568 SEKKICOENIA. 



middle ; antenna moderately elongate, joint 3 twice as long as 2, 4 three times as long as 3, the joints 

 from the fourth almost parallel. Prothorax very short, twice as broad as long, rounded at the sides 

 anteriorly, with long, divergent, slender hind angles ; the surface thickly punctate, the punctures coarse 

 on the disc, finer at the sides. Scutellum densely punctured. Elytra rather more than three times the 

 length of the head and prothorax, and much wider than the latter, subparallel, narrowing a little behind, 

 moderately gibbous at the base and flattened on the disc, acutely margined at the sides ; obsoletely 

 sulcate, without trace of strise, and finely, somewhat thickly punctate, with numerous conspicuous scat- 

 tered coarse impressions towards the apex, the base distinctly grooved near the shoulder and also more 

 sparsely punctured. 

 Length 13|-15|, breadth 4|-5| millim. 



Hab. North America, 1 Texas 2 .— Mexico l ; Guatemala, Coban in Vera Paz (Conradt), 

 Sabo in Vera Paz ( Champion). 



The type of this species is contained in M. Rene Oberthiir's collection ; it is labelled 

 "Am. b., Gehin." The three specimens from Guatemala, from which the above descrip- 

 tion is taken, agree well with it. Dr. Horn's surmise (cf. Trans. Am. Ent. Soc. ix. 

 p. 383) that the insect is probably Mexican is no doubt correct. S. gehini approaches 

 S. brevicollis, but it is narrower and more parallel; the eyes are larger and more 

 prominent ; the hairs on the head and thorax are shorter and entirely fuscous ; the 

 antenna? are more slender ; and the elytra are more finely punctured and obsoletely 

 sulcate, without trace of stria?. The short thorax, subparallel elytra, &c, distinguish 

 it from S. candezei. The type is figured. 



19. Scaptolenus ruficornis. (Tab. XXV. fig. 17, a .) 



J . Scaptolenus ruficornis, Chevr. Ann. Soc. Ent. Fr. 1874, pp. 509, 522 l . 

 Hab. Mexico {coll. Oberthur, ex de Bonvouloir *). 



There are two specimens of this species in M. Rene Oberthiir's collection, from that 

 of de Bonvouloir, one of which is marked " type." 



In this insect the moderately long villosity of the head, thorax, scutellar region, and 

 breast is fuscous ; the maxillary palpi are elongate, with the apical two joints equal 

 in length ; the mandibles are short; the thorax is very short, about twice as broad 

 as long, and not much narrower than the elytra ; and the elytra are elongate and 

 subparallel, obsoletely sulcate, with indications of faint striae, and coarsely, thickly 

 punctate *. S. ruficornis is very nearly allied to S. gehini, and apparently only differs 

 from it in the slightly longer penultimate joint of the maxillary palpi, and the more 

 coarsely punctured elytra, without well-defined coarse impressions towards the apex. 

 The type is figured. 



20. Scaptolenus revestitus. 



o*. Scaptolenus revestitus, Chevr. Ann. Soc. Ent. Er. 1874, pp. 508, 513 \ 

 Hab. Mexico (Salle l ), Jalapa (F. D. Godman). 



* Described as "minute punctulatis." 



