JUL 3 



ENTOMOLOGICAL NEWS 



AND 



PROCEEDINGS OF THE ENTOMOLOGICAL SECTION 



ACADEMY OF NATURAL SCIENCES, PHILADELPHIA. 



VOL. XXVII. 



JULY, 1916. 



No. 7. 



CONTENTS: 



Hebard Critical Notes on Certain Spe- 

 cies of the Genus Blaberus (Orth., 

 Blattidae) 289 



Crampton The Lines of Descent of 

 the Lower Ptervgotan Insects, with 

 Notes on the Relationships of the 

 other Forms (cont.) 297 



Skinner A New Catagramma from 

 Brazil ( Lep. ) 307 



Photographs Received for the Album 

 of the American Entomological So- 

 ciety 307 



Dickerson and Weiss Notes on Lep- 

 toypha mutica Say ( Hemip. ) 308 



Moore A New Killing Bottle 311 



An Efficacious Endoparasite of Chry- 

 somphalus dictyospermi Morg. 

 (Hym., Horn.)..." 312 



Williamson On Certain Acanthagri- 

 ons, Including Three New Species 

 (Odonata) 313 



Kennedy Notes on the Penes of Zy- 

 goptera (Odonata) 325 



Brues An American Species of the 

 Ichneumonid Genus Heterocola 

 Fb'rster (Hym.) 330 



Editorial The Need of Carefulness in 

 Identification 332 



Wolley Dod A Correction for Parnas- 

 sius smintheus ( Lep. ) 332 



Skinner A Remarkable Abdominal 

 Structure in Certain Moths (Lep.) 333 



Entomological Literature 333 



Review of Needham and Lloyd : The Life 

 of Inland Waters 336 



1916 



Critical Notes on Certain Species of the Genus 

 Blaberus (Orthoptera, Blattidae). 



By MORGAN HEBARD, Philadelphia, Pa. 



(Plate XV.) 



Recently, in studying the species of the present genus ad- 

 ventive in the United States, it was found necessary to exam- 

 ine all of the material of the genus in the Philadelphia col- 

 lections and to consider carefully the literature on the sub- 

 ject, before these forms could be properly located. But two, 

 B. colosseus (as the synonymous inc.vicana} and R. dlscoi- 

 dalls (as the synonymous cubeiisis), have been recorded from 

 this country; confusion of the first of these with the closely 

 related B. gigantcits has made necessary a full discussion of 

 that species as well. 



The following discussion is based upon more extensive 

 series of the species involved than have ever been assembled 

 at one time in the past. 



289 



