124 GEO. H. HORN, M. D, 



margined. Elytra slightly longer than the pectus. Tarsi five-jointed. 

 Mesosternura feebly carinate. 



II. Scliwarzi, n. sp. — Pitchy black, sub-depressed, shining, elytra pale 

 luteous, legs and coxae testaceous. Head and thorax pitchy black, smooth, 

 shining. Thorax twice as wide as long, sides moderately arcuate and narrow- 

 ing to the front; apical margin with six punctures arranged equidistantly, base 

 ■with four, sides one a£ middle. Elytra luteous, shining, very sparsely and 

 finely punctate, and under high power finely transversely alutaceous, a setiger- 

 ous puncture near the humeri, another at the outer apical angle; form broader 

 than long, slightly wider at apex than at base. Abdomen piceous, sparsely 

 punctulate and pubescent. Body beneath piceous, abdomen as above. Legs 

 and coxse testaceous. Antennae piceous. Length .08 inch; 2 mm. 



This species is closely related to the European II. capillaricornis, 

 but is smaller in size, less robust, more slender, the elytra are always 

 luteous, the transverse strigae more distinctly marked and the sutural 

 angle less prominent. I have had the opportunity of making com- 

 parisons through the kindness of M. Aug. Salle. 



The sexes differ in the males having the sixth ventral feebly 

 eraarginate at middle. The last dorsals have not been satisfactorily 

 observed. 



The specimens before me were collected by Dr. E. A. Schwarz, (to 

 whom it gives me great pleasure to dedicate it), at Detroit, Michigan. 



Through some unaccountable error of observation I have attributed 

 (p. 81), but ten joints to the antennae of our species. I am very glad 

 to be able to correct the error in the same paper in which it occurs, 

 the antenna3 are eleven jointed. 



NOTES. 



1. — Hi/pocijptus Zieghri^ Lee. From specimens sent me by M. 

 Sall6, I feel constrained to unite this species with longicornis, Payk. 

 The unique of the former is somewhat smaller than the specimen sent 

 by Salle and darker in color, but does not otherwise differ. H. Crotchii 

 is however much more distinctly punctured. 



2. — On p. 8o I have associated Trichophi/us and Ilahrorerua, fol- 

 lowing the course of preceding authors. I have lately had an oppor- 

 tunity of examining the former genus and from the insertion of the 

 antennae am convinced that it is rather a member of the group Quedii 

 of the tribe Staphyliuini, allied to AcijJophorus and Ileterothops. It 

 is however rather anomalous in such alliance but no more so than is 

 Ilabrocerus with the Tachyporini. 



3. — Types of all the Alaskan species of Tachinus, except apterus^ 

 Makl., as well as several of the Bolitohius have been examined, 

 specimens having been sent to Dr. Leconte by Chaudoir and Man- 

 ncrheira. 



