lis THE CANADIAN ENTOMOLOGIST 



species of this group, to associate the name definitely with any of our Ottawa 

 species. The only other name in this genus which might possibly have been ap- 

 plied to our forms was nibrscciis Prov., a species unknown to Dr. Banks. 

 Through the kindness of Canon Huard I have received for study the only two 

 species in the Provancher Collection labelled with this name in Provancher's 

 handwriting; one specimen, a $. is very evidently not the type nor even correctly 

 associated; it is a species of Chirotcuctcs. The other, a J*, agrees well with 

 Provancher's short description, having the costa and base of primaries and a 

 good portion of the secondaries tinged with ruddy colour. Tt does not however 

 belong in the genus Bactis but in lUictisca and is apparently distinct specifically 

 from obesa Say, the sole species at present included in the genus. T ])ropose 

 making this specimen the Lectotype and transferring the specific name to the 

 correct genus. 



In view of the above facts it seems advisable to give names to the two 

 unknown species ; the c^'s may be separated from one another as follows : — 



a. Superior eyes large, kidney-shaped ; intercalaries on primaries well 



developed, especially between subcosta and radius. . fnfrrca/ar/'f. n. sp. 



a^ Eyes smaller, oval ; intercalaries between subcosta and radius either 



faint or entirely lacking. 



b. Superior eyes moderate, roundly oval ; thorax of J* shiny 



black prop'uiquus Wish. 



b^ Superior eyes small, lengthily oval ; thorax brown with distinct 

 lateral yellow spot on prothorax extended backward by a line to 



base of wing flavistruja, n. sp. 



All the species agree in the J^ sex in the type of abdominal marking, the 

 first and the last three segments (apart from genitalia) being brown, the remain- 

 der hyaline white with black stigmatal dots. A detailed description of the new 

 species follows : 



Baetls intorcalaris N. Sp. 



J''. Length of wing (from center of thorax to wing tip) 5 mm; length of l)0(ly 



4y2 mm; length of abdominal setae 9-10 mm. Legs pale yellowish, an- 

 tennae blackish at base shading to whitish at tips ; lower eyes black ; superior 

 eyes large, brownish red, kidney-shaped, pale around the rims, which in dried 

 material are usually curled up. Thorax black-brown, slightly marked with 

 yellowish on the dorsal protuberances and with a yellowish lateral prothor- 

 acic line extending to base of wing; abdomen with basal segment dull brown, 

 last three segments ruddy-brown dorsally ; remaining segments pale yellow- 

 ish white; beneath all segments ])ut the first uniformly whitish; genital 

 organs pale; setae white. Wings with the intercalaries on primaries well 

 marked, the two in the interspace between subcosta and radius particularly 

 long; cross-veins between branches of cubitus distinct. 



In the genitalia the penes are curved, rod-like, ta])ering to a very fine point, 

 slightly bent at tip. 

 $. Eyes small, wide apart, blackish ; face variegated brown and yellow ; dorsum 

 of thorax slaty-black, laterally and abdominally brownish ; abdomen brown- 

 ish above, dull yellowish gray below ; setae dirty white, duller than in J*; legs 



