DESCRIPTIONS OF NEW SPECIES. 193 



lively more equal. The sexual characters are as in the two 

 allied genera. 



510. M. Edwardsii. Fusco-testaceum, opacum parce pubescens, 

 antennis pedlbns prothoraceque pilis volatilibus parcius villoso, hoc 

 latitudine lougiore, tuberculo laterali majore obtuso, antice posticeque 

 late constricto et lateribus sinuato; elytris alutaceo-grauulatis, versus 

 suturaui parce punctato-striatis, punctis pone medium obsoletis, litura 

 angulata pallidiore mox ante medium signatis. Long. 12 mm. 



One 9 ; Santa Rosa Island, California, Mr. H. Edwards, to 

 whom I take pleasure in dedicating this remarkable addition to 

 our fauna. 



MOLORCHITS FABR. 



511. IMF. loiigicollis. Niger, antennis pedibus prothoraceque pilis 

 volatilibus munitis, hoc latitudine sesqui longiore, apice basique con- 

 stricto, pone medium paulo latiore, et lateribus angulato, dorso plani- 

 usculo minus dense punctate; elytris punctatis, testaceis, planis, oblique 

 impressis et ad apicem paulo tumidis; pedibus autennarumque basi 

 piceo-ferrugineis. Long. 8 mm. 



One $, California, Mr. Ulke. Differs from M. bimaculatus 

 chiefly by the prothorax being narrower, less rounded, some- 

 what angulated at the sides, and less densely punctured. The 

 antennae are longer than the body, slender, piceous, with the first 

 joint brownish-red. 



RHOPALOPHORUS SERV. 



512. R. laovicollis. Niger, opacus, prothorace impunctato, cinereo 

 pubesceute, vitta dorsali glabro, apice basi subtusque plus minusve 

 rubro ; elytris fortiter punctatis, cinereo-pubescentibus ; antennarum 

 articulo 4to sequentis dimidium sequante. Long. 12 mm. 



Texas and northern Mexico. Larger than the other species in 

 our fauna, and easily known by the impunctured prothorax, which 

 is distinctly constricted on the sides at the base, though the con- 

 striction does not extend upon the disk. 



HOLOPLEIJRA LEG. 



Body elongate, rather depressed, densely punctured, pruinose 

 with extremely short white hairs, head short, front small, vertical, 

 mouth small; palpi short, stout, genae moderately long; eyes 

 rather small, somewhat finely granulated, very deeply emarginate, 

 upper lobe very narrow; antennae widely separated, placed on 



