1917] Marchand — Notes on the Habits of the Snow-Fly (Chionea) 153 



Speiser, 1899. Ober Reduction der Fliigel bei ectoparasitischen 

 Insekten, Insekten-Bbrse, XVI, 1899, pp. 117 and 122. 



Thomas, Fr., 1890. Massenfang von Chionea araneoides Dalm., 

 Entom. Nachrichten, XVI, H. XX, No. 20, pp. 305-316. 



Washburn, F. L., 1907. Chionea valga in Minnesota, Canad. 

 Entom., Vol. 39, p. 103. 



Explanation of Figures. 

 Plate VIII. 



Chionea alpina Bezzi, male, dorsal view. 

 Ventral side of another individual, male. 

 Head of male, lateral view. 

 Ovipositor of female, dorsal view. 



Plate IX. 

 Chionea alpina, male, habitus. (Freshly killed individ- 



Antenna of male. 



Terminal portion of same antenna, slightly turned 



Antenna of another individual. 



Fig. 



1. 



Fig. 



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Fig. 



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Fig. 



4, 



Fig. 



1. 



ual.) 





Fig. 



2. 



Fig. 



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aside. 





Fig. 



4. 



