Dec, '07] ENTOMOLOGICAL NEWS. 455 



Mr. Fenninger reported the capture of Microdon aurifex, 

 taken at the Forked River Mountains, N. J., July 9, 1906. 

 It was said not to have previously been taken north of Mexico. 



Dr. Calvert exhibited male and female specimens of Argia 

 translata from Ecuador. They did not show any geographical 

 variation from those found in the United States. He com- 

 mented on the wide geographical range of the species. He 

 also showed a male Perilestes from Surubres, Costa Rica, by 

 Professor Biolley, a genus hitherto known only from Esse- 

 quibo, Guiana, and Brazil, and pointed out its chief vena- 

 tional characters. 



Mr. Viereck recorded Hermetia illucens, a South American 

 Dipteron, taken at Philadelphia. He also said Andrena nasoni 

 showed considerable geographical variation. The western 

 forms may be considered as two subspecies. Other species of 

 Andrena which also show geographical variation were men- 

 tioned. 



Mr. Rehn said some species were more plastic than others, 

 and this fact should be considered. 



A meeting of the American Entomological Society was held 

 October ioth. Dr. P. P. Calvert, President, in the chair. 

 Thirteen persons were present. 



Mr. Viereck said he saw a frog at Tucker's pond, near 

 Devon, Pa., in the act of swallowing a dragon fly. He res- 

 cued the insect and found it to be Gomphus sordidus. This 

 habit of a frog was new to the speaker. 



Mr. Haimbach recorded the capture by Mr. Harbeck of 

 Caripcta angustiorata at Clementon, New Jersey, in May. 



Dr. Calvert exhibited an egg capsule of one of the larger 

 cockroaches, Peripianeta or Blaita, which had been firmly at- 

 tached to the fluted moulding of a bookcase in such a way 

 that the capsule lay in a vertical groove whose width was about 

 equal to the height of the capsule, the longest axis of the cap- 

 sule being vertical. The mother had almost covered the ex- 

 posed surface of the capsule with white paper (although the 

 moulding was dark brown), which had evidently been obtained 

 from a newspaper hanging near by, as the paper had been 



