88 Journal New York Entomological Society. [Vol. xxi. 



He said that theoretically the black pigment converts the sun's rays and saves 

 the delicate internal organs from injury, as in the negroes. 



Mr. Davis said that two colors were found in the caterpillars of Spheco- 

 dina abbotii, but no differences could be detected in the adults. 



Meeting of January 7, 1913. 



The annual meeting of the New York Entomological Society was held Jan- 

 uary 7, 1913, at 8.15 P. M., in the American Museum of Natural History, 

 President Dr. Raymond C. Osburn in the chair, with seventeen members and 

 one visitor, Dr. Frederick A. Lvicas, Director of the American Museum, present. 



Mr. Harris, for the Nominating Committee, proposed the following candi- 

 dates for officers for the ensuing year : 



President — Raymond C. Osburn. 



Vice-President — Charles L. Pollard. 



Secretary — Charles W. Leng. 



Treasurer — William T. Davis. 



Librarian — John A. Grossbeck. 



Curator — Frank E. Lutz. 



Executive Committee — ^Charles W. Leng, Edward G. Love, Charles E. 

 Sleight, George P. Engelhardt, E. B. Southwick. 



Publication Committee — Charles Schaeffer, Frank E. Lutz, Harry G. 

 Barber, John D. Sherman, Jr. 



Delegate to Academy of Sciences — William T. Davis. 



There being no other nominations, the by-laws were on motion suspended 

 and the secretary, as instructed, cast an affirmative ballot electing the before- 

 mentioned candidates. 



Mr. Bird read a paper on "The Breeding of Papaipema stenocelis Dyar 

 Within Our Fifty-mile Radius," in which he stated that this very distinct and 

 striking noctuid, described in our Journal in 1907 from a specimen taken at 

 Baltimore, probably captured at light, was again found by Mr. Buchholz in 

 191 1 at Lakehurst. Knowing the food plants of the other members of the 

 group, he surmised that stenocelis would be found breeding in the stem or root 

 of some unfamiliar fern. Accordingly, on July 20 last he visited Lakehurst, 

 and noticing orange-colored frass on the sand beneath a fern {Woodwardia 

 virginica), discovered the larva feeding in the running rootstocks, which were 

 about as large as a pencil. From these larvae two specimens were bred, which 

 were exhibited with blown specimens of the larvae. Mr. Bird called attention 

 to the chitinized plates on the tubercles of the eleventh segment, which he 

 pointed out were larger than usual ; and closed by predicting that the metropolis 

 of this species would be found in the vicinity of the Dismal Swamp, and the 

 greatest number of specimens in the month of October. 



President Osburn read a paper on " Sexual Dimorphism in Diptera," dwell- 

 ing particularly on the differences in the form of the head and in the eyes, 

 holoptic in (^, dichoptic in $, and frequently with definitely limited patches of 

 larger facets in J". He spoke also of the feathery antennae of some (^ Culicidae, 



