SARCOPHAGA AND ALLIES 159 



Hypopygium small; first segment somewhat 

 blackish on the narrow visible part, with a few rather 

 strong hairs ; second segment red, with scattered erect 

 stout hairs or small bristles. Forceps yellow at base, 

 scarcely divergent, curving forward and rather rap- 

 idly tapering to a simple point; accessory plate yel- 

 low with a black outer margin, rounded and hairy; 

 posterior clasper erect, straight, sharp and curved 

 forward at apex with a stout hair near base ; anterior 

 clasper strongly bent forward, nearly bare, the apical 

 part almost straight, flat, not hooked; penis with 

 rather short, reddish-brown basal segment ; the distal 

 segment on its basal third is brown behind and white 

 in front, the body of the segment is globose, the back 

 part shining black; the various processes are mostly 

 concealed within broad black lamella?. Fifth sternite 

 yellow, broadly V-shaped, with yellow pubescence 

 and delicate black hairs. 



Legs black, the middle femur without comb; 

 middle tibia with two bristles on the outer side; hind 

 tibia without villosity. Claws and pulvilli elongated, 

 the latter brown. 



Wings hyaline; no costal spines; third and fifth 

 costal segments about equal; the first and third veins 

 hairy, the hairs of the latter extending to the cross- 

 vein. 



Female. Front .329 of head (average of five,— 

 .315, .326, .33, .336, .34) ; outer vertical bristles 

 large; palpi somewhat clavate; scutellum with- 

 out apical bristles; genital segment red with a slit- 

 like orifice, with a few bristles. 



Length 3-8 mm. 



One of the conmionest North American species; 

 in the Hough collection 1 saw 1250 specimens. Co- 

 quillett (Proc. U. S. N. M., xxii, 255) has reported 

 it from Porto Rico, and Johnson (Annals E. S. A., 

 vi, 447), from Bermuda, and there are before me 

 specimens from Panama (Sturtevant), British Hon- 

 duras, and Havana; in the LTnited States it is com- 

 mon everywhere, most of the states being represented 



