1865.] 425 



B. Labial palpi large, 3-jointed, last joint very small: tarsi 3-jointed; ligula 

 large, bifid ; lobes nearly as long as the palpi. 



Genus 17.— DINOPSIS, Matthews. 



1. Dinopsis americanus, Kraatz. 



Dinopsis americanus, Kraatz, Linn. Ent. Zeits. xi, p. 38. 

 Black, subopaque, densely cinereo-sericeous ; legs luteo-fuscous 5 an- 

 tennae, palpi, and joints of tarsi, testaceous. Length 1 h, line. 



Hah. — Louisiana. 



Depressed, closely and very finely punctured, shining, clothed with 

 a very thin cinereo-sericeous pubescence. Antennae testaceous. Tho- 

 rax a little broader than the elytra, more than twice broader than long, 

 the base bisinuate, the posterior angles prominent, turned backwards; 

 upper surface rather convex. Elytra as long as the thorax, the suture 

 reddish. — Kraatz. 



2. Dinopsis myllaenoides, Kraatz. 



Dinopsis mylloznoides, Kraatz, Linn. Ent. Zeits. xi, p. 38. 



Black, opaque, cinereo-sericeous; antennae and legs testaceous; angles 

 of thorax prominent ; elytra a little shorter than the thorax. Length 

 1 line. 



Sab. — Louisiana. 



Black, opaque, cinereo-sericeous, very closely and very finely punc- 

 tured; antennae filiform, and, as well as the legs, testaceous. Head 

 deflexed. Thorax a little broader than the elytra, twice broader than 

 long, the base bisinuate, posterior angles straight, prominent, turned 

 backwards. Elytra a little shorter than the thorax. Abdomen rather 

 long ; apex of the sixth segment sometimes fuscous. — Kraatz. 



