OF WASHINGTON. 93 



MARCH 19, 1902. 



The 1 67th regular meeting was held at the residence of Dr. L. 

 O. Howard, 1336 Thirtieth street, N.W., President Dyar in 

 the chair, and Messrs. Kotinsky, Siinpson, Barber, Benton, 

 Howard, Ulke, Doolittle, Morris, Currie, Ash mead and Hunter, 

 active members, and Mr. H. H. Newcomb, of the Harris Ento 

 mological Club of Boston, visitor, also present. 



Mr. W. D. Hunter was elected an active member of the So 

 ciety. 



Under the head of Short Notes and Exhibition of Specimens, 

 Mr. Newcomb exhibited photographic prints showing the vena 

 tion of various insect wings. These prints were made by plac 

 ing the wings (those of the Lepidoptera being first bleached) 

 upon sensitized paper. He also showed the photograph of an 

 hermaphrodite gypsy moth, one side showing male, and the 

 other female, characters. The specimen from which this last 

 photograph was taken was loaned by Mr. A. H. Kirkland. Mr. 

 Simpson described the method, used by Prof. Comstock, of mak 

 ing tracing-drawings from enlarged photographs. 



Mr. Kotinsky showed a copy of Newstead's Monograph of 

 the British CoccidaB, Volume i,just issued by the Ray Society, 

 commenting upon the figures and on certain points in the 

 classification as given in that work. He also noted that the 

 Dactylopine scale-insect Pergandiella americana Cockerell 

 had recently been found infesting the underground portion of the 

 stems of Kentucky blue-grass (Poa pratensis) . A very similar 

 species, described by Signoret, had been found on grass stems, 

 but Cockerell's species had previously been found only upon ash. 



Mr. Simpson exhibited a drawing of the photographic appa 

 ratus used by him for getting pictures of the larvae of Hydro- 

 psyche in situ in the water, and also showed two prints of the 

 photographs obtained. He presented for publication the follow 

 ing abstract of his remarks : 



PHOTOGRAPHING NETS OF HYDROPSYCHE. 

 By C. B. SIMPSON. 



Many times while observing the nets of this insect in streams, 

 the writer wondered if they could be photographed in situ. 

 Many attempts were made to do so in Fall Creek, the gorge 



