ART. 12 THE FLY GENUS SARCOPHAGA ALDEICH 5 



Male. — Front at narrowest (above middle) 0.20 of head width, 

 rather bulging in profile, the sides and parafacials with grayish 

 pollen tinged with yellow. Vertical 1, oceilars normal, frontals 10 

 pairs, uppermost represented by scars, lowest at base of second 

 antennal joint. The frontal rows diverge gradually from middle, 

 but do not approach orbits. Parafacial bare, wider than third an- 

 tennal joint; antennae black, third joint twice the second, arista 

 long plumose nearly to tip ; facial ridges with only a few hairs above 

 vibrissae; cheek hardly one-third eye height; palpi black; back of 

 head with black hair except just below neck, where the pale pile is 

 somewhat conspicuous. 



Thorax grayish pollinose with three black stripes and the usual 

 short one above wing, Chaetotaxy: Dorsocentral 2, 3; acrostichal 

 0, 1 (prescutellar, small); humeral 3; posthumeral 1 (inner); pre- 

 sutural 1 ; notopleural 2 ; supraalar 3 ; intraalar 1 ; postalar 2 ; sterno- 

 pleural 3 ; scutellum with 2 lateral, 1 subdiscal, no apical, Propleura 

 with a few dark hairs ; calypters and rims white. 



Abdomen black with slight bluish tinge, pollen thin except on 

 bases and sides of segments and on fourth; first and second seg- 

 ments without median marginals; third with a pair only slightly 

 separated from 4 pairs of lateral marginals; fourth with marginal 

 row of about 14. Genital segments small, black with gray pollen, 

 the first with an interrupted row of about six marginals. Genitalia 

 shown in Figure 25. Forceps brown, black apically, small, parallel, 

 straight, with erect pile on back; accessory plates (outer forceps) 

 dark reddish, shorter than forceps, tapering to a rather sharp black 

 point; penis with large, globose head. First and second of the 

 large abdominal sternites with soft hair and a single pair of long, 

 erect hairlike bristles near apex. 



Legs black, front and middle tibiae brown ; middle tibia with one 

 bristle on outer front side; tibiae without villosity. 



Wings considerably infuscated; epaulet black, basicosta yellow, 

 first vein bare, third setulose about two-thirds of the distance to 

 small crossvein; fourth with rectangular bend and ending not very 

 far before tip of wing; hind crossvein joining fourth vein at two- 

 thirds the distance from small crossvein to bend. 



Length 10.5 mm, 



Sarcophaga rufivenfris, p, 362, 



I published a note on the Vienna material^; a portion of the ma- 

 terial under the name was evidently of later origin than the publica- 

 tion of Wiedemann, and I disregarded the single old specimen 

 because I believed it bore the wrong head, glued on. This specimen 

 has come back to me again in the present shipment, from the Vienna 



eAnnals Ent. Soc. Ameiica, vol. 17, 1924, p. 211. 



