OJ JOHN L. LECONTE, M. D. 



souiewliat recurved tooth ; in sffiafus and complex the tooth is siULiiler, 

 broader and not quite so close to the extremity ; in hiarmata^ it is very 

 small, and quite remote, about one-third from the apex; the thighs are 

 uot toothed in the other species. 



It is difficult to determine to vehich of these species is to be referred 

 0. mnericanus Westwood, {Transi. Ent. Soc. London. 2nd ser., ii, 06) : 

 the description and figure represent the anterior margin of the front as 

 biangulated, and would seem therefore rather to refer to 0. simplex 

 than to nmsculus. In consequence of the unexpected increase in the 

 number of species, it is safer to await reference to the typical'specimen 

 in order to fix definitely the synonymy. 



The Mexican 0. htridtis Westw. (lor. cit.') seems to resemble jHcfo- 

 ralis Lee, above described, but the tubercles of the vertex are said 

 to be prominent, and the peculiar form of the prosternum seen in the 

 latter species is not mentioned. 



The new species here described are 1. opacus, Kansas : 4. biarmn- 

 tns, New Mexico : 5. complfx. New Mexico : 6. sparsna. New Mexico : 

 8. ih/ple.c, Texas, (Coll. Ulke) : 10. pectoralis, New Mexico. 



ANOMALA Koppe. 

 A. cavifrons, longiuscula pallida, subnitida, capite dense subtiliter punctato, 

 tcstaeco, clypeo pallidiore, rofundato, fortiter marginato et valde conoavo ; tho- 

 race parce punctulato, lateribus pijne inediutn subparallelis, atitice rotundatis. 

 basi bisinuato, aiigulis postiois rectis subrotundatis ; elytris striis subpunetatis, 

 interstitiis paulo convexis imjjunctatis ; pectore abdomineque parce setosis, 

 jiedibus jaiceo-marginalis, tarsis rufo-pieeis, unguiculis integris. Long. lO'S — 

 12 mm. 



Two males and a female collected on the Smoky Hill river. This dif- 

 fers from the previously known American species by all the tarsal claws 

 being acute and undivided; it therefore belongs to the group Rhom- 

 honyx Hope. The body is narrower than in our other species, being 

 proportioned nearly as in Laclinostcrna lonr/itcfno'.'i, but less cylindrical. 

 The club of the antennae in the male is one third longer than the other 

 portion, but in the female is not longer than the joints 2 — 6 inclusive. 



SANDALUS Kuoeh. 

 S. porosus, nigcr, capite thoraceque oj)aeis, confertissime subtiliter jmnclati-s, 

 line punctis niajoribus interraixtis poro.so, lateribus obliquis subrotuudatis, aii- 

 gulis postiois baud acutis, dorso subcaualiculato. apice et basi late et disco utrin- 

 ijue vage impresso; elytris obscure rufo-piceis, confertini seriatim puuetatis, 

 basi anguste licet fortius marginatis. Long. 15 mm. 



Two females found on the Arkansas, and one south of Raton Moun- 

 tain, by Dr. Lewis. This species agrees with S. niger and cali/ornirus 

 by the sides of the thorax being oblique and nearly straight, but differs 



