206 KANSAS UNIVERSITY SCIENCE BULLETIN. 



Caricea flavipes, n. sp. 



Female : Very close to muUimaculata, agreeing in size, color, 

 and chaHotaxy ; the markings of the abdomen are the same, 

 but not so distinct. The legs are wholly yellow. 



Five specimens ; April. 



Chortophila. 



(Macquart, Hist. Nat. Dipt., II, 323 ; 1825.) 



Chortophila linearis, n. sp. 



Male and female : Black, uniformly covered with yellowish- 

 gray pollen. Frontal vitta in male velvety black, except just 

 above antenna? where it is reddish ; in the female it is largely 

 reddish yellow, and bears a pair of bristles just below the ver- 

 tical triangle ; three frontals in male, five in female, inner and 

 outer verticals small in male, large in female. Antennie black, 

 first two joints of a reddish cast, arista short plumose. Face 

 of male more silvery pollinose than in the female. Oral mar- 

 gin, palpi and apex of proboscis with a brownish cast, palpi 

 linear. Mesonotum with four rows of dorsocentrals, middle 

 rows with two bristles in front of and three behind the suture, 

 outer rows with two in front of and two behind the suture ; 

 two humerals, two posthumerals, one supraalar and one posta- 

 lar bristle present ; prescutellar bristles small ; four meso- 

 pleurals and two sternopleurals, the male with three 

 sternopleurals ; apicals and basals of scutellum strong, pre- 

 apical pair small. Abdomen with marginal macrochiiet^B, those 

 of the male stronger than those of the female, second, third 

 and fourth segments of the male with a median linear spoh. 

 AVings hyaline, with a faint fuscous tinge ; costa with a strong 

 spine at tip of auxiliary vein. Halteres yellow. Legs black, 

 knees in the male and the tibitc in the female with a yellowish 

 cast. Length, 4.3 mm. 



Numerous specimens ; May and June. 



Hydrophoria. 



( Desvoidy, Myod., 503 ; 1830.) 



Hydrophoria tarsata, n. sp. 



Male : Head and members yellow, occiput black and covered 

 with a thin coat of gray pollen ; two pair of frontal bristles just 

 above the antennjr. Thorax subshining black, with a thin coat 

 of gray pollen ; humeri faint yellowish in ground color, not 



