ENTOMOLOGICAL NEWS 



AND 



PROCEEDINGS OF THE ENTOMOLOGICAL SECTION 



ACADEMY OF NATURAL SCIENCES, PHILADELPHIA. 



Vol. XVIII. JANUARY, 1907. No. 1. 



CONTENTS: 



Williamson— Two new North American 

 Dragonflies (Odonata) I 



Biederman — Notes on Plusiotis beyeri 

 Skinner 7 



Riley - Some recent work on the devel- 

 opment of Hymenopterous Parasites 9 



Caudell — A new species of the Orthop- 

 terous genus Daihinia 11 



Franklin — Notes on certain Cranberry- 

 Bog insects ... 17 



Rehn— On Phrynotettrix magellanicus 

 Bruner and Tristira bergi Brnnner 



(Orthoptera> 21 



Skinner — Rare Butterflies 22 



Editorial 25 



Entomological Literature 26 



Banks — A new Mayfly of genus Carnis. . 13 Notes and News 26 



Ui.iuie— Notes on the Subapterous fe- Doings of Societies 28 



male of Tipula simplex Doane 15 I 



Two new North American Dragonflies (Odonata). 

 By E. B. Williamson. 

 Boyeria graiiana n. sp. 



Abdomen <$, 48-51; $, 46^-47^ mm. 



Hind wing o", 40-43; $, 43 mm. 



Specific characters : Body colors, especially the thorax, generally 

 black and grav 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 in 

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

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

 vinosa weighed Q 1 /? grains. 



6*. — Abdominal appendages variable but similar to those of vinosa, 

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

 Pylc, Penna., Sept. 23, 1906, have the superior appendages respectively 

 4'A and 5^ 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 are at least V/ 2 times the length of 10. 



