Eleventh Report of the State Entomologist 251 



Schoturus nivicola (Fitch). 

 The Snow Flea. 



(Ord, Thysanura : Fam. Podurid^.) 



Fitch: in Amer. Quart. Journ. Agricul. Sci., May, 1847, v, p. 284; in 

 id. for Sept., 1847, vi, p. 152; Winter Ins. N. Y. (sep. from 

 prec.),pp. lo-ii {di% Podnra) ; the same republished in Lintner's 

 2nd Rept. Ins. N. Y., 1885, p. 244. 



Packard : in 5th Ann. Rept. Peabody Acad. Sci., 1873, P- 29-30 (as 

 Achorutes). 



LiNTNER : 2nd Rept. Ins. N. Y., 1885, p. 203-206 (as Achorutes). 



MagGillivray : in Canad. Entomol., xxiii, 1891, p. 274 (catalogued as 

 Achorutes); in id., xxv, 1893, p. 316 {Schoturus ^xo'^oi^^, with 

 the Podura nivicola of Fitch as type). 



In the Second Report on the Insects of New ^ork, 1885, pp. 203-207, a 

 notice of some Podurids is given, under the heading of Achorutes nivi- 

 cola (Fitch). 



Recent studies given to the Poduridse, by Mr. A. D. MacGillivray* 

 appear to indicate that different species have hastily been referred to this 

 species by authors and accepted as identical with the Podura nivicola of 

 Fitch. It is therefore proper to state that the bibliographical references 

 that appear on page 203 loc. cit. were merely given on belief, and were not 

 based on actual knowledge of their correctness. 



Dr. Packard, in his Synopsis of the Thysanura of Essex County, Mass.\ 



referred the Podura nivicola Fitch to the genus Achorutes. Lately, Mr. 



MacGillivray, in one of his articles on North Ame?'ican Thysanura has 



proposed to retain for Achorutes the species in which the abdomen has 



no anal spines, and has named as a new genus, Schoturus, those allied 



species having two anal spines, of which Podura nivicola Fitch is taken 



as the type. 



Observed at Ghent, N. Y. 



While it is not certain that the observations of Poduridae recorded on 

 pages 204, 205 were those of 6". nivicola, the following one may be relied 

 upon: In 1893, num- 

 erous examples of a 

 Podurid were received 

 from Mr. E. C. Pow- 

 ell of Ghent, N. Y. 

 Critical examination 

 showed that they con- ^. ^^ ^ „ ^ ,-^- u. -^ u, 



•' Fig. 21.— The Snow-flea, Schoturus nivicola (Fitch). Possibly 



form so closely to the unnaturally swollen, greatly enlarged. (Original.) 



* In Canadian Entomologist, xxv, 1893, pp. 313-318. 

 t In Fifth Annual Report of the Peabody Academy of Science, 18731 PP- 23-51- 



