ZENILLIA AND ALLIED GENERA — SELLERS 35 



record rearing Phryxe (Blepharidea) vulgaris from Europe-collected 

 Nygmia phaeorrhoea (Donovan). Osten Sacken records the type 

 specimen of hirsuta from Pierls rapae (Lintner). Williston records 

 rearing hirsuta from P. -rapae. 



Remarks. — The description is based on an examination of 120 reared 

 specimens recorded above bearing Gypsy Moth Laboratory note num- 

 bers; 3 collected specimens (Dyar, Townsend, Baker) ; 5 male 

 and 5 female European specimens determined by Bezzi, Brunetti, and 

 Brauer and Bergenstamm ; and an indefinite number of European 

 specimens. 



Baer states that Phryxe vulgaris deposits banana-shaped eggs on the 

 host that are ready to hatch (Pantel's group 6) . Townsend records that 

 "females of the Phryxe group deposit their maggots in choria on the 

 host." Lundbeck places P. vulgaris in Pantel's group 6, "ovoviviparous 

 species depositing on the skin of the host." Adults, May to October ; 

 number per host, one, occasionally several; generations, two or more; 

 hibernation, as larva in the host. 



2. PHRYXE PECOSENSIS (Townsend) 



(?) Exorista hirsuta Osten Sacken, Townsend, Psyche, vol. 6, p. 467, 1S93. 



Exorista vulgaris (Fallen) Coquillett (partim), U. S. Dept. Agr., Div. Ent., Tech. 

 Bull. 7, p. 93, 1897. 



Exorista vulgaris of authors (nee Fallen) Tothiix, Can. Ent., vol. 45, p. 71, 1913. — 

 Regan, Montana Agr. Exp. Stat. Bull. 154, p. 53, 1923. 



Zenillia vulgaris (Fallen) Aldkich and Webber (partim), Proc. U. S. Nat. Mus., 

 vol. G3, art. 17, pp. 26-28, 1924.— Johnson (partim), List of New England 

 Diptera, p. 196, 1925— Essig (partim). Insects of western North America, 

 p. 581, 1926.— West (partim), Cornell Univ. Agr. Exp. Stat. Mem. 101, p. 814, 

 192S. — Schaffneb and Gkiswold (partim), U. S. Dept. Agr. Misc. Pub!. 188, 

 p. 113, 1934. 



Plagiophryxe pecosensis Townsend, Insecutor Inscitiae Menstruus, vol. 14, p. 33, 

 1926; Manual of myiology, pt. 4, pp. 225-226, 1936.— Aldbich, Bull. Brooklyn 

 Ent. Soc, vol. 22, p. 24, 1927. 



In 1927 Aldrich considered Plagiophryxe pecosensis Townsend a 

 synonym of Zenillia vulgaris (Fallen) from Townsend's description. 

 Later unpublished notes by Aldrich indicate that Townsend, when on 

 a visit to the National Museum, synonymized Plagiophryxe with 

 Phryxe. 



Townsend's description of Plagiophryxe pecosensis adequately char- 

 acterizes this species. 



The recognition of pecosensis goes a long way toward reducing 

 the confusion that previously existed concerning the real identity of 

 Phryxe vulgaris in North America. The writer has noticed that in 

 many Palearctic and Nearctic species considered by specialists to be 

 Holarctic in their distribution and morphologically inseparable there 

 are eventually discovered small differences that serve to keep their 



