ART. 17. NORTH AMERICAN PHOROCERA ALDRICH AND WEBBER. 5 



TABLB OF SPECIES. 



1. Mid tibiae with only one bristle on the outer front side near the 



middle 2 



Mid tibiae with two or more bristles on the outer front side near the middle; 

 bueca one-seventh the eye height insolens, new species. 



2. Four dorsocentral and two sternopleural macrochaetae ; abdomen with discal 



macrochaetae (pt/ste Walker) maculosa Meigen, 



Three dorsocentral and three sternopleural macrochaetae ; abdomen destitute 

 of discal macrochaetae parva Coquillett. 



NEMORILLA MACULOSA Meigen. 



Tachina maculosa Meigen, Syst. Beschr. Zweifl. Ins., vol. 4, 1824, p. 265. 

 Nemorilla maculosa Rondani, Dipt. Ital. Prod., vol. 3, 1859, p. 101. — 



Braueb and Bekgenstamm, Zweifl. Kais. Mus., pt. 4, 1889, pi. 1, fig. 12 ; 



pt. 5, 1891, p. 328. 

 Tachina pyste Walker, List. Dipt. Ins., vol. 4, 1849, p. 754. 

 Tachina (Exorista) phycitae LeBaron, Sec. Rept. State Ent. 111., 1872, 



p. 123. 

 Exorista scudderi Williston, in Scudder's Butterflies of New England, vol. 



3, 1889, p. 1921. 

 Exorista pyste Coquillett, Revision Tachin., 1897, p. 93. — Greene, Proc. 



U. S. Nat. Mus., vol. 60, 1922, p. 11, fig. 34, puparium.— Reinhard, Ent. 



News, vol. 30, 1919, p. 281. 



Front of male 0.205, 0.228, 0.238, and in the female 0.314, 0.309, 

 0.306 the head width ; face and front silvery, the latter often tinged 

 with golden; facial ridges bristly on the lowest third; bucca about 

 one-sixth the eye height ; antennae shorter than face, the third joint 

 in both sexes not over one and a half times the second ; arista thick- 

 ened on the basal third, the penultimate joint short ; palpi usually 

 yellow, often brown or black in male. Thorax black, gray poUinose 

 with three to five black vittae, when three are present the middle 

 one is twice as wide as the others; four dorsocentral macrochaetae: 

 scutellum black, sometimes the tip yellowish, bearing three long and 

 one shorter apical pair of bristles. Sternopleura with two strong 

 bristles. Abdomen black, gray pollinose, sometimes the sides of the 

 intermediate segments yellowish and often the tip of the fourth 

 segment in the female reddish yellow. Discal macrochaetae present 

 on all segments but the first, abdominal hairs suberect in male, de- 

 pressed in female. Legs long in the male, shorter in the female: 

 mid tibiae with one long bristle on the front side near the middle; 

 hind tibiae ciliate. AVings hyaline, third vein with two bristles at 

 its base. Hypopygium blackish, inner forceps black, slender and 

 slightly hooked at their apex, in profile the outer edge is straight, 

 sparsely haired; outer forceps brown, thicker than the inner ones 

 and terminating in a blunt point. 



Length 5 to 8 mm. 



Redescribed from a long series of both sexes, from New England 

 and Idaho to Cuba, the Virgin Islands, and Arizona. Three males 



