94 ENTOMOLOGICAL NEWS. [March, 



ice ; digging a number out he placed them in a tumbler of 

 , water ; as soon as the water became somewhat warmer the 

 larvae began to move. Mr. L,. O. Howard in his paper upon 

 mosquitoes stated that they hibernated as adults, but Professor 

 Smith's observations seem to show that they pass the winter 

 in the larval state and are not effected by ice. Mr. Howard 

 also stated that larvae do not stay under water longer than 

 about one minute, and that their gravity is so great that they 

 would sink without wriggling ; but these remained under 

 water much longer ; in one case ten minutes, and they are 

 able to keep at the surface of the water without wriggling, the 

 motion of the ciliae also seems to help them in moving. 



Dr. Skinner mentioned that the temperature or chemical 

 condition of the water might have something to do with these 

 facts, and suggested that it might be advisable to make re- 

 peated observations. Professor Smith also spoke about swarms 

 of mosquitoes in Alaska, and said that when the snow recedes 

 they greatly increase in number, and suggested that they most 

 likely wintered in the larval state in ice, which does not get 

 below 32 degrees. 



Dr. Skinner also spoke upon observations made during the 

 Second Ross Expidition upon the larva Lepicloptera, which 

 were frozen and thawed a number of times before dying. This 

 was further discussed by Messrs. Johnson, \Yenzel and Daecke. 



Mr. \Yenzel said that Harpalus ca/i^ii/osns had only been 

 found around the habitat of man. He also mentioned that in 

 one species of Psclaphid, which he had seen in a number of 

 collections, all were males. Mr. Fox suggested that the 

 females may have been described under different names. Dis- 

 cussed by Messrs. Johnson, Smith and Fox. 



Mr. Daecke exhibited a was]) nest from Bloomfield, N. J., 

 from which he obtained three specimens of Odyncnts bircui- 

 1/iacn/atiis. He also exhibited galls of ^-Indn'cits <'oni/^< >~a from 

 which specimens of Scsin scitnla had emerged. 



Dr. .Skinner exhibited all the species of the nokomis and nito- 

 / r/'s groups of the genus . -//;</ nn/is, and showed differences in 

 sexes and color variations. 



Mr. Johnson exhibited two specimens of Microdon annih'ntns 



