THE CANADIAN ENTOMOLOGIST. 283 



io /usco-1/ndata Staud., Donov. in part, and testaceata Proiit., but are 

 differently marked, being really varieties of guinqice/asciata, as there is 

 some doubt in my mind of the true ftircata Thiinb. being found here. 

 This form might be confused with var. cupidata of nubilofasciata, but the 

 marginal band of the latter will separate them. This seems to be a 

 Californian variety, as have not seen any from other localities. 



Type, (^ , Eden Valley, Monterey Co., Cal., in Sweit coll. Type, 

 ^, Eden Valley, Monterey Co., Cal, in Broadwell coll. 



Co-type, (^ , Feb. i, '05, Santa Clara Co., Cal., in Marloff coll. 



Hydriomena fur cat a Th ii n b. 



(e) periclata, nov. var. 



Expands 30 mm. Head and thorax green and black, palpi short and 

 dark. Fore wings smoky-black, heavily powdered with green speckles; only 

 the mesial and fifth bands showing, the rest of the wing suffused. Hind 

 wings dusky brown, black discal joint and two smoky bands more prominent 

 than usual, and regular fringe very short and dusky. Beneath very deep 

 smoke brown, only two extradiscal lines showing on fore and hind wings ; 

 discal spot very i)lain on hind wings. This variety is close to var. 

 obliterata Prout, but differs in the almost black hind wings and style of 

 marking. This is almost an approach to melanism, perhaps due to its 

 late emergence. 



Type ^, Land's End, San Francisco, Cal., Oct. 10, 1909, from Mr. 

 F. X. Williams, and in Swett coll.. No. 17. 



This variety may be recognized by its suffused appearance and the 

 green speckles. It is allied to viridata Pack., but that variety does not 

 have the dark suffused colour. 



BOOK NOTICES. 



Catalogue of the Odonata of North America : By Richard 

 Muttkowsky (Bull. Pub. Mus., Milw., Vol. I, No. r, Milwaukee, Wis ). 



Those who have been looking forward to the appearance of this 

 much-needed catalogue of North American Dragon-flies will, we think, 

 have no reason to be disappointed. It gives the impression throughout 

 of thoroughness and accuracy. 



The classification adopted is based on Handlirsch's recent work, "Die 

 Fossilen Insekten." Four families are recognized : Agrionidse, Ccenagri- 

 onidse, ^^shnidee, and Libellulid^ie. The genera are intended to follow, 



