NORTH AMERICAN DIPTERA. 243 



!$ti*atioiiiyia badiuN Walker (PI. iii, figs. 11, 12). 



Stratiomys Badius Walker, List, 111, 529, 1. e. Iv, 1157. 



Stratioinys ischiaca (Harris), Walker, List, Hi, 529. 



Stratiomyia picipes Loew, Oeutur. vii, 21. 

 Length '£, 9 14 mm. % . — Face aud lower iiortion of the occiinit yellow ; face 

 with long yellow pile ; a wide facial line, mouth, vertical triangle and upper part 

 of the occiput black. Antennae black. Thorax black, with brownish pile ; scu- 

 tf Hum yellow, base black ; apical margin and spines red. Abdomen marked with 

 yellow, as follows : second segment with a small spot at the anterior angles, and 

 a transverse marking on the lateral posterior margins ; those on the third seg- 

 ment similar, except that the markings on the lateral posterior angles are longer, 

 and in some specimens almost join ; fourth with a spot at the anterior angle, and 

 a continuous posterior margin, from which extends, anteriorly (for about two- 

 thirds the length of the segment), a medial stripe widest at the base ; the fifth 

 with a very narrow lateral margin and a medial stripe not reaching the anterior 

 margin; venter black, with lateral spots on the first and a quite uniform posterior 

 margin of yellow to all the other segments. Femora black, varied with brown ; 

 basal third of the tibiai yellow ; tips of the femora, tibite and tarsi, red. Wings 

 brownish, hyaline ; veins reddish. 



9 . — Vertical portions of the occiput, vertex, front, facial line and mouth black. 

 Face, two large spots on the front, two on the vertical angles and lower part of 

 the occiput yellow; pile on the thorax shorter than in the % and with somewnat 

 conspicuous whitish tufts at the humeri, suture, posterior angles and pleurfe ; 

 yellow of the scutellum more prominent. Femora red, with a wide, variable 

 band of brownish black. 



Franconia and Mt. Washington, N. H. (Mrs. Slosson) ; Massa- 

 chusetts (Harris); "English River, Kennicot ; Canada, Couper" 

 (Loew). 



Walker's name hav'ing priority, I have adopted instead of Loew's. 

 In describing the species Walker gave the habitat as " New Hol- 

 land." This he corrects in Li.st, pt. iv, p. 1157, as follows : " for New 

 Holland read New Hampshire, and unite the description of S. 

 Badius with that of S. ischiaca.'' The latter name first appeared in 

 "Harris' Catalogue Insects of Massachusetts," 1835 (name only). 



Stratioinyia iniitabilis Fabricius (PI. iv, fig. 3). 



Stratiomys mutabiUs Fabr., Ent. Syst. iv, 262; Syst. Antl., 81; Wiedemann 



Auss. Zw. ii, 63, tab. 8. figs, a-d ; Perty, Del. Anim., etc., tab. 38. 14 ; 



Bellardi, Saggio, etc., i, 30; Schiner, Novara, etc., 61. 



Stratiomys fasciata Fabr., Ent. Syst. iv, 266; Syst. Antl. 81, [Bellardi]. 



Length 'J, 9 9 mm. — Face black, with white pile, which is very long and thick 



on the inferior oj'bits; facial prominence shining; facial orbits, and a spot on 



each side of the proniinence near the base of the antennse, yellow. Autennse 



black, basal half of the first joint reddish. Thorax black, with thick whitish 



pile ; posterior angles yellow ; scutellum black, inferior margin, basal angles and 



spines, yellow; tips black. Abdomen black, with a dense pubescence, which, in 



certain lights, show a silvery reflection (more noticeable on the ventral surface), 



segments narrowly margined with yellow ; a band occupying the posterior two- 



TRANS. AM. ENT. SOC. XXII. JULY, 1895. 



