MONACHUS. 41 



9. Monachus semipunctatus. 



Below black ; head, thorax, and the legs light red ; elytra very finely punctate-striate, green or greenish blue. 



Length | line. 



Head flat, impunctate, eyes rather closely approached and deeply emarginate ; antennae extending to the end 

 of the thorax, black, the first two or three joints flavous ; thorax of the same colour, opaque and im- 

 punctate ; scutellum black, very narrow and pointed at the apex ; elytra broad, narrowed behind, the 

 apex of each elytron evenly rounded, the humeral callus very prominent and almost tubercular ; surface 

 very finely punctate-striate, the striee disappearing almost entirely near the apex, the interstices extremely 

 finely wrinkled, of a silky appearance ; the colour a light greenish of moderate gloss ; underside black, 

 with a slight greenish tint ; legs and tarsi reddish. 



Eab. Guatemala, near the city, Puenas (Champion). 



This is another species to be added to the second group of Suffrian's Monograph, 

 which contains several similarly coloured species. The present one, of which nearly a 

 dozen specimens are before me, is distinguished by the minute punctuation of the 

 elytra and the silky appearance of the latter, together with the uniform coloration 

 of the legs. It is closely allied to M. semicyaneus^ Suffr. 



10. Monachus scrobiculatus. 



Monachus scrobiculatus, Suffr. Monogr. xv. p. 90 \ 



.Black-blue; head, base of the antennas, legs, and the sides of the thorax fulvous, the latter impunctate, 



opaque ; elytra deeply punctate-striate. 

 Length f line. 



Hab. Beitish Honduras, Rio Hondo (Blancaneauw). — Surinam 1 . 



The specimen before me, from Honduras, does not seem to differ in any way from the 

 description given by Suffrian, except in the colour of the legs, of which the base of the 

 thighs only is fulvous ; the antennae (which were wanting in Suffrian's type) are black, 

 the basal six joints fulvous. Haldeman has given the diagnosis of a similarly coloured 

 species, which he calls M. auritus, and which is found in North America ; but his 

 description is too short to decide whether this and Suffrian's species are identical. 



11. Monachus sculptilis. 



Broadly ovate, black; thorax opaque, minutely punctured; elytra coarsely punctate-striate, bluish black, 

 interstices finely wrinkled. 



Length 1|-1| line. 



Head with a few but distinct punctures, eyes closely approached ; antennas as long as the thorax, black, the 

 first and second joints more or less fulvous ; thorax twice as broad as long, finely margined, sides slightly 

 rounded, posterior margin oblique and slightly sinuate at either side, the median lobe short and straight, 

 surface opaque, black, very minutely punctured near the base, with two short but rather deeply 

 impressed rows of punctures in front of the scutellum, the latter narrow, triangular, and pointed ; elytra 

 broad, very moderately convex, bluish black, each elytron with ten rows of deep punctures, commencing 

 below the base, and distinctly visible but slightly finer at the apex, the interstices, more especially near 

 the base, finely transversely wrinkled and aciculate, those of the last four rows forming two highly raised 

 costae from base to apex ; underside and legs black. 



Hob. Mexico, Guanajuato (SalU). 

 biol. cent.-amer., Coleopt, Vol. VI. Pt. 1, October 1880. g 



