220 :\Ii-. D. Shar^ Contributions to the 



smootli. Elytra considerably longer than thorax, fuscous, 

 the extremity ])aler, densely and distinctly punctured, 

 rather dull. Ilind body reddish, with segments 6 and 7 

 infuscated, except at their liind margins, extremely finely 

 punctured. Legs pale yellow. 



In the male the 7th segment of the hind body has a 

 narrow and rather dee]) notch, and the 6th segment has 

 the hind margin broadly and very distinctly impressed in 

 the middle. 



Two specimens, $ and 9. The $ (without further 

 locality than Amazons) is described as above. The female 

 is from Para, and differs a little from the $ , in being 

 slightly broader, and having the head reddish. 



14. Cri/ptuhium anf/ustum, n. sp. Elongatum, sub- 

 cylindricum, nigro-fuscum, cl^'trorum apice, antennis, 

 pedibusque tcstaceis ; capite opaco, dense subtiliter rugoso- 

 punctato ; prothorace opaco, obsoletissime punctidato, 

 basi linea elevata nitidji; elytris prothorace vix longioribus, 

 dense fortiterque punctatis. Long. corp. 3^ lin. 



Mas: abdomine segmento4°ventrali in s})inamelongatam 

 producto, trochanteribus posticis spinoso-elongatis. 



Antennse scarcely so long as head and thorax, yellowish ; 

 joints 3 — 6 infuscate, first joint as long as the five or six 

 following together, 3rd joint longer than 2nd, 4 — 10 each 

 a little shorter than its predecessor. Head narrow, but 

 rather broader than the thorax, the front part much 

 produced ; the pterygia very broad, the eyes prominent, 

 placed at the middle of the sides; it is of a blackish 

 colour, quite dull, densely and finely rugose-punctate, the 

 extreme front not punctate; the mandibles and palpi 

 yellow. Thorax quite tAvlce as long as broad, only about 

 half as broad as the elyti-a, dull, with an elevated line in 

 front of the base, shining, scarcely punctured. Elytra 

 slightly longer than the thorax, black, the extremity 

 yellow, closely and rather coarsely pvmctured, a little 

 shining. Hind body cylindric, closely and rather strongly 

 punctui'ed. Legs pale yellow. 



In the male the fourth segment of the hind body 

 beneath is produced into a long, stout tooth or spine, 

 reaching (juite to the extremity of the next segment; the 

 hinder trochanters are produced into a long, slender spine. 



Ega, Tapajos; three specimens, 1 ^, 2 ?. 



15. Cryptobiumci/lindricum,n.&\). Elongatum, peran- 



