302 ENTOMOLOGICAL NEWS. [November, 



ghenj' City which was very much infested with the former species, but 

 after the wood became dry all of the larvae died; this he stated is not the 

 case with Scolytus rugtdosus, which he had bred in great numbers from 

 dead wood in his laboratory, the species readily boring into the dead wood. 

 Dr. Horn entertained the members with some interesting narrations on 

 the differences between some species of Coleoptera. On motion of Mr. 

 Boerner, Mr. C. Few Seiss was unanimously elected an active member 

 of the Social. No further business being presented the meeting adjourned 

 to the annex. Theo. H. Schmitz, Secretary. 



Entomological Section of the Chicago Academy of Sciences. 

 — The regular meeting was held in the Matthew Laflin Memorial Building, 

 Lincoln Park, Friday, October i8th, at 8 p. m. Two papers were pre- 

 sented: — "A Tribute to Prof. C. V. Riley," by Mr. W. E. Longley. 

 " Observations on Collecting Lepidoptera during 1895," by John J. Healy. 



Arthuk J. Snyder, Recorder. 



Xhie Entomological Section 



ACADEMY OF NATURAL SCIENCES, PHILADELPHIA. 



PROCEEDINGS OF MEETINGS. 

 May 23, 1895. 



A regular stated meeting of the Entomological Section of the Academy 

 of Natural Sciences was held in the Hall, S. W. cor. Nineteenth and Race 

 Streets, this evening, Dr. Geo. H. Horn, director, presiding. Mr. Wm. 

 J. Fox called attention to the superficial resemblance between Myzine 

 and a new genus he proposed to call Engycystus. The differences be- 

 tween the two were pointed out. Dr. P. P. Calvert said that he always 

 held it was the business of an entomologist to study the external struc- 

 ture of insects, but the internal as well. He had lately been studying the 

 internal anatomy of the youngest larvae of two species of Dragonflies. 

 The literature of the subject was mentioned, but no one had studied sec- 

 tions of the eggs. Sections of the young larvae were studied in Gomphus 

 and in Libellula piilchella. Observations of interest were made in regard 

 to the alimentary canal and respiratory system. Trachaea were not found 

 in the newly-hatched larvae. The histological anatomy was dwelt on at 

 length, In discussing the alimentary canal the Malpighian tubercles were 

 mentioned, and in the larvae in question there were three Malpighian 

 tubercles. In the larvae oi pu/chella there are traces of the rectal tracheal 

 gills, but not in Gomphus. 



June 10, 1895. 



Meeting held this evening, Mr. Charles S. Welles, Vice-Director, pre- 

 siding. Mr. Philip Laurent mentioned that two species of Coleoptera: 

 Hydrophilus ovatus and Calosoma sayi, had been found in numbers in 

 the city, at the electric lights on South Broad Street, by Mr. Fox and 



