2(5 Mr. C. H. T. Townsend on Diptera 



more uniformly brown or blackisli, darkest on dorsum, some- 

 times yellowish on underside. Appendages of ovipositor are 

 as follows : — The underside of second segment at its tip is 

 extended into a long, narrow, sheath-like point, considerably 

 shorter than segment itself; an elongate, spatulate, but sub- 

 equilateral, palpus-like organ, clothed wit!i black hairs, pro- 

 ceeds from tip of second segment and lies along upper surface 

 of this sheath, being about equal in length with the latter; at 

 base of spatulate organ, and apparently springing from 

 second segment, are two short palpiform organs also clothed 

 with black hairs. These appendages are all more or less 

 yellowish or rufous. In some specimens the sheath seems to 

 be split obliquely lengthwise on each side, forming three 

 pieces, and the side pieces, which are rather slender, are 

 sometimes hard to distinguish on account of their lying 

 closely against sides of spatulate organ ; in such cases tiie 

 sheath-like point of ovipositor seems very short, not nearly 

 the length of the spatulate organ. Front and middle legs 

 light yellow, the tarsi more or less blackish except meta- 

 tarsi; hind legs as described for bi'annulata, the hind femora 

 (as in all species known to me) biannulate with blackisli ; 

 hind tibijB with a narrow, rarely faintly silvery ring on 

 middle, distal two fifths of hind tibiae and all of hind tarsi 

 black. Wings evenly infuscated, halteres fuscous except the 

 ycdlowish stalks. Abdomen of male widened and blunt at 

 end, with six visible segments, the sixth blackish on sides ; 

 a tuft of yellow hair on underside of abdomen at tip. Hind 

 femora of male with the brush-like black hairs on underside 

 at base; hind tibiaj only slightly bent, sometimes hardly 

 perceptibly so. Hind tibia? swollen on distal half in both 

 sexes, more so in the male. 



Wiedemann seems to have had this species before him 

 ■when he wrote his description of S. stylafa, Fabr., for he 

 describes exactly the median longitudinal vitta of abdomen 

 with its triangular expansion on second segmeut, stating that 

 some specimens possessed this. 



12. Stylogaster etlnopa, sp. n. 



Twenty female specimens, none of the other sex whatever. 



2. Length 7 to 8 millim., without ovipositor; latter 4 to 

 4^ millim. 



Face yellowish, silvery pollinose ; silvery extending on 

 sides of front and ending in a point on each side before 

 reaching occipiial margin ; rest of front opaque blackish, 

 except the large, triangular, shining, black, ocellar area. 

 Antennae blackish, reddish on underside of third joint. 



