AET. 17. NORTH AMERICAN PHOROCERA ALDRICH AND WEBBER. 7 



in the male the apices of the intermediate segments arc polished 

 black. Discal macrochaetae arranged in pairs, abdominal hairs sub- 

 depressed in female, erect in male and nearly as long as the macro- 

 chetae. Mid tibiae with two bristles on the outer front side near the 

 middle; hind tibiae subciliate at most. Third vein with two bristles 

 at its base. Hypopygium apparently the same as in maculosa. 



Length 5 to 8 m. 



Type.—M&XQ, Cat. No. 25693, U.S.N.M. 



Described from six specimens of both sexes collected at Melrose 

 Highlands, Massachusetts, May and June, 1918. 



Genus ZENILLIA Robineau-Desvoidy. 



Zenillia Robineau-Desvoidy, Myodaires, 1830, p. 152. Type, Musca Ubatrix 

 Panzer, originally included, by designation of Robineau-Desvoidy, Dipt. 

 Env. Paris, vol. 1, 1863, p. 471. 



Fhryxe Robineau-Desvoidy, Myodaii-es, 1830, p. 158. Type, Tachina vul- 

 garis Fallen, by designation of Robineau-Desvoidy, Dipt. Env. Paris, vol. 

 1, 1863, p. 829; on page 358 of tbe same work he makes Phryxe athaliae. 

 an included species, a synonym of vulgaris, which was not included. 



Careelia Robineau-Desvoidy, Myodaires, 1830, p. 176. Type, homhylaiis, 

 new species, by designation of Robineau-Desvoidy, Dipt. Env. Paris, vol. 

 1, 1863, p. 220. Macquart, in Hist. Nat. Dipt., vol. 2, 1835, p. 108, had 

 made bombylans a synonym of Tachina gnava Meigen, and this disposi- 

 tion of it has been generally followed since. 



Aplomyia Robineau-Desvoidy, Myodaires, 1830, p. 184 (Aplomya). Type, 

 Tachina confinis Fallen, by designation of Robineau-Desvoidy, Dipt. Env. 

 Paris, vol. 1, 1863, p. 459. On page 460 he makes zonata (male) and 

 servillei (female), both Included species, synonyms of confinis, which 

 was not included. Coquillett, Type-Species, 1910, p. 509, takes zonata as 

 type, regarding it as a synonym of confinis. 



Hnhneria Robineau-Desvoidy, Annales Soc. Ent. France, 1847, p. 601. 

 Type, Tachina affinis Fallen, by designation of Robineau-Desvoidy, Dipt. 

 Env. Paris, vol. 1, 1863, p. 279. On the same page he makes bis nigripes, 

 new species, originally included, a synonym of afflnis, not included. 



Chaetolyga Rondani, Dipt. Ital. Prod., vol. 1, 1856, p. 66 (ChetoUga). Type, 

 designated, Tachina gnava Meigen. 



Blepharidea Rondani, Dipt. Ital. Prod., vol. 1, 1856, p. 67. Type desig- 

 nated, Tachina vulgaris Fallen. 



Parexorista Bkaueb and Bergenstamm. Zweill. Kais. Mus., pt. 4, 1889, p. 

 87. Type (sole species), Exorista cheloniae Rondani. 



Myxexorista Bkaueb and Bergenstamm, Zweifl. Kais. Mus., pt. 5, 1891, p. 

 331. Type, Musca matrix Panzer, by designation of the authors in Verh. 

 Zool. Bot. Ges. Wien, vol. 43, 1893, p. 479. 



Eusisyropa Townsend, Smiths, Misc. Colls., vol. 51, 1908, p. 97. Type des- 

 ignated, Exorista blanda Osten Sacken. 



Oxexorista Townsend, Proc. Ent. Soc. Wash., vol. 14, 1912, p. 105. Type 

 designated, Exorista cudryae Townsend (in Proc. Biol. Soc. Wash., vol. 

 28, 1915, p. 21, the type material is renamed Oxexorista thompsoni. new 

 species, in the belief that it was wrongly identified in 1912). 



Euexorista Townsend, Proc. Ent. Soc. Wash., vol. 14, 1912, p. 166. Type 

 designated,. /iVo/Js^a futilis Osten Sacken. 



