302 S. W. WILLISTON. 



Ten males und four feiuales, Washington, California, New Mexico. 



This name is pi'eoccupied by Rondani for a South American species, 

 and may be changed to E. Thomsoni 

 Gyiniiochseta alcedo Loew, C'entur. viii, 61. 



I refer a female specimen from Connecticut to this species, though 

 I hardly understand what is meant by the " tomentum" of the face 

 and humeri. There are minute spinules on the costa, otherwise the 

 description applies well. A male from Wyoming seems to be the 

 same ; the palpi, however, are blacker, and there are distinct spinules 

 at the tip of the auxiliaiy vein. 



Ciiyiniiocliieta vivida n. sp. 



Female. — Sides of the frout with a doulile row of bristles below. Antennte and 

 palpi black. Second and third abdominal segments each with three pairs of 

 median bristles. Length 13 mm. 



Bright metallic green, with violaceous reflections. Face and the posterior 

 orbits below with a gray satiny lustre ; lower part of the face and the cheeks in 

 ground-color red; occiput, posterior part of the checks, and the sides of the 

 front, shining. Front with an opaque dark reddish-brown stripe, moderately 

 broadened in front, pollinose when seen obliquely; hair of the occiput black and 

 yellow. Antennse black, third joint a half longer than the second. Orbits 

 above with two strong bristles, directed forward. Thorax scarcely dusted on the 

 humeri and sides. Tegulse white. Legs black, femora greenish. Wings cine- 

 reous hyaline; a stump of a vein on first posterior cell ; co.sta with two spinules 

 at tip of auxiliary vein, the last section of the fourth vein more oblique than in 

 G. alcedo. 



One specimen, Pennsylvania. 



Gjimioeha'ta ruflcoriiis n. sp. 



Female.— Xntennte wholly light red, the third joint broader and proportionally 

 a little longer; palpi reddish yellow; frontal stripe broadened in frout ; a single 

 row of bristles on the sides of the front near base of antenna ; spinules at tip of 

 auxiliary vein obsolete or wanting ; no stump of a vein on the first posterior cell ; 

 otherwise like G. vivida. Length 12 mm. 



One specimen, Pennsylvania. 



Belvoisia bifasciata Fabricius, Syst. Ent. 177, 18 (Musca) ; Wiedemann, 



Auss. Zw. ii, 305, 44 {Tachina) ; Macquart, Hist. Nat. Dipt, ii, 114, 19 (Nemoraea) . 

 Robineau Desvoidy, Myod. 104, 1 (LatreilKa) ; Macquart, Dipt. Exot. ii, 3, 57, 

 1, pi. 6, fig. 2a; v. d. Wulp. Tijdschr. v. Ent. xxvi, 24. 



jjab. — Atlantic States, Minnesota, Washington, South America. 



The third joint of the antennge is at least three times as long as 

 the second. The front of the female is considerably broader than 

 that of the male. The species varies considerably in size. 



Belvoisia biciiicta R. Desvoidy, Myod. 103. 1 ; Macquart, Hist. Nat. Dipt 

 ii. 112 (Senometojna) ; Dipt. Exot. ii, 3, 56, pi. vi, fig. 2c; 2e. Suppl. 66. 



