THE CANADIAN ENTOMOLOGIST. 197 



half of the fore wings. A fuller description embracing both sexes 

 is here gi\-en : 



Palpi pale ochreous. Tuft on face and head reddish ochreous. 

 Antennae fuscous, eye-caps ochreous. 



Thorax and basal third of the fore wings black, apical two- 

 thirds tinged with brown. A broad pale ochreous fascia crosses 

 the wing at the basal third. From base to outer edge of fascia on 

 costa, and nearly to tornus on dorsum, the under side of the wing- 

 in the cf is ochreous; in the 9 , this area though paler is not defi- 

 nitely oulined. At two-thirds are some scattered paler scales, 

 sometimes (in 9 ) forming an indistinct line across the wing. 

 Cilia around the apex and last row of scales at the extreme apex 

 jiale ochreous. Cilia elsewhere concolorous with the wing. Hind 

 wings gray, cilia concolorous. 



Legs dull ochreous, mixed with fuscous; outer surface of fore 

 and middle tibiae and tarsi dark brown. 



Expanse: 6.5 mm. (d^); 7-8 mm. ( 9 ). 



I have always found this species resting on leaves of saplings 

 in dense woods with sparse undergrowth. The specimens in my 

 collection were taken May 30 to July 6; a single specimen is dated 

 August 5. I ha\'e thus far no clue to its life history. 



BOOK REVIEWS. 



The House-Fly. Its Structure, Habits, Development, Rela- 

 tion TO Disease and Control. By C. Gordon Hewitt, D.Sc, 

 F.R.S.C., Dominion Entomologist. 382 pp., 105 figs., Cambridge, 

 at the University Press, 1914. Price 15 shillings net. 

 It is unusual to find a book dealing with as wide variety of 

 subjects as this one, that does not show some inequality of treat- 

 ment when carefully analyzed. The author generally reveals the 

 fact that he is more at home in some branches of the subject than 

 in others. Of Dr. Hewitt's book this cannot be said. Whether he 

 discusses questions of minute anatomy or parasitology, bacteriology 

 or the practical problems concerned with public health, he shows 

 a thoroughness of grasp and a clearness of diction only possessed 

 by the master. 



The present work is an outgrowth of Dr. Hewitt's admirable 

 monograph on the House-fly, which first appeared in three parts 



