ENTOMOLOGICAL NEWS 



l-b 



PROCEEDINGS OP THE ENTOMOLOGICAL SECTION, 



ACADEMY OF NATURAL SCIENCES, PHILADELPHIA. 



Vol. in. 



APRIL, 1892. 



No. 



CONTENTS 



Horn — Dorcus parallelus 73 



Wright— In Alaska 74 



Laurent — Preparatory stages of Pam- 



phila nianataaqua 77 



Cockerell — Notes on the life-history of 



Calpodes ethlius 78 



Townsend — New N. Am. Tachinidee.... 80 



Smith — Elementary Entomology 82 



Angell — Two n. sp. of Coleoptera 84 



Williston — Notes on the habits of Ani- 



mophila...., 85 



McKnight — Lepidopt€ra of the Adiron- 

 dack Region 87 



Patton— Notes upon Larradae 89 



Harvey— Odonata of Maine 91 



Notes and News 93 



Entomological Literature 98 



Doings of Societies 103 



Dorcus parallelus Say. 



By Geo. H. Horn, M. D. 



The plate forming the frontispiece of this number has been 

 prepared from material which, for the most part, belongs to the 

 American Entomological Society. ' The reasons for presenting it 

 are : to settle finally the relationship existing between the names 

 parallelus, costatus and brevis, now in our lists — to illustrate the 

 possibilities of variation in form and sculpture, and, finally, to 

 ascertain by experiment the adaptability of the various photo- 

 plate processes for illustrations taken from the objects themselves. 

 Periodically the question is discussed, what is Dorcus brevis, and 

 is it distinct from parallelus ? It need hardly be said that this 

 question arises principally among those young in experience and 

 with small series, although species are frequently described as 

 new with far less claim to distinctness than the extreme specimens 

 on the upper row. D. brevis \s founded on males of full develop- 

 ment, broad thorax and smooth surface. The first two figures 

 accurately represent Say's idea. As a rule the males have quite 

 a smooth thorax, while the females are rather closely punctate. 

 In the brevis form the elytra are also quite smooth, but the transi- 



