THE CANADIAN ENTOMOLOGIST 271 



terminal area is the same colour as the basal area, with a faint reddish-brown 

 shade running through it. Marginal line dark brown. Fringe dark fuscous. 



Secondaries white, overlaid wMth fuscous scales; a prominent darker curved 

 line runs through the centre of the w ing, with another line, less distinct parallel- 

 ing it exteriorly. Marginal line distinct, dark fuscous. Fringe lighter than 

 primaries with a dark band running through it. Underside, primaries from base 

 to outer fourth, dark fuscous, terminal area lighter with a diffused reddish 

 sub-apical patch and the five yellow sub-quadrate patches showirig through 

 on costal margin. Secondaries, light fuscous with the prominent dark line 

 showing through, the second parallel line not being reproduced. Alar expanse 

 16 mm. 



Holoiype.— 9 , Rossland, B. C. July, 1900. Taken by the late W. H. 

 Danby, and now in the collection of the author. 



I am indebted to Dr. J. McDunnough for the generic determination. 



Paratypes of the foregoing new species and forms will be placed as far as 

 they will permit, in the Canadian National Collection, Ottawa, Ont., and the 

 Provincial Museum of Natural History, Victoria, B. C. 



Explanation of Plate IX. 



1. Tolype dayi Blackmore. Allotype, male. 



2. Tolype dayi Blackmore. Holotype, female. 



3. Caenurgia erechtea parva Blackmpre. Holotype, male. 



4. Enstroma nubilata macdiinnoughi Blackmore. Holotype, male. 



5. Dyssiroma sobria swetti Blackmore. Holotype, male. 



6. Dysstroma miilleolata Hulst. With which swetti has been misidentified. 



7. Eidype albodecorata Blackmore. Holotype, male. 



S. Herculia florencealis Blackmore. Holotype, female. 



A SYNOPSIS OF THE ANTHOMVIID GENUS TRICHOPTICUS RONDANI 



(DIPTERA). 



BY J. R. MALLOCH, 

 Urbana, 111. 



I have placed in this genus all species of the subfamily Phaoniinae which 

 have setulose hairs on the posterior upper margin of the hind coxae. The species 

 which have been placed in the genus AlWostylus Schnabl differ in habitus and 

 hypop\gial structure from those which belong strictly to Trichopticus, but I 

 have included them here because the females are so similar to those of the 

 true species of this genus that there is nothing to be gained by separating them, 

 the more so as they are similar in habitat, all species being found in the north 

 or in mountainous country. I have not seen any species of the genus as here 



December, 1920 



