ENTOMOLOGICAL NEWS 



AND 



PROCEEDINGS OF THE ENTOMOLOGICAL SECTION 



ACADEMY OF NATURAL SCIENCES, PHILADELPHIA. 



VOL. XVIII. 



JANUARY, 1907. 



No. i. 



CONTENTS: 



Williamson Two new North American 

 Dragonfiies (Odonata) I 



Biederman Notes on Plusiotis beyeri 

 Skinner 7 



Riley- Some recent work on the devel- 

 opment of Hymenppterous Parasites 9 



Caiuk-ll A new species of the Orthop- 

 terous genus Daihinia n 



Banks A new Mayfly of genus Csenis. . 13 



Doane Notes on the Subapterous fe- 

 male of Tipula simplex Doane 15 



Franklin Notes on certain Cranberri 



Bog insects ... 17 



Rehn On Phrynotettrix magellanicus 

 Bruner and Tristira bergi Brmmer 



(Orthoptera> 21 



Skinner Rare Butterflies 22 



Editorial 25 



Entomological Literature 26 



Notes and News 



Doings of Societies 28 



Two new North American Dragonflies (Odonata). 



BY E. B. WILLIAMSON. 

 Boyeria grafiana n. sp. 



Abdomen d 1 , 48-51; ?, 465/2-47^ mm. 



Hind wing < 40-43; ?, 43 mm. 



Specific characters : Body colors, especially the thorax, generally 

 black and gray with little trace of the fulvous which characterizes 

 B. vinosa. The dark brown basal wing spots of vinosa reduced to a 

 trace, and the wing membrane clear hyaline (excepting more or less 

 fumose beyond the stigma) as contrasted with the decided fulvous of 

 vinosa; venation less complex than in vinosa. Stigma paler than ii 

 vinosa and .5 mm. shorter. A decidedly more robust species than 

 vinosa; four dried males of grafiana weighed 12 grains, and four of 

 vinosa weighed g l / 2 grains. 



<$ Abdominal appendages variable but similar to those of vinosa, 

 generally more robust (two males of grafiana and vinosa from Ohio 

 1'yle, Penna., Sept. 23, 1906, have the superior appendages respectively 

 4^/2 and 5 J / 2 mm. long) with the sub-basal inferior tooth less developed. 

 and the inferior appendage dark colored and not yellow as in vinosa 

 Abdominal segments 9 and 10 similar in general color, greenish blue, 

 while in vinosa segment 10 is fulvous and 8 and 9 are decidedly more 

 brown than 10. 



$. Abdominal appendages very short, about the length of segment 

 10 ; in vinosa the appendages arc at least l l / 2 times the length of 10. 



