120 NEW YORK STATE MUSEUM 



Arthrocnodax o c c i d e n t a 1 i s n. sp. Economic Ento- 

 mology Journal, 5 402, 19 12 

 Original description of a midge reared from red spider, Tetranychus. 



ADDITIONS TO THE COLLECTIONS, OCTOBER 18, 1911- 

 OCTOBER 15, 1912 



The following is a list of the more important additions to the 

 collections : 



EXCHANGE 



There were received from Dr Otto Niisslin, Zoologisches Insti- 

 tut, Karlsruhe, Germany, two or more specimens of each of the 

 following species : 



Eccoptogaster scolyta Fabr., E. ratzeburgi Jan- 

 son, E. c a r p i n i Ratz., E, multistriata Marsh, H y - 

 lastes ater Payk., Dendroctonus micans Kugl., 

 Myelophilus piniperda Linn., M. minor Hartig., H y - 

 lesinus crenatus Fabr., H. f r a x i n i Panz., H., vittatus 

 Fabr., Polygraphus polygraphus Linn. Cryptur- 

 gus cinereus Herbst., Ips sexdentatus Boern., I. 

 acuminatus Gyllh., I. curvidens Germ., I. 1 a r i c i s 

 Fabr., Pityogenes chalcographus Linn., P. b i d e n - 

 t a t u s Herbst. and Xyleborus saxeseni Ratz. 



There were received from Prof. J. M. Aldrich, Moscow, Idaho : 

 Ephydra hians Say, adults pupae and larvae ; E. gra- 

 cilis Pack, adults ; E. subopaca Lw., adults ; E. mill- 

 brae Jones, adults ; Caenia bisetosa Coq., adults. 



