides, and shallow and more finely punctured on the disc; the interstices convex, 

 flatter on the disc, very distinctly punctured, and also transversely wrinkled. Beneath very sparsely 

 punctured. 



$ . Antennae reaching to a little beyond the middle of the elytra, joint 3 twice as long as 2. 



Length 4j-7j, breadth 2|-3| millim. 



Hob. Nicaeagua, Chontales {Belt, Janson) ; Panama, Bugaba {Champion). 



Found in abundance at Bugaba. More elongate and narrower than A. jpuncticollis, 

 the thorax more rounded at the sides, less densely punctured, and more shining, the 

 elytra more coarsely punctate-striate on the disc, and with the interstitial punctures 

 coarser. More parallel than A. rufescens, with the thorax more rounded at the sides, 

 and much more coarsely and closely punctured, the interstitial punctuation of the 

 elytra not so fine. A. rotnndicollis approaches A. bogotanus, Kirsch, from Bogota; 

 but it has the thorax and the elytral striae much more coarsely punctured, and the 

 elytra with convex interstices. 



8. Artematopus seticornis. (Tab. XXVI. figg. 5, <3 ; 5 a, antenna.) 



S . Oval, very convex, shining ; piceous or reddish-brown, the scutellum and the elytra with the suture to 

 beyond the middle broadly and indeterminately, and usually the sides also, black, the sutural stripe some- 

 times narrower and sometimes greatly extended ; the antennae ferruginous, the legs ferruginous or obscure 

 testaceous, the tibiae sometimes darker ; sparsely clothed with yellowish-cinereous pubescence, the upper 

 surface with long erect hairs intermixed. Head very broad, densely, coarsely punctate ; antennae slender, 

 longer than the body, joints 2 and 3 very small, equal, 4 five times as long as 3, 4-10 slightly dilated at 

 the apex within, all clothed with very long, projecting bristly hairs. Prothorax very convex, strongly 

 transverse, rounded at the sides, the latter converging from about the basal third forwards, the base 

 distinctly emarginate in front of the scutellum, the apex rather deeply emarginate on either side ; the 

 surface thickly, rather coarsely punctate, and sometimes obsoletely canaliculate in front. Elytra 

 comparatively short, narrowing from about the middle, truncate at the apex; punctate-striate, the 

 striae very coarsely punctured and deep at the sides, and more finely punctured and shallow on the 

 disc; the interstices convex, flatter on the disc, minutely, uniseriate-punctate, and also transversely 

 wrinkled. Beneath very sparsely punctured. 



Length 3§-4±, breadth 2-2± millim. 



Hah. Panama, Bugaba {Champion). 



Eight examples, all males. Differs from all the other Central- American species in 

 its short form and very convex thorax, as well as in the very long bristly hairs on the 

 joints of the antenna?, these hairs being very conspicuous, and nearly as long as the 

 erect ones on the elytra, resembling those of a bottle-brush. The antennal joints 

 4-10 are nearly straight on their outer edge. The thorax is distinctly emarginate in 



