152 Psyche [October 
place of rupture, by autotomy, at the border-line between femur 
and trochanter. 
LITERATURE. ! 
Ainslee, C. N., 1906. The Snow-Fly, Chionea valga., Canad. 
Entom., Vol. XX XVIII, pp. 275-276. 
Bezzi, Mario, 1900. Sulla presenza del genere Chionea Dalman in 
Italia e la riduzione delle ali nei Ditteri, etc., Rend. Ist. 
Lomb. (2), Vol. XXXII, pp. 511-526. 
Bezzi, Mario, 1900. Die Chionea der Alpen, Societas entom., 
Jahrg. XXIII, pp. 97-99. 
Boldyrey, B., 1913. Sur les Dipteres du genre Chionea Dalman 
observés en Russie, Revue Russe entom., T. XIII, pp. 308- 
322. (Summary in German.) 
Brauer, F., 1854. Verh. Zoél.-bot. Ges. Wien, IV, p. 609. 
Cockle, J. W., 1914. The Mating of Boreus californicus, Proc. 
Entom. Soc. British Columbia, No. 4, Jan., also Feb. 22 and 
ile 
Dalman, G. W., 1816. Chionea araneoides, Koéningl. Vetensk. 
Acad. Handlinger, Stockholm, p. 104. 
Girschner, 1887. Bemerkungen iiber zwei seltene Dipteren, 
Entom. Nachrichten, Berlin, XLII, p. 131. 
Johnson, Charles W., 1907. The Snow-Fly, Chionea valga Harris, 
Psycuk, Vol. XIV, pp. 40-43, fig. 3. : 
Johnson, Charles W., 1912. -Dipterological Notes, Psycux, Vol. 
XLX, p. 102. 
Klocker, A. Chionea araneoides Dalman en for vor fauna ny flue, 
Entom. Medel, Kjébenhavn (2), Bd. 1, p. 104. 
Lesne, P., 1911. Sur la Présence du genre Chionea en Alsace, 
Bull. Soe. Entom. France, p. 170-171. 
Lugger, O., 1896. Insects Injurious in 1896, Bull. Minnesota 
Agric. Expt. Sta. No. 48, pp. 270, pls. 16. 
Lundstroem, 1907. Beitrige zur Kenntnis der Dipteren Finnlands 
VIII, Suppl. 2, pp. 60-61. Acta Soc. Pro Fauna et Flora 
Fennica, 29, No. 8, pp. 16-20. 
Middendorff, A. Th. v., 1851. Reise in den Hussersten Norden 
und Osten Sibiriens, Bd. II, Th. I, p. 68 (Insekten, bearbeitet 
von E. Menetries). 
10Only the more important papers are listed here. Many publications contain data on 
Chionea, its local occurrence, etc. 
