22 PROCEEDmGS OF THE NATIONAL MUSEUM. vol.63. 



inent of male with a small dense patch of hairs underneath on each 

 side, a good character. Mid tibiae bearing two bristles on the outer 

 front side near the middle ; hind tibiae densely ciliate with or with- 

 out one longer bristle. Third vein with two bristles near its base. 



Length 8 to 10 mm. 



Redescribed from the following material : 



(1) A female from Ithaca, New York, out of the type lot, bred by 

 Prof. J. H. Comstock from Eudryas (now called Euthisanotia) 

 species. This specimen was donated to the Museum by W. R. Wal- 

 ton, who obtained it from Cornell University. . 



(2) A female from Dayton, Ohio, reared from Euthisanotia unio 

 Huebner by Dr. H. S. Jewett. This specimen bears Coquillett's label 

 as Exorista eudrijae; Townsend erected for it the genus Oxexorista 

 in 1912, referring to eudryae as the type of this genus but having this 

 specunen in view. Later (1917) believing it misidentified he pro- 

 posed for the specimen without description the specific name thomp- 

 soni (Type No. 19136, U.S.N.M.), and proposed to change the geno- 

 type of Oxexorista from eudryae to thoinpsoni. We fail to find after 

 prolonged comparisons that this specimen is a different species from 

 the remainder of the series. 



(3) A male labeled " Bred from Eudryas grata from Saunders," 

 no locality (Riley collection). This was selected by Townsend as 

 the true eudryae when he separated thoinpsoni, and it is without 

 doubt that species, although we believe his thompsoni is also. 



(4) A» large male from Kaslo, British Columbia (Currie), which 

 was compared with the type for us by Prof. P. B. Lawson at the Uni- 

 versity of Kansas. The type has been examined by the senior au- 

 thor, but not with reference to certain characters found afterwards. 

 Professor Lawson kindly made the desired comparison; this was 

 before we had discovered the type-lot specimen in the Walton collec- 

 tion, which confirmed his conclusion. 



(5) Two specimens reared at North East, Pennsylvania, from 

 Euthisanotia grata Fabricius by D. Iseley. One reared from the 

 same host at Raleigh, North Carolina, collector not known. Two 

 from the gypsy moth laboratory, one reared from Alypia octomacu- 

 lata Fabricius in Massachusetts. One bred from Acronycta species at 

 St. Louis, Missouri, by C. V. Riley. One from Plummer Island, 

 Maryland (Shannon, 1913). 



The species has been reported from New Jersey (Smith Cat.); 

 Axton, New York (McGillivray and Houghton) ; Kansas (F. h! 

 Snow); Ottawa, Canada (Gibson); North Carolina (Brimley) ; 

 Quebec, Canada (Winn and Beaulieu) ; Connecticut (Britton). 

 Brimley reared it from Euthisanotia grata Fabricius and unio Hueb- 

 ner and from Estigmene acraea Druiy. Tothill reared it from Eu- 

 thisanotia grata Fabricius at Ottawa. Unpublished records on speci- 



