ENTOMOLOGICAL 



AND 



PROCEEDINGS OF THE ENTOMOLOGICAL SECTION 



ACADEMY OF NATURAL SCIENCES, PHILADELPHIA. 



VOL. XXVII. 



JUNE, 1916. 



No. 6. 



CONTENTS: 



Ramsden The Status of Isognathus 

 congratulans and a New Form of 

 I. rimosa from Cuba ( Lep. ) 241 



Crampton The Lines of Descent of 

 the Lower Pterygolan Insects, with 

 Notes on the Relationships of the 

 other Forms 244 



Knab Mycetobia and the Classifica- 

 tion of the Diptera 259 



Hebard Two new dark-colored Spe- 

 cies of the Genus Eurycotis (Or- 

 thoptera, Blattidae) 263 



Reed Butterflies of a Mountain Park 

 in Colorado (Lep.) 267 



Entomologists at the Graduate School 

 of Agriculture 268 



Somes The Phasmidae of Minnesota, 

 Iowa and Missouri (Orth.) 269 



Chidester and Patterson The Influ- 

 ence of Various Concentrations of 

 Sea Water on the Viability of the 

 Salt Marsh Mosquitoes Aedes sol- 

 licitans and Aedes cantator (Dip.) 272 



Rau The Sun-Dance of the Sawfly 

 (Hymen.) 274 



Editorial A Duty of Specialists 278 



Index to Minnesota State Entomolo- 

 gist's Reports 278 



Weiss Parallelodiplosis cattleyae 

 Moll., in New Jersey ( Dip.) 279 



Smith Observations on Ants in South 

 Carolina (Hym.) 279 



Parker Feeding Habits of Sinea dia- 

 dema ( Het. ) 280 



Somes Targionia dearnessii Ckll. 

 (Hem., Horn.) 28-1 



Entomological Literature 283 



Doings of Societies Feldman Collect- 

 ing Social (Coleop., Hym., Lep., 



Dip., Homop.) 286 



Chicago Ento. Club (Col., Lep.) 286 



Newark Ento. Society (Dermaptera, 



Col,, Dip.) 287 



The Ecological Society of America 

 Announcements 287 



The Status of Isognathus congratulans and a New 



Form of L rimosa from Cuba (Lep.). 

 By CHARLES T. RAMSDEN, Guantanamo, Cuba. 



(Plate XIII) 



Drs. Rothschild and Jordan in their monumental work, 

 "A Revision of the Lepidopterous Family Sphingidae," Lon- 

 don, 1903, page 357, say under Isognathus congratnlans: 

 " $ bands of abdomen distinct. Forewings, above, for the 

 greater part blackish brown. This may be an c.rtrcmc form of 

 rimosa. (The italics are mine.] In Tring Museum I $ from 

 Cuba ; also in Berlin Museum." 



Unfortunately the Tring Museum did not have a long 

 enough series to determine whether it was a good species, or 

 only an extreme form of rimosa, as Drs. Rothschild and Jor- 

 dan suspected. 



241 



