ENTOMOLOGICAL NEWS 



AND 



PROCEEDINGS OF THE ENTOMOLOGICAL SECTION 



ACADEMY OF NATURAL SCIENCEH, PHILADELPHIA. 



Vol. XI. 



JANUAEY, 1900. 



No. 1 



CONTENTS : 



Kellogg— Notes on the Llfe-Hlstory 

 and Structure of Blepharocera 

 Capltata Ijoew .. .. 305 



SlosHon— Additional List of Insects 

 Taken in Alpine Region of Mt 

 Washington .319 



Johnson— Some Notes and Descrip- 

 tions of Seven New Species and 

 One New Genus of Diptera 323 



Barnes— Notes on North America 

 Dlurnals, with Some Additions 

 and Corrections to Dr. Skinner's 

 Catalogue 828 



Ho /land— A Description of a Variety 

 of Argynnis Nitocrls from Chi- 



liuahua, Mexico 382 



Dyar A New Coehlldian of the Pa- 



learctic Group . 388 



Editorial 336 



Economic Entomology 38B 



Notes and News . 840 



Entomological Literature 842 



Doings of Societies 34t) 



Exchanges 1,11 



NOTES ON THE LIFE-HISTORY AND STRUCTURE OF 

 BLEPHAROCERA CAPITATA LOEW. 



By Vernon L. Kellogg, 

 Stanford University, California. 

 I. 

 In the swift, tumbling little stream of Coy Glen, which has 

 out its way from the summit of West Hill into the valley at 

 the head of Cay ug*a Lake, near Ithaca, N. Y., an interasting 

 tiy makes itself abundantly at home. This tly is Blepharocera 

 tmpitata Loew, one of the few North American species of its 

 family. In Comstock's Manual there is a picture of the larva 

 and of the pupa of this fly. The midge itself looks like a 

 fimall crane-fly. Prof. Comstock gives in the Manual some 

 account of the Blepharocera^ a interesting habits and transforma- 

 tions. The larva and pupa are strangely modified to adapt 

 themselves to their aquatic life, for both larva and pupa live 

 submerged, dinging to the rockbed of the stream. They 

 gather in groups, forming black patches on the bed, in the 

 swift shallow parts of the brook. The larva) hold firmly to 



