ENTOMOLOGICAL 



AND 



PROCEEDINGS OF THE ENTOMOLOGICAL 



THE ACADEMY OF NATURAL SCIENCES, PHILADELPHIA. 



VOL. xxvin. 



APRIL, 1917. 





No. 



CONTENTS: 



Dietz Key to the North American 

 Species of the Tricolor Group of 

 the Dipterous Genus Tipula Lin- 

 naeus 145 



Harrison Egg-masses of the Vaporer 

 Moths Wanted (Lep.) 151 



Rehu On Coelophvllum simplex and 

 certain of its Allies (Orthoptera, 

 Tettigoniidae) 152 



Wolcott Influence of Rainfall on 



Abundance of a Moth ( Lep. ) 161 



Shinji Mating Hahit ol the Cottony 

 Cushion Scale ( Hem., Horn.) 162 



Chamberlin Notes on some Bupresti- 



dae of Northern California (Col.) 166 

 "Needham Notes on some recent stud- 

 ies of Dragonfly Wing Tracheation 

 ( Odon. ) 169 



Hungerford The Egg Laying Habits 

 of a Back-swimmer (Hem.) 174 



Buchholz A new Species of Acronycta 



(Lep.) 183 



The New Head of the Department of 

 Zoology and Entomology, Ohio 



State University 184 



Goe Adult Chrysopidae Do Eat(Neu.) 184 



Editorial Ants vs. Men 185 



Porter The Host of Ablerus clisiocam- 



pae ( Hym. ) 186 



Entomological Literature 187 



Review of Barnes and McDunnough : 

 Check List of Lepidoptera of Bor- 

 eal America 190 



Doings of Societies Feldman Collect- 

 ing Social (Lep., Col.) 191 



Entom. Section, Acad. Nat. Sci. Phil. 



( Orth. ) 192 



Entomological Workers of Ohio 192 



Key to the North American Species of the Tricolor 

 Group of the Dipterous Genus Tipula Linnaeus, 



With Descriptions of Four New Species. 

 By W. G. DIETZ, M.D., Hazleton, Pennsylvania. 



(Plate XI) 



1. Joints of flagellum unicolorous brown 2 



Joints of tfagellum distinctly bicolored (> 



2. Basal six joints of antennae yellow fulvolineata Doane 



(f/raphica Doane Syn.) 

 Basal six joints not as in the alternative 3 



3. Mesonotal praescutum without dark brown median line or 



stripe alexandriana spec. n. 



Mesonotal praescutum with dark brown median line or stripe. 4 



4. Median mesonotal stripe broad 5 



A narrow, median, mesonotal line vicina spec. n. 



5. Stigma brown, wing picture darker ... .aspidoptera Alexander 1 

 Stigma yellowish-brown, wing picture very pale, 



comanche Alexander 2 



!Can. Ent. Vol. XLVIII, p. 49. 

 -Ibid. p. 50, placed here tentatively. 



145 



