460 SEERICOENIA. 



6. Athous aztecus. 



Moderately elongate, narrow, slightly shining, finely puhescent ; pitchy-brown, the front of the head, the hind 

 angles of the prothorax, and the extreme base of the elytra obscure ferruginous; beneath piceous, 

 reddish-brown at the sides ; the antennae and legs testaceous. Head closely, somewhat coarsely punctate, 

 depressed in front ; the front prominent, broadly truncate at the apex ; the eyes large ; antennae rather 

 slender, extending to considerably beyond the humeri. Prothorax a little longer than broad, with the 

 sides slightly converging and feebly rounded in front and sinuate behind ; the hind angles moderately 

 produced, divergent, acute, and slightly recurved at the tip, and rather sharply carinate ; the surface 

 closely and somewhat finely punctured, the punctuation becoming a little more diffuse on the disc in front, 

 obsoletely canaliculate behind. Elytra two and three-fourths the length of the prothorax, and of about 

 the same width at the base, narrowing from a little before the middle to the apex, the apices rounded ; 

 punctate-striate, the interstices feebly convex and somewhat thickly punctured, granulate at the base. 

 Beneath, the propleuraa included, closely punctured. Third tarsal joint dilated and lamellate, the fourth 

 very small. 



Length 8f , breadth 2-2| millim. 



Hob. Mexico, Juquila in Oaxaca {Salle). 



Two examples, no doubt males. Allied to A. marcidus, but broader and duller, and 

 also differing from that insect in its larger eyes, the more prominent front, the closely 

 and much more distinctly punctured thorax, which is more rounded at the sides in 

 front and has shorter hind angles, the closely punctured under surface, &c. 



7. Athous rugipennis. (Tab. XX. fig. 14, 6 .) 



Moderately elongate, narrow, subopaque, somewhat thickly clothed with yellowish-cinereous pubescence, piceous 

 or pitchy-black, the head in front and the sides of the prothorax broadly pitchy-red, the head and 

 prothorax sometimes ferruginous or obscure rufous, and the latter with an abbreviated median vitta only 

 piceous ; beneath shining, piceous, the propleurae sometimes obscure rufous ; antennae pitchy-black, the 

 basal joint sometimes ferruginous ; legs pale testaceous, the tarsi and the apices of the tibiae infuscate 

 in one example. Head closely, moderately finely punctate, excavate in front ; the front prominent, 

 subtruncate in the middle at the apex ; the eyes moderately large ; antennae rather stout, about two-fifths 

 of the length of the body in the male, shorter in the female. Prothorax as long as broad, narrowing from 

 about the middle forwards, the sides rounded anteriorly and feebly sinuate behind ; the hind angles 

 moderately produced, acute, not or very slightly divergent, and not carinate ; the surface closely and 

 finely punctate throughout, and canaliculate before the base. Elytra three times the length of the 

 prothorax, and of the same width at the base, narrowing from a little before the middle to the apex, 

 the apices rounded ; deeply punctate-striate, the interstices rugose and rather convex. Beneath closely 

 punctured. Legs slender; third tarsal joint dilated and lamellate, the fourth very small. 



Length 6-6|, breadth If millim. ( <3 $ .) 



Hah. Guatemala, Purula in Vera Paz (Champion). 



Three examples. This small species differs greatly from the other Central- American 

 members of the genus. The colour of the head and thorax is variable, the rufous 

 colour predominating in two examples. Dr. Candeze has examined one of them, and 

 he suggests an affinity with Eudactylus; but I can find nothing to distinguish the 

 insect structurally from Athous mexicanus and its allies. 



