380 ENTOMOLOGICAL NEWS. [Oct., 'l6 



genital plates and appendages of certain roaches. He also called at- 

 tention to the great extent to which sexual dimorphism is developed in 

 the same group, illustrating this point by specimens. Dimorphism and 

 polymorphism within the male sex in several species of roaches was 

 also mentioned. 



Meeting of April 27, 1916, Dr. Henry Skinner presided. Twelve 

 members present. Mr. William S. Huntington was elected a member. 



Lepidoptera. Dr. Skinner exhibited the imago of the Hesperid, 

 Megathymus yuccae, which emerged from the larva in the yucca plant 

 secured by Dr. Castle, May 20, at Enterprise, Florida (see Ent. News, 

 xxvii, 45). Mr. Laurent recorded his capturing a $ and 9 M. yuccae, 

 in March, 1907, at Melbourne, Florida. Dr. Calvert, referring to his 

 remarks at the previous meeting on larval cases, reported that he had 

 examined more of these, and had found the conditions to be the same 

 in all ; he believed, however, that the portions of insects so attached to 

 the cases, were not from insects captured alive by the larvae, but were 

 more likely fragments of dead insects, found and so attached by it. 



Orthoptera. Mr. Rehn called attention to and read extracts from 

 an interesting paper by Mr. E. D. Ball on "Estimating the number of 

 Grasshoppers" (Jour. Econ. Ent., viii, No. 6, 1915). He exhibited the 

 Academy's series of the gigantic Katydids of the Group Steirodontes, 

 including all but two of the known genera, and comprising half of the 

 known species of the genera represented. The rarity of certain of the 

 species in collections was commented upon, and remarks on the dis- 

 tribution of the forms of the marginclla group of the genus Stilpnoch- 

 lora illustrated. Mr. Laurent exhibited a grasshopper (Romalea mi- 

 croptera) impaled on a twig of pecan tree probably done by a shrike 

 or butcher bird (Laniidae) ; this was collected by him at Gulf Ham- 

 mock, Levy County, Florida, March 15, 1916. 



Odonata. Dr. Calvert exhibited Gomphus amnicola Walsh, $ 

 Marysville, Pennsylvania, July 14, 1912; <? Harrisburg, Pennsylvania, 

 July 9, 1910, by H. B. Kirk. The only previous eastern record is from 

 Bethlehem, New York, 1870. Gomphus quadricolor Walsh, one $ 

 Heckton Mills, Dauphin County, Pennsylvania, June 15, 1909, by H. P. 

 Bailey; two more (supposedly local) individuals of the latter species, 

 from the Academy's collection, with insufficient labels were also shown, 

 leading to remarks by several members on the importance of accurately 

 labeling all captures. 



R. C. WILUAMS, JR., Secretary. 



Feldman Collecting Social. 



Meeting of April 9, 1916, at the home of H. W. Wenzel, 5614 Stew- 

 art Street, Philadelphia. Twelve members were present. President H. 

 A. Wenzel in the chair. 



