MAY FLIES AND MIDGES OF NEW YORK 



73 



SUPPLEMENTARY NOTE 



In the interval that has elapsed since the above paper was 

 written, Mr. Nathan Banks has published two papers which con- 

 tain references to North American IJ y d r o p t i 1 i d a e (two 

 species of Hydroptilida?, Ent. News, April '04, p.ll6; and A List 

 of Neuropteroid insects, exclusive of Odonata, from the vicinity 

 of Washington, D. C, Proc. Ent. Soc. Wash. Vol. vi. No. 4, 

 pp.215-6). Tliese may give rise to questions of synonymy, but at 



t*r 



Fig. 15 Hydroptilid structures: A g r a y 1 e a in u It i p u n c t a t a ; 40, apex of 

 abdomen from beneath, 41, same from side, 42, triangular pieces from side, 43, same 

 when much exserted, 44, ventral lamina; Ortliotrichia americana (?) 

 45, apex of abdomen from beneath. 



the moment I am unable to deal with the subject which I think 

 may be safely left to be cleared up by American students. 



In the same interval some further material has come to hand 

 from Professor Needham and Professor Betten, but this has been 

 only partially examined. It includes an A g r a y 1 e a which ap- 

 pears to be the same as the European A. m u 1 1 i p u n c t a t a , 

 and an Ortliotrichia which I had described under the name of O. 

 c r i s t a t a but which may be O. a m e r i c a n a , Banks. There 

 is also another good species of H y d r o p t i 1 a , but the material 

 is hardly sufficient for description. 



