May, '02] ENTOMOLOGICAL NEWS. 167 



Doings of Societies. 



A regular meeting of the Chicago Entomological Society was 

 held in the John Crerar Library Thursday evening, March 20, 

 1902, at 8 o'clock. Seven members present, with President 

 Longley in the Chair. Visitor, Mrs. Westcott. 



The subject chosen for discussion at next meeting was 

 "Edible insects and products of insects useful to man." Talk 

 to be led by Mr. John Healy. Mr. A. Kwiat read an interest- 

 ing paper on the small Catocalae, in which he attempted to 

 straighten out their classification. President Longley also 

 showed some Catocalse, and Prof. Westcott exhibited Catocala 

 messalina. . John Adams Comstock, Secretary. 



At the March meeting of the Feldman Collecting Social held 

 at the residence of Dr. Henry Skinner, 716 North 20th Street, 

 eleven persons were present. 



Prof. Smith reported some investigations on a .scale insect 

 infesting rose, blackberry and raspberry bushes, known as 

 Diaspis roscc. This insect winters in all stages of growth, an 

 unusual condition in the insecta. In January were found 

 stages from half grown to fully developed males and females, 

 the latter with embryos. The anatomy of the piercing mouth 

 parts, consisting of three lancets, was described. 



Mr. H. Wenzel exhibited fifteen specimens of Cychrus, in- 

 cluding stenostotmis , cayiadensis , LeContei and bicarinatus, in 

 order to illustrate the intergradation of these forms, which 

 showed to his satisfaction that the whole series represented but 

 one species. He also referred to specimens of Cidndcla collected 

 at Vowells Mills, Louisiana, all of which are immaculate forms 

 of several known species. 



Variation and geographical forms were discussed by Messrs. 

 Wenzel, Smith and Skinner. Dr. Skinner referred to the diffi- 

 culty of studying Argynnis from our present knowledge and 

 spoke of the necessity of biological data in this connection. 

 Mr. Laurent stated that the true Cicindela longilabris and the 

 variety laurenti do not seem to commingle, the variety keeping 

 to the woods, whereas the typical form occurs along roadways. 



