ADAMS : DIPTERA APRICANA. 203 



ANTHOMYID^. 



Spilogaster. 



(Macquart„'Hist. Nat. Dipt., II. 293 ; 1835.) 



Spilogaster osten-sackenii, Jaen. Neue Exot. Dipt., 371, 77. 



Numerous specimens of each sex, which I identify as Jaen- 

 nick's species. The males have the markings of thorax and 

 abdomen opaque black, instead of brownish black as in the fe- 

 male. Among the lot are several males of smaller size, 4.5 

 mm., and with wings more clouded; otherwise, they are the 

 same throughout. 



April, May, and June. 



Spilogaster tripunctata? 



Anthomyia tripunctata Wied., Auss. Zweifl. Ins., II, 422, 2. 



A female specimen agrees with Wiedemann's A. tripunctata 

 in all particulars except the legs, which are of a uniform dull 

 yellowish cast, and tarsi black. Whether I am correct in my 

 identification or not, I cannot say, but my specimen agrees so 

 closely to Wiedemann's description that I do not feel justified in 

 describing it as new. 



October. 



Spilogaster quadriseta, n. sp. 



Male and female : Gray ; thorax with two indistinct brown 

 vittse ; second and third segments of abdomen each with two 

 brown spots, and the fourth segment with a median, oval spot ; 

 legs black. Head silvery pollinose ; eyes of male contiguous, 

 frontal vitta velvety black, with four bristles on each side ; 

 frontal vitta of female broad,. emarginated above by the gray 

 frontal triangle, with five frontal, one strong inner vertical and 

 one outer vertical bristle present, the lowest frontal is stronger 

 than the others and more porrect ; ocellar bristles strong and 

 divergent; antenns^e black, nearly as long as the face, arista 

 long plumose ; sides of face and upper part of cheeks bare ; 

 mouth-parts black. Thorax with four rows of dorsocentrals, 

 each with two presutural and three postsutural bristles ; two 

 humerals, two notopleurals, two supraalars, of which the 

 hinder one is small, and one postalar bristle present; prescu- 

 tellar bristles very small ; seven mesopleural, of which one is 

 situated in upper anterior angle of the sclerite, and four sterno- 



