142 ]\Ii'. 1). Sharp '.s Cuntrihutiuns to the 



depressed, and with the hind hody narrower. The an- 

 tenna? are lont^cr than the liead and thorax, slender, not in 

 the least thiekened towards the extremitv ; the three basal 

 joints are pitehy, the others pale yellow ; the 3rd joint is 

 longer than the 2nd, 4th about as long as the 2nd ; from 

 this to the extremity the joints differ but little from one 

 another; 11th joint rather shorter than the 10th, its 

 length two or three times its breadth. .Mandibles and 

 palpi pitchy red. Head about the width of the thorax, 

 sul)orbicular, covered with numerous closely placed, large 

 punctures, except the disc and a transverse space behind 

 the labrum, which are free from punctures. The eyes 

 rather lai'ge. Thorax nearly one and a-half times as long 

 as broad, narrowed behind ; the front angles much de- 

 flexed and rounded, strongly siiniate at the sides ; the 

 hinder angles obtuse and rounded, the upper surii\ce with 

 two irregular lines of large punctures along the middle, 

 leaving a broad sj)aee between them imjinnctate, and with 

 numerous other large punctures at the sides, scarcely 

 leaving the two middle lines of punctures distinct irom 

 the others, the punctures more numerous about the front 

 than at the hinder part. Scutellum black, large, densely 

 and distinctly ])unctured. Elytra about as long as the 

 thorax, and eonsidei'ably wider, dark bluish, rather 

 roughly and moderately closely punctured. Hind body 

 elongate, a little narrowed to the extremity, black, with 

 very faint bluish reflections; the 6th segment reddish, the 

 7th yellow; the base of each segment is closely and iinely 

 punctured, the apex more sparingly ; the hind part of the 

 6th and the whole of the 7th segment finely and sparingly 

 punctured. Legs black, rather long, the hind tibiae 

 especially long ; the four hinder tarsi Avith the joints a 

 little dilated and uneven; the 1 st joint rather stout and 

 nearly linear, about as long as the two folloAving together ; 

 the second joint triangular, the internal angle more pro- 

 duced than the outer one ; 3rd joint only half as long as 

 the second, distinctly lobed, especially on the iimer side; 

 4th joint rather narrower than, but nearly as long as the 

 3rd, its outer angle distinctly produced ; the tarsi are 

 pitchy, their terminal joints reddish. 

 Kga ; one specimen, 2. 



TrigonOPSELAPHUS {Trifjonophorus, Xord.). 

 This genus is also jieeuliar to South America; it eon- 

 slsts at present of about a dozen species ; some of its 



