ART. 8 FIVE NEW PARASITIC FLIES J. M. ALDRICH .5 



circular occipital spot reaching almost to the neck, which are dark 

 yellow ; front opaque, at the vertex 0.40 of head width, the paraf rontal 

 shining, narrow above, widening at the antennae. Parafacial also 

 shining, as wide as tlie third antennal joint. Antennae considerably 

 elongated, dark brown, the basal joint a little lighter, second and 

 third of about equal length; third rounded at apex; arista yellow. 

 Palpi dark brown. Thorax black, not very shining, the scutellum 

 and a very narrow postscutellum immediately below it yellow; the 

 humeri are partly yellow and there is an irregular yellow spot 

 around them extending part way to the center and back above the 

 notopleural bristles to the suture. 



Abdomen black, with a yellow band across the first segment pro- 

 longed backward at the edges, another including most of the dor- 

 sum of the lifth segment, and a large spot beyond the middle of 

 the last or sixth segment. This segment is considerably smaller 

 than the entire preceding part, irregularly constricted and bent 

 downward. The first segment has a considerable cluster of iong 

 black hairs on each side at the base and on the sternites of the rest 

 of the segments there is a cluster of such hairs on each side. The 

 last segment has rather dense long hair all over the basal half. All 

 of the hairs mentioned are black. 



Legs black, all the femora slightly yellow below at apex, the 

 femora stout and slightly grooved toward the apex for the recep- 

 tion of the tibia, the ridges bounding the groove being provided with 

 rather stout slanting small spines. The front and middle tibiae are 

 noticeably thickened from the middle, the hind ones from the first 

 third, of their length ; the middle tibiae have a distinct but not very 

 stout curved spine at tip. 



Wing as described, the costa extending to the fourth vein but 

 becoming weaker after the third, which ends very slightly before 

 the apex. Hind cross vein at right angles to the axis of the wing, 

 last section of the fourth vein twice the preceding. 



Length, 9 mm. 



Described from five specimens, all of which appear to be females, 

 bred at Shillong, India, from ruteline beetles by C. P. Clausen. 



Tijpe.—Femsile, Cat. No. -10983, U.S.N.M. 



Family TACHINIDAE 



SIGELOTROXIS, new genus 



Allied to Phrynofro)}tiua Townsend (type convexa Tow^nsend, 

 equals Stnrmia discalls Coquillett), with which it agrees in having 

 wide, bowed parafacials and many other characters, but from which 

 it differs in having the parafacials bristly over half way, no costal 

 spine, no discals. minute ocellars. etc. It also resembles Ptychotmji(A 



