THE CANADIAN ENTOMOLOGIST. 287 



one-half of cross-vein r-ui ; r-m usually about as long as the basal deflec- 

 tion of Cup Petiole of cell M (Mg^^s) usually long, two-thirds the radial 

 sector. Cug usually about twice the basal deflection of Cuj. Basal 

 deflection of Cui under the middle of the discal cell. In most specimens 

 the cross-vein m is much reduced, or even lacking, due to the great length 

 of the second deflection of M3. 



Length, ^ ^ 3.3-4.4 mm.; average, 3.6 mm.; wing, 4.1-4.2 mm. 



Length, 9> 4-5-4-9 mm.; average, 4.7 mm.; wing, 4.6-4.7 mm. 



Type. — (^ , Coy Glen, Ithaca, N. Y., May 21, 'ri. 



Co-types. — 12 (^ s, 3 9s; same time and place as the type. 



This tiny species is quite similar in venation to the species which I 

 have determined, provisionally, at least, as Adelphomyia senilis Hal. In 

 that species cross-vein m is always present in the scores of specimens 

 examined. 



The two species are of nearly the same size, with viiiiuta averaging 

 smaller. Although the distal cells of the wings of se7iilis are notably 

 pubescent, and of miiiuta entirely glabrous, except in a few abnormal 

 specimens, I have no hesitation in referring both species to the same 

 genus, because of the similarity of venation and genitalia of the c^ . The 

 valves of the ovipositor of the % are much more curved in niinuta than 

 in senilis. 



The species was very common on rank vegetation near rapids in Coy 

 Glen. 



Phylodorea sub cost at a ^ n. sp. 



^ . — Eyes black, with a purple reflection. Antenna, first segment, 

 elongate-cylindrical, somewhat broader distally ; second globular ; third 

 to last similar to one another in shape, cylindrical-ovate, with four or five 

 long black hairs arranged in a partial verticil about the center ; the last 

 few joints are more slender and shorter than those preceding ; antennge 

 black, with a thick gray pubescence throughout ; the extreme base of 

 segment three is brown in some specimens. Rostrum and palpi black. 

 Entire head black, with a gray pruinosity. Pronotum light gray pruinose ; 

 mesonotum black, with a thin yellow bloom on the sides, middle of prge- 

 scutum shiny black ; postscutum gray-pruinose. Metanotum gray. Sides 

 of thorax, including base of coxae, thickly gray-pruinose. Fore leg, tip of 



