200 THOMAS SAY FOUNDATION 



been detected which would justify a different con- 

 clusion. 



Holotype and allotype. — Male and female, No. 

 20451, U. S. N. M. 



No. 92. Sarcophaga juliaetta n. sp. 



Very similar to thatuna, differing only in the 

 following characters : 



Front .187 of head (average of three, — ^.186, 

 187, .188) ; third segment of abdomen with an inter- 

 rupted row of bristles, the posterior part of all the 

 abdominal segment broadly shining; forceps slen- 

 der, brownish at base, the remainder shining black, 

 diverging and tapering to a slender point, evenly 

 curved forward. The distal segment of the penis 

 strikingly large, the posterior part straight, rather 

 reddish toward the apex, where it curves forward, 

 bordered along the apex with a whitish fringe. Near 

 the base of the distal segment arise on the front side 

 two large half transparent shining brown plates 

 which have the anterior edge minutely serrated. Be- 

 tween these and extending forward are two whitish 

 plates very much larger. From the middle of the 

 distal segment arise two black, straight processes, 

 extending toward the apex and bearing whitish 

 fringelike structures which are more or less covered 

 by the part behind them. Middle and hind tibia; with 

 long villosity; the middle tibia has more than four 

 bristles on the outer front side. 



Female. Front .325 of head, with the usual or- 

 bital bristles ; the outer verticals well developed. The 

 hairs on the parafacials unusually strong and bristle- 

 like below; in the described specimen there are five 

 ps dc on each side and the scutellum has seven mar- 

 ginals on one side and six on the other; the third ab- 

 dominal segment with an interrupted row of very ap- 

 pressed bristles; genital segment red, with roundish 

 opening fringed with black hairs. 



Length 14 to 17 mm. 



