202 Journal New York Entomological Society, t^'o^- ^i-^- 



he new species were several Petrostichits. Lcbia. Harpalus , etc., and a new 

 species of the strictly tropical genus I una from Brownsville, Texas. 



Professor H. E. Crampton referred to some of his former experiments in 

 grafting of various Lepidoptera as unsuccessful since the adults of these 

 grafts failed to mate. He spoke concerning the results of some work he had 

 been carrying on for a number of years which dealt statistically with certain 

 biological problems such as variation. Long series of measurements and 

 observations had been made in the larval and pupal stages of some of the 

 more common Bombycine moths to determine what bearing the relative 

 length of certain structural parts and weight of the whole had to do with the 

 character of the adult. Although the work was not yet completed he had 

 determined that there was undoubted correlation in this respect, as shown 

 by various statistical tables. 



Dr. E. P. Felt spoke concerning " Some Interesting Observations on 

 Cecidomyid Genera." Among other things he referred to the help he had 

 obtained in visiting and studying various European collections of gall midges. 

 He spoke of the new list of gall midges which he had prepared and mentioned 

 the number of synonyms as somewhat diminished by his recent studies. In 

 this list 129 genera were represented and the life histories of a large number 

 had been successfully worked out. 



Mr. Henry Bird in speaking of " New York City's Fifty Mile Faunal 

 Zone as Relating to the Noctuid Genus Papaipema " exhibited a collection of 

 most of the species to be found in the eastern part of the United States, — 22 

 of which positively occur within the 50-mile zone, with 4 others likely to 

 occur there. He spoke of the distinguishing characters of the genus which 

 had been separated from the Hydrwcia by Professor J. B. Smith. He referred 

 also to the habits of a number of the species. They are for the most part 

 borers in the stems and roots of perennial plants. The larvae are character- 

 istically striped and difficult to breed as a whole because of the wide range of 

 food plants necessary for rearing. 



Mr. Davis exhibited several strainers which had proved very satisfactory 

 for sifting. 



The society adjourned. 



Meeting ok Tuesday, M.w 17. 1910. 



Held at the American Museum of Natural History at 8.15 P.M. with 

 President C. W. Leng in the chair and sixteen members present. 



The Librarian, Mr. Schaeffer, read a list of exchanges recently received, 

 as follows : 



Verhandlungen d. k. k. zool. bot. Gesellsch. in Wien. LIX. No. g. 



Societas Entomologica, XXIV, Nos. 23, 24; XXV, No. 1. 



Zeitschrift f. wiss. Insektenbiologie, VI, No. 3. 



Entomologische Zeitschrift, XXIV^ Nos. 1-4. 



Canadian Entomologist, XLII, Nos. 4, 5. 



Coleopterorum Catalogus, Parts 11-14. 



