512, shuckard's descriptions of coleoptera. 



Sp. Pelecot. bioculatum. Shuck. Castaneum, fusco-tomento- 

 sum ; elytris ronnivcntihus, singulo oculo parvo albido sig- 

 nato. (Length 7^ lines.) 



Entirely of a pale chestnut, and covered with fuscous pubescence, 

 and at about two-thirds of the length of each elytron (which are 

 narrowly marginated, both at the suture and externally) there is a 

 central small irregular white spot : the base only of the lateral 

 margins of the segments of the abdomen white. — A male, from 

 the Brazils. 



0^5. — This insect is too different from the former to admit 

 of my considering it the male of that species. I expect they 

 would both enter into De Jean's genus Trigonodera ; but I do 

 not know upon what other characters than the conjunction of 

 the elytra he may have formed it, as he has not yet published 

 any description. 



Genus. — Nephrites, Shuchard. 



Head imequal, produced behind, and a little constricted immediately 

 behind the eyes: antennae 11-jointed, pectinated, subgeniculated, 

 inserted in front of the lower lobe of the eyes ; the scape robust, 

 obconic; the second joint minute and transverse; the third longer 

 than the second, subobconic ; the fourth robust, and produced 

 beneath into a broad tooth, forming the base of the pectination of 

 the rest, and which gradually increases to the'terminal one, where 

 this produced portion is the longest : eyes reniform, the emargi- 

 nation very profound, and leaving but a narrow fillet to con- 

 nect the two lobes, the superior of which is small, and the inferior 

 large : labrum membranaceous, transverse, convex, rounded in 

 front, where it is fringed with setae : mandibles large, forcipate, 

 triangular, acute, and hooked at the apex, just within which they 

 have a large triangular tooth : maxillary palpi with the first and 

 third joints equal, and the smallest ; the second rather shorter, and 

 less than the fourth, which is ovate : thorax forming a truncated 

 triangle, rounded laterally and constricted in front into a neck : 

 scutellum oblong quadrate, the posterior angles rounded, with a 

 deep triangular notch in front and subemarginate behind : elytra 

 abbreviated produced at the shoulders, divergent, and attenuated 

 towards the apex, where they are rounded, and a little more than 

 one-third as long as the body : wings ample, a little lon^e/ than the 

 body: legs — ? one posterioronlyleft, which is slender; the trochanter 

 obsolete, no calcaria, and the claws simple, having only a small 



