Vol. XXIV] ENTOMOLOGICAL NEWS 479 



edges, first along the hind margin and then along the front 

 margin. This cutting may be done with a pair of scissors, 

 a scalpel or even with the nozzle of the pipette. When the 

 laminae are almost, or entirely, separated they are floated on 

 to a glass plate, as in mounting sea-weeds, and dried covered 

 with another plate. 



He also read from a recent paper of Bervoets (Ann. Soc. 

 Ent. Belg. July 4, 1913) who has shown that the wings of 

 insects are not dry dead organs, but contain circulating blood 

 and are living and sensitive. 



Mr. Rehn exhibited Orthoptera of the genera Dlchopetala, 

 Insara and Arethaea belonging to the Hebard collection. It 

 is the most extensive series of these forms known. All the 

 known forms of these katydids had been examined and nearly 

 all were represented in the collection shown. 



Dr. Skinner referred to some collecting he had done during 

 the month of August, 1913, in the White Mountains of New 

 Hampshire. August the 2Oth he made the ascent of Mt. 

 Washington in search of Argynnis montinus and captured 

 seven specimens. The first one was taken at timber-line near 

 the Half-way House on the carriage road from the Glen 

 House. The remainder were found on the road between 

 the 4th and 5th mile-posts and none were seen beyond the 

 latter point. The species was rather wary and those taken 

 were resting on golden-rod or sunning themselves in the dust 

 of the road. A number of specimens of Somatochlora elon- 

 gata were taken around a small pond near the Jackson Falls 

 house. Insects were scarce on account of the prolonged 

 drought. A number of species of moths were taken at elec- 

 tric lights. 



Mr. Hornig reported the salt-marsh mosquito, Aedcs sol- 

 licitans, as breeding in large numbers at the salt works at 

 Weccacoe Avenue and Swanson Street. Philadelphia. These 

 mosquitoes were annoying at the Navy Yard and existed by 

 thousands. He described the general condition of the locality. 

 He also reported finding 406 Dipterous larvse in two cubic 

 inches of pig excrement from the piggeries in South Phila- 

 delphia. 



