520 Mr. Martix Jacoby on 



anterior angles distinct but not produced, surface not very 

 closely punctate, the punctures deeper near the sides than on 

 the disc, the intervals covered Avith minute punctures. Scutel- 

 lum triangular, smooth. Elytra moderately convex, punctate- 

 striate, the first stria abbreviated, intervals minutely punctured, 

 shining, fulvous, suture narrowly, more broadly anteriorly, 

 extreme lateral margin, and base more or less nigro-a3neous. 

 Underside and legs, with the exception of the coxa?, which are 

 fulvous, blapk, shining. 



HALTICIDiE. 



Rhoicns trifasciatns, n. sp. 



Elongate, parallel, flavous, shining ; thorax broadly angulate 

 before the middle; elytra punctate-striate, with three transverse 

 picGous bands, one at the base, one at the middle, and the 

 third at the apex. Length 4 lines. 



Head rather coarsely punctate on the vertex, with two highly 

 raised elongate tuliercles above the insertion of the antenna?, pro- 

 longed anteriorly into a short longitudinal ridge; antenna? reaching 

 to about one-third of the length of the elytra, entirely flavous, 

 the third joint as long as the first, the second short, the rest 

 shorter than the third. Thorax as long as broad, glabrous, sides 

 before the middle produced into a broad rounded angle, surface 

 with three transverse dejDressions near the base, depressed also 

 along the anterior margin, thus giving the disc an elevated 

 appearance, the entire surface is covered with distinct punc- 

 tures, but rather irregularly distributed, of a uniform flavous 

 colour. Scntellum triangular, flavous. Elytra much Avider 

 than the thorax, about four times as long, deeply punctate- 

 striate, the intervals here and there impressed with single deep 

 punctures, and slightly raised on the disc, of a paler flavous tint 

 than the thorax, a band at the base narrowed at the shoulders, 

 a broad fascia across the middle with its posterior margin sinuate, 

 and another at the apex, convex at its anterior margin, piceous. 

 Underside flavous, thighs a little darker. Claws appendiculate. 



The elongate ^^alpi, broadly angulated thorax, 1-spined tibia?, 

 and glabrous elytra agree very well with Clark's definition of 

 his genus Rhoicns. The present species may be easily distin- 

 guished from that described by Clark, by its large size^ and 

 its deeply punctate and three banded elytra, 



