ENTOMOLOGICAL NEWS 
PROCEEDINGS OF THE ENTOMOLOGICAL SECTION 
ACADEMY OF NATURAL SCIENCES, PHILADELPHIA. 
VoL. XXVIII. 
JUENG 
1916. IN@:) 7: 
CONTENTS: 
Hebard—Critical Notes on Certain Spe- 
cies of the Genus Blaberus (Orth., 
EV AEEIG AG) ectatciatisicitiolsis (ella «isivla\cieieiets 289 
Crampton—The Lines of Descent of 
the Lower Pterygotan Insects, with 
Notes on the Relationships of the 
Williamson—On Certain Acanthagri- 
ons, Including Three New Species 
(Odonata i522 eo oe siewis cleciadale woes 313 
Kennedy—Notes on the Penes of Zy- 
goptera (Odonata)...... .......... 325 
Brues—An American Species of the 
other Forms (cont.).........-.-.... 297 Ichneumonid Genus Heterocola 
Skinner—A New Catagramma from EROTSECH (UEWVTINs)) olla civicle’s|olelalaiai=iat='e)</at= 330 
sa |) (LQ sh) sacneghoousboaaoncads 307 | Editorial—The Need of Carefulness in 
Photographs Received for the Album FA CHtLA CATION rans neice cies oe ctdlncisiclatere ZoCRS 
of the American Entomological So- Wolley Dod—A Correction for Parnas- 
CLEAN cooe AdoooopougounoDdesDOoeodnS 307 sius smintheus (Lep.).............. 332 
Dickerson and Weiss—Notes on Lep- Skinner—A Remarkable Abdominal 
toypha mutica Say (Hemip.)...... 308 Structure in Certain Moths (Lep.) 333 
Moore—A New Killing Bottle.......... 311 | Entomological Literature......... .... 333 
An Efficacious Endoparasite of Chry- Review of Needham and Lloyd: The Life 
somphalus dictyospermi Morg. Of Toland) WaterSin.cpisiccicceojs.ule'se 336 
(JENS 1B OT) beddnnooonocaceéscean 312 
Critical Notes on Certain Species of the Genus 
Blaberus (Orthoptera, Blattidae). 
By Morcan Hesarp, 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 mexicana) and B. discoi- 
dalis (as the synonymous cubensis), have been recorded from 
this country; confusion of the first of these with the closely 
related B. giganteus 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 
