1880.] PHYTOPHAGOUS COLEOPTERA. 181 



Hab. Amazons. 



Head as broad as long, deeply punctate near the inner orbit of 

 the eyeSj and longitudinally grooved in the middle ; antennae entirely 

 fulvous, third joint not much longer than the second, apical joints 

 gradually thickened and subquadrate. Sides of thorax flattened and 

 deeply depressed, with a distinct fold running parallel to the lateral 

 margins ; anterior angles mucli thickened, but scarcely produced ; 

 surface finely punctate, fulvous, the extreme lateral margins as far 

 as the depressed portion flavous. Ely tra widened behind the middle, 

 closely and more strongly punctured than the thorax, flavous ; a tri- 

 angular patch below the base, a transverse broad band immediately 

 below the middle, and another triangular-shaped patch near the 

 apex, together with the suture, fulvous ; the colour of the latter 

 widens considerably towards the base and surrounds the scutellum ; 

 none of the above patches touch the lateral or sutural margins. 

 Underside and legs fulvous. 



Three specimens in my collection. 



32. CEdionychis laticollis, sp. nov. 



Oblong-ovate. Piceous below, above ferruginous or fulvous ; 

 disk of thorax, a square broad patch at the base of each elytron and 

 another below the middle black. 



Length 3 lines. 



Hah. Duenas, Guatemala, and Columbia. 



Head longer than broad, with the usual transverse groove between 

 the eyes and a few deep punctures at the base ; antennae robust, 

 the third joint double the length of the second, black. Thorax 

 about twice as broad as long, comparatively broad, its sides broadly 

 flattened and rounded ; the anterior ngles not produced into a tooth, 

 but thickened and reaching to the middle of the eyes ; posterior 

 margin perfectly straight ; surface very minutely punctured when 

 seen under a strong lens, ferruginous ; the entire disk occupied by a 

 transverse black band. Scutellum piceous. Elytra very convex, 

 rather broadly margined, punctured like the thorax ; a large, square 

 black patch is placed at the base and extends to the middle, and 

 another one, the posterior margin of which is rounded, is situated 

 immediately below the middle ; neither of these marks extends to the 

 sutural or lateral margins, and the space between them is very 

 narrow. In the specimen from Guatemala the entire head is black, 

 and the space on the disk of the elytra which divides the two 

 patches is stained with flavous near the suture ; but in all other 

 respects the insect resembles completely the Columbian form. 



Types in Messrs. Godman and Salviu's collection and my own. 



Note on a formerly described Species. 



Metaxyonycha rufolimbata, Proc. Zool. Soc. 1878, p. 987. 



This species has been erroneously described by me under the above 

 generic name ; it is identical with Colaspis cruentata, Lefev. 



