Sept., 1912.] Proceedings of the Society. 213 



Mr. Davis read a paper " Insects on a Recently Felled Pine Tree," and 

 exhibited a box containing the results of this experience. Mr. Davis also 

 exhibited specimens of some of the more important plants upon which they 

 collected insects in Florida. 



Meeting of M.arch 5, 1912. 



A regular meeting of the New York Entomological Society was held at 

 the American Museum of Natural History, President Dr. Raymond C. Osburn 

 in the chair and seventeen members present. 



Mr. Mutschler gave some " Notes and Exhibition of Some Species of 

 Cerambycidae in the Collection of the American Museum of Natural History." 

 He referred particularly to the four described species of Tragosoma, all of 

 which are treated by Hamilton as one under the name depsarium. He called 

 attention to the error by which Casey's species are treated as female by 

 Hamilton while the description expressly states the male sex ; and to the 

 differences in pilosity as well as in other characters between Casey's species 

 and depsaritini. He also referred to specimens of Necydalis mellitiis taken 

 at West Farms and to be added to the local collection, and to a Mexican 

 specimen of Piirpuricenus like humeralis in color and form. Mr. Mutschler, 

 referring to the general collection said that it contained a total of 1,125 species, 

 36S North American, 757 foreign, having recently been enlarged by a gift 

 from Mr. Leng; he called attention to some of its especially interesting 

 features, the types of Anthophilax hoffmani Beut, the type of Molorchus 

 longicoUis from the Edwards collection and the series of Black Mountain 

 longhorns collected by Beutenmuller, including the curious ant-like Michty- 

 soina heterodoxum found running on oak trees. 



Mr. Mutschler's remarks were discussed by Messrs. Schaeffer and Leng 

 on the subject of Tragosoma, the former pointing out the instability of the 

 characters used to separate harrisi, spiculum and pilosicollis from depsarium, 

 the form of the tooth at the side of the thorax, the punctuation, the pilosity 

 and the form of the body being all equally variable; the latter maintaining 

 that while the great similarity indicated a common origin for all the forms 

 described, the differences were sufficient to warrant considering the names as 

 indicative of geographical races rather than as synonyms. 



Mr. Davis, speaking of his experience in collecting Michthysoma in the 

 mountains of Northern Georgia, said that they were not confined to oaks. 

 That tree being abundant in the mountains often showed Michthysoma run- 

 ning on its trunk but the same was true of other trees also. He said the 

 insect was locally abundant on Black Rock Mountain in June but was not 

 found in July, and was not equally distributed over the mountain, but more 

 abundant in places on the ridges at an elevation of about 3.500 feet. Mr. 

 Grossbeck read a paper on " The Value of Genital Armature in Systematic 

 Work," illustrated by drawings thrown on the screen by the radiopticon. As 

 a preliminary he stated that he had never found differences in genitalia that 



