320 THE CANADIAN ENTOMOLOGIST 



trochanters yellow; femora yellow, darkening to light brown at 

 the tip; tibia light yellow, brown at tip; tarsi brown. Wings 

 hyaline; veins light brown. Venation (see fig. 3, plate IV) cross- 

 vein r-m connects R4+5; no cross-vein m. 



Abdomen: tergum reddish brown, segments with a dark 

 brown apical ring; pleural line yellow; sternites brown, ovipositor 

 with yellow valve. 



Vial No. 27.— Tokyo, Japan; April 25, 1912; 1 9 . 



Holotype, 9 , Vial No. 27. 



Type in author's collection. 



Related to T. vitripennis Doane (West. U.S.) but lacks a 

 brown stigma, has no median cross-vein, etc. From T. immaculata 

 Meigen (Europe) it difTers in having cross-vein r farther removed 

 from the tip of Ri, cross-vein r-m far beyond the fork of Rs, not 

 at it; the legs much more yellow, not mostly brown; ovipositor 

 of the female yellow, not patch brown, etc. 



Tricyphona vetusta, sp. n. 

 Wings spotted with brown; cross-vein m-cu of the wings 

 present; cross-vein m present. 



Female. — Length 16 mm.; wing 14.8 mm.; hind legs femora 

 8.4 mm.; tibia 10.3 mm.; tarsus 8.9 mm. 



Female. — Rostrum light brownish yellow; palpi with segments 

 dark brown, the apical ones with bases yellow; antennae, base 

 light brown, flagellum dark brown; front, vertex and occiput 

 dark brown. 



Pronotum dark brown. Mesonotum, praescutum, greyish with 

 four brown stripes, the median one double, narrowed behind; 

 scutum dark brown, the lobes paler brown; scutellum dark brown, 

 much lighter on the sides; postnotum dark brown with a large 

 oval spot behind on either side of the median line. Pleurae dark 

 brown, indistinctly variegated with darker. Halteres light yellow, 

 the knob light brown. Legs: Coxae, especially the fore and 

 middle, brownish at the base, remainder light yellow; trochanters 

 yellowish; femora yellow, darkening into brown at the tip; tibia 

 yellowish brown, rather darker apically; tarsi dark brown. Wings, 

 tinged with light yellow, cells C and Sc a little brighter, with 



