AETEMATOPUS. 589 



stripe is very broad throughout, in the others it becomes narrower and evanescent 

 behind. 



3. Artematopus scapularis. (Tab. XXVI. fig. 6.) 



Oblong-oval, convex, shining ; obscure testaceous, the sides of the prothorax flavo-testaceous, the elytra without 

 about the apical half brownish-black, this colour extending forwards on the disc of each elytron and joining 

 a large black humeral patch (leaving a space at the sides of the ground-colour), the antenna? and the body 

 beneath ferruginous, the legs ferrugineo-testaceous ; sparsely clothed with yellowish-cinereous pubescence, 

 the upper surface with long erect hairs intermixed. Head sparsely, finely punctate ; antennae reaching 

 to about the middle of the elytra, filiform, tapering a little towards the tip, joint 3 twice as long as 2, and 

 half the length of 4, all the joints sparsely clothed with long fine hairs. Prothorax strongly transverse, 

 moderately convex, slightly explanate at the sides, the latter very gradually converging from the base 

 forwards, the apex feebly emarginate on either side ; the surface very sparsely, finely punctate, the 

 punctuation becoming still sparser at the sides, with a smooth slightly raised median line. Elytra 

 moderately long, narrowing from the middle, obtuse at the apex; punctate-striate, the striae very coarsely 

 punctured and deep at the sides, and more finely punctured and shallower on the disc, the punctures not 

 very closely placed ; the interstices convex at the sides and almost flat on the disc, very sparsely, minutely 

 punctate, and here and there transversely wrinkled. 

 Length 6, breadth 3| millim. 



Hab. Panama, Volcan de Chiriqui 4000 feet (Champion). 



One example, its sex not ascertained. Allied to A. obliquus, but differing from it in 

 the more finely and more sparsely punctured thorax, as well as in the colour of 

 the elytra. 



4. Artematopus puncticollis. 



cJ . Oblong-oval, convex, moderately shining ; piceous or reddish-brown, the prothorax darker, the elytra 

 usually with the suture more or less and the sides below the humeri black, the antennae and legs 

 ferruginous or fusco-ferruginous ; thickly clothed with yellowish-cinereous pubescence, the upper surface 

 with long erect hairs intermixed. Head densely, finely punctate ; antennae slender, extremely elongate, 

 as long as or longer than the body, joints 2 and 3 very small, equal, 4 more than twice the length of 

 2 and 3 united, the joints 4-10 slightly concave without, and distinctly dilated at the apex within, all 

 clothed with long fine hairs. Prothorax strongly transverse, convex, gradually narrowing from the base 

 forwards, the apex feebly emarginate on either side ; the surface densely, somewhat coarsely punctate. 

 Elytra moderately long, narrowing from the middle, obtuse at the apex ; punctate-striate, the striae very 

 coarsely punctured and deep at the sides, and finely punctured and shallow on the disc, the punctures 

 not very closely placed ; the interstices convex at the sides, almost flat on the disc, sparsely, finely 

 punctate and also transversely rugulose. 



5 . Oval ; antennae about reaching to the middle of the elytra, joint 3 nearly twice as long as 2. 



Length 4|-8, breadth 2^-4§ millim. 



Hab. Panama, San Feliz and Tole in Chiriqui (Champion). 



Nine males and three females, varying enormously in size, all from the low savana- 

 region bordering the Pacific Ocean. It differs from the other allied Central-American 

 species with a very small third antennal joint in the male in having the thorax densely 

 punctured. There can be no doubt that the males and females described belong to one 

 and the same species, as both sexes were found in each locality. A. caniceps, Kirsch, 

 from Bogota, appears to be closely allied to A. puncticollis. 



