360 THE CANADIAN ENTOMOLOGIST 



differs from species of that genus by the very small, somewhat 

 triangular, labial palpi and the simple, not lobed, penultimate 

 joint of hind tarsi. It is possible that a new genus has to be 

 erected for this species as the genera of the tribe Scraptiini are 

 separated by the form of the last joint of maxillary palpi and the 

 form of the penultimate joint of hind tarsi; which are lobed in 

 Scraptia and Canifa but simple in Allopoda and the Central Ameri- 

 can Evalces. 



SPECIES OF THE GENUS BRACHYOPA OF THE 

 EASTERN UNITED STATES (DIPTERA). 

 by charles \v. johnson, boston. mass. 



Table of Species. 



1. Arista microscopically pubescent 2 



Arista conspicuously pubescent, species yellow, .notata O. S. 



2. Species yellowish or brownish  3 



Species blackish 5 



3. Dark brown, three thoracic lines, second abdominal 



segment light yellow, somewhat translucent. . .vacua O. S. 

 Light brown and yellow 4 



4. Thorax, dorsum brown, with four black lines, 



6-7 mm media \M1I . 



Thorax, dorsum yellow, with four brown lines, 



5 mm fiavescens Shan. 



5. Thorax, dorsum grayish pollinose with five black 



lines, abdomen entirely black daeckei, sp. n. 



Thorax, dorsum grayish pollinose with four black 

 lines and short diverse lines, abdomen black, 

 marked with grayish pollen diversa, sp. n. 



Brachyopa daeckei, sp. n. 



Front black, grayish pollinose, a shining spot above the base 

 of the arptennse yellow, bordered with black, face below the an- 

 tennae grayish pollinose, sides shining, yellow with two spots of 

 black, antennae dark yellow, arista brown. Thorax black, grayish 

 pollinose, with five subshining lines, the three inner ones slightly 

 diverging but not reaching the scutellum, pleura brownish grayish 

 pollinose, scutellum brown, the apical half much lighter than the 



October, 1917 



