ENTOMOLOGICAL NEWS 



AND 



PROCEEDINGS OF THE ENTOMOLOGICAL SECTION 



THE ACADEMY OF NATURAL SCIENCES, PHILADELPHIA 



VOL. XXXIII 



NOVEMBER, 1922 



No. 9 



CONTENTS 



Schmieder The Tracheation of the 

 Wings of Early Larval Instars of 

 Odonata Anisoptera, with Special 

 Reference to the Development of 

 the Radius 257 



Allen Ovipositional Habit of Pyraus- 

 tomyia penitalis Coq. ( Diptera, 

 Tacbinidae) 263 



Needham A Peculiar Damsel fly 

 Nvmph of the Subfamily Thorinae 

 (Odon.. Agrionidae) 264 



Malloch Keys to the Syrphid Genus 

 Spheg'na Meigen (Dip. ) 266 



Van Duzee A New North American 



Genus of Cydnidae (Hem.) 270 



Martin Studies in the Genus Hetae- 

 rius (Col., Histeridae) 272 



Benjamin Early Stages of Noropsis 

 hieroglyph ica Cram. (Lepidoptera, 

 Noctuidae ) 277 



Malloch Temno^toma bombylans 

 Linne Doubtfully American (Syr- 

 phidae, Diptera 278 



Editorial Insect Surveys 279 



Skinner Protoparce rustica in Florida 

 ( Lep., : Sphingidae) and Mr. T. L. 

 Mead 280 



The University of Michigan-William- 

 son Expedition to Brazil 281 



Lindsey The Authorship of the Lepi- 

 doptera Described in the Encyclo- 

 pedic Method ique, Vol. IX 281 



Ferris A Note on Timema californi- 

 cum Scudder (Orthoptera ; Phas- 

 midae) 282 



Insect Photography 283 



Chrvsops rostata Sucking Human 



Blood in Cuba (Dip. : Tabanidae). 283 



Entomological Literature 284 



Obituary Note 288 



The Tracheation of the Wings of Early Larval Instars 



of Odonata Anisoptera, with Special Reference 



to the Development of the Radius. 



By RUDOLF G. SCHMIEDER, M.A., University of Pennsylvania, 



Philadelphia. 



(Plates X, XI ) 



Comstock and Needham in 1898, and Needham in 1 ( H)3 

 published, an account of the development of the wing venation 

 of the Odonata. In the account of Needham, 1903, the devel- 

 opment of the wing veins is traced through a series of larval 

 stages in order to show that the vein lying posterior to .1/2, the 

 sul modal sector of earlier authors, is really the vein A J .v, and 

 that it has come to lie in this unusual position as the result of 

 a series of evolutionary changes in the history of the dragon 

 rly wing. These evolutionary changes, according to Needham, 

 are indicated in the ontogeny of the larval tracheae. Figs. 1 

 and _' in Xeedham's paper represent drawings of three stages 



257 



