61 



3. Femora and tibia- black; three steruopleural macroclijet;e, but tlie 



lowest one sometimes very small, sternopleural hairs abuiulant 



and couspicuous 5. 



Femora and tibijie yellow, abdomen usually yellow, at least on the 

 sides at base, second and third segments bearing discal macro- 

 chictii^ 4. 



4. With three steruopleural macroehfet^e, face in profile concave; 



black, the base of antenna', palpi, proboscis, apex of scutellnm, 

 coxte, femora, tibia', and sides of first two or three abdominal 

 segments partly or wholly yellow; length, 8 mm. Los Angeles 

 County, Cal. (Insecta Saundersiana,Yol. I, i).313 ; 1850 : Dexia. 

 Matiicera euccrata Bigot, Annales Soc. Entomol. France, p. 263; 

 1888.\. *: .'^?A'r : ^ i /^:^- r^r l^r f : . . .pedestrls Walk. 



With ypnly /TWO sternopleural macrochai his face in profile strongly 

 convex; yellow, the apical two-thirds of the arista, ui)per part 

 orf' the occipnt except in the middle, and the middle of meso- 

 uotnni black; front in the male two-fifths, in the female three- 

 fourtbs, as wide as either eye, two pairs of orbital bristles in 

 the female, wanting in the male; frontal bristles descending to 

 tip of second antennal joint; cheeks bare, one-sixth as broad 

 as the eye height: antenme almost as long as the face, the third 

 joint six times as long as the second, nearly five times as long as 

 broad, arista minutely pubescent, thickened on the basal third; 

 thorax grayish polliuose, marked with four black vittie, scutel- <^ ./^tp^^^^ZT 

 lum bearing four pairs of marginal macrocha't;e; venter of ^--^^^ . 



abdomen destitute of short, stout spines; front pulvilli of male 

 as long, in the female one-half as long, as the last tarsal joint; 

 wings hyaline, veins in the female bordered with yellowish, 

 third vein bearing two or three bristles at the base; length, 7 to 

 8 mm. Franconia, N. H,, and North Carolina. One male and 

 female, the latter collected by Mrs. A. T. Slosson. Type ^o. 

 3540, U. S. National Museum Jiaveola n, sp. 



With only two sternopleurals; differs from the female of Jiaveola as 

 follows: Black, the second antennal joint and base of the third, 

 palpi, proboscis, femora, and tibijie yellow, sides of abdomen 

 basally sometimes also yellow; third joint of antenme four 

 times as long as the second, nearly four times as long as broad; y- 

 veins not bordered Avith yellowish; length, 5 to 5.5 mm. New '^' 

 Bedford, Mass.; Cumberland County, N. J., and Tifton, Ga. 

 Twelve females, collected by Dr. G. deN. Hough, Mr. C. AV. 

 Johnson, and Mr. G. II. Pilate gilvipcs n. sp. 



5. Arista thickened on only the basal third 6. 



Arista thickened on the basal three fourths, third joint of antennae 



in the female three times as long as broad, front slightly wider 

 than either eye, face in profile concave^bdoraen shining, strongly 

 tinged with bronze, base of second^segment^narrowly white polli- 

 uose, second and third segments destitute of discal macrochseta3, 



