110 



Beverly, Mass.; Hartford, Conn.; Yirgiiiia; Columbia, S. C; 



J^ (\ ^a^'^'U^ Savannah, Ga.; Centerville, Fla. ; northern Illiuois'yjreuuessee; 



J /^ Waco and Paris, Tex., and San Jose, Cal. (Insecta Sauudersi- 



^ ana, Vol. I, p. 1283; 185(5: Tach'ma. Tdchina ohconica AValker, 



loc. cit., p. 29G. HeminKtsicera sp., Brauer and Bergenstannn 



in li.tt.) albifrons Walk. 



Abdomen bearing discal macroclnetie on the second and third seg- 

 ments; black, the first two joints of the antenna', palpi, and 

 apex of scutellum, yellow; front^of female almost as wide as 

 either eye, frontal bristles descending beneath the arista, sides 

 of face yellowish-white poUinose, vibrissa^ on a level with front 

 /" . y^ edge of the oral margin, ridges bristly on the lowest two-fifths, 

 J .:(^ cheeks one fifth as broad as the eye height; third joint of au- 



i c^./ tenm6/^t\fb'^and one third times as long as the second, arista 

 thickened on the basal half; thorax bluish-gray polliuose, 

 marked with four black vitt;e, four postsutural macrochsetoe, 

 scutellum bearing three long marginal pairs and a short apical 

 one; abdomen subshining, thinly white pollinosc; wings hya- 

 line, tinged with yellowish at the base and along the costa, third 

 vein bearing two or three bristleaat the base, calypteres white; 

 length, mm. Seattle, WashfwiiB female. . .occidentalis n. sp. 

 Abdomen bearing discal macrochittje, etc. Differs from occidentalis 

 as follows: (3oxie, femora, and tibia', yellow; front of male one- 

 half as wide as either eye, sides of face v/hite i)ollinose, facial 

 ridges bristly on the lowest fifth, third joint of antenna^ four 

 times as long as the second, arista thickened on the basal two- 

 fifths, abdomen opaque gray pollinose, marked with olive-brown 

 refiecting spots, wings not tinged with yellow; length, 9 mm. 

 Florida. A single male specimen, collected by IMrs. A. T. 



Slosson australis n. sp. 



5. Second and third segments of abdomen destitute of discal macro- 



cha^ta', apex of abdomen and of scutellum yellow 6. 



Second, third, and fourth segments bearing discal niacrochaete, some 



K,T . on the fonrth as long as those on the third, apex of abdomen 



, _ "■"^z and of scutellum black, third vein bearing three bristles at its 



base ; length, G.5 mm. Jacksonville, Fla. (Biol. Ceut.-Am., Dipt., 



Vol. II, p. 105; March, 1800: ^lasicera.yit^.*c-^.slri<iatcr'y. d. W. 



G. Cheeks one-sixth as broad as the eye height, frontal bristles not 



reaching to base of third joint of antenn* (see above under 3). 



phyciodis n. sp. 

 Cheeks one-ninth as broad as the eye height, frontal bristles descend- 

 ing below the arista, third vein bearing a single bristle near the 

 base; black, the palpi, ai)ex of scutellum, and sides and apex of 

 ^ , abdomen, yellow; frontof female three-fonrths as wide as either 



^^_^^j^,y^j^ ^y®, third joint of antenna} three and one-half times as long as 

 '-"^y"^ the second, arista thickened on the basal fourth; otherwise as 

 in the above description of phyciodis. A single female si)ecimeu 





