398 NORTH AMEBIC AN COLEOPTERA—LINELL. 



it is distinguished at once by its robust form and globose, constricted 

 thorax. 



LEPTURA COQUILLETTI, new species. 

 (Group Iceta of LeConte.) 



Moderately robust, the male as stout as the largest females of L. 

 tribal (e((ta, LeConte, the female as the male of L. nitens, Forster. An- 

 tennae entirely black, filiform, as long as three-fourths of the body 

 in the male, considerably shorter in the female. Head (except moutli 

 and antenna'), prothorax, i)ectus, and abdomen densely covered with 

 golden pubescence, entirely concealing the black surface, at least in the 

 female. Xo black hairs on the disk of prothorax, as in L. tribalteata. 

 Thorax deeply chanueled along the base, strongly constricted at the 

 sides behind the middle; posterior angles distinctly prolonged (as in 

 L. tribalteata); disk densely jiunctate in the female, less densely in the 

 male. Elytra somewhat rounded at the sides, finely punctate; the 

 ai)ices very obliquely truncate with the angles acute; four transverse, 

 uearly straight, very broad, yellow bands; the basal one covering the 

 epipleura and including a black humeral spot that arcuately connects 

 with the black suture; the second yellow band slightly broader at the 

 suture; three bands, narrower than the yellow ones, and apex black; 

 the whole surface, even the black parts, covered with sparse, golden 

 pubescence. Legs in the female yellow with tips of tarsi infuscate, in 

 the male fuscous with base of tibiic testaceous. Length, 10 to 12 nmi. 



Male. — Last ventral segment longer than broad, convex, with a small 

 triangular impression and a slight notch at apical margin. 



Female. — Last ventral segment broader than long, broadly concave, 

 slightly emarginate at apex. 



Two males and five females collected (June and Jnly) on Wilsons 

 Peak (4,000 feet altitude), Los Angeles County, California, by Mr. 1). \V 

 Coquillett. 



Trjpe.—'No. 209, U.S.IS^.M. 



This elegant species has the form of a Tj/poceriis, but has only slight 

 traces of poriferous spaces on the antenna* and should be placed near 

 Leptnra tribalteata, LeConte, from which it difiers by the golden pubes- 

 cence covering even the black parts and by its larger size and stouter 

 form. 



AMPHIONYCHA SUTURALIS, new species. 



Cylindrical, piceous, feebly shining, clothed with a fine cinereous 

 pul)escence and with erect pale hairs, longer and more numerous above. 

 Antenna' black, as long as the body, obsoletely annulate with white at 

 the base of the joints. The four basal joints are slightly thickened 

 with long black hairs scattered all ov^er, but with a tendency to form a 

 fimbria on the inferior surface. The relative length of the joints as 

 in A, flaminata, Newman; the third joint the longest, the scape and 

 fourth joint subequal, nearly twice as long as the fifth; the fifth to 



