]805. I'EOCEKDIXGS OF THE XATlnXAL Ml'SElM. 725 



suture, anterior tibisie. tridentate, anteiiiiiTe Sjointed, scutellum more 

 narrow, uot transverse, and hind tibia' hardly as stout, Klytra sub 

 ru^^osely punctate, with faint traces of stria'. 



Leu^tli, 7 mm. One example, Colorado Desert, San Diego Couuty, 

 California, collected by Mr. D. W. Coquillctt. 



Tt/pc. — No. 505, U.S.N.M. 



DIPLOTAXIS RUFA, new species. 



Ovate, sliglitly broader behind, rufoferruginous, shining; glabrous 

 above. Front and clyi)eus convex, cribrately punctate; the latter 

 subrectaugular, truncate, margin narrow, but distinctly reflexed. 

 Anteniue testaceous, 10 jointed, club as long as the funicle. Thorax 

 one-half broader than long, narrowed in front, coarsely, moderately 

 closely punctate; sides obtusely subangulate at middle, slightly 

 sinuate before and behind; angles acute; impressions at the angles 

 feeble. Scutellum sparsely punctate. Elytra coarsely, but not very 

 densely, punctate; striae regular at the sides; punctures confused on 

 the intervals; costie with a series of minute punctures. Pygidium and 

 ventral surface coarsely punctate, the punctures with short hairs. 

 Legs setose, femora sparsely, moderately coarsely punctate; tibi;e, 

 especially of the posterior legs, roughly punctate; the anterior tibi.e 

 with upper tooth very saiall, the others strong, acute; the anterior 

 tarsi moderately long; the middle tarsi very long and the posterior 

 tarsi short, with basal joint incrassate, roughened; claws cleft, the 

 inferior part broader, with recurved ai)ex. 



Length, !> mm. Three examples, Georgiana, Florida. 



Types.— ^0. 500, U.S.N.M. 



This species resembles D. stihcostata, Blanchard, in the form of thorax, 

 but is smaller, has the thorax less constricted and moie coarsely punc- 

 tured, and the convex cribrose head with truncate clypeus is eutirel3' 

 different. 



]\^ote. — In comparing the original descriptions, I have come to the 

 conclusion that Diplotaxis castanea, Burmeister, is identical with 1). snb- 

 eosiata. Blanchard, D. georgkv, Blanchard, with J), liberta, Germar, and 

 cotpulenta, Burmeister, with J), tristis, Kirby. The last-mentioned 

 names in each case have the priority. 



LACHNOSTERNA ELONGATA, new species. 

 (Group Eplu-lida, Hi)rn.) 



Very elongate, cylindrical, finely and sparsely pubescent; rufotesta- 

 ceous, moderately shining. Head as broad as anterior margin of tho- 

 rax, infuscate, convex, densely and coarselj' punctate, with margin mod- 

 erately reflexed, distinctly emargiuate. Antenna' 10-jointed. Thorax 

 rather short, evenly convex, finely and densely punctate; sides strongly 

 arcuate and narrowed in front, parallel behind; anterior angles ol>tuse. 

 l)Osterior rectangular. Elytra subopaque, finely and densely, somewhat 



