152 



U.S. NATIONAL MUSEUM BULLETIN 2 77 



tured between 11 April and 26 November 1958, including a pair in 

 copula (A. Loveridge) (BMNH); 2d'(^, 19, Nova Teutonia, Brazil, 

 27°11' S. 52°23' W., 28 October and 3 November 1936 (Fritz Plau- 

 mann) (BMNH) ; 9 99, Nova Teutonia, BrazU, November 1944, March 

 1946, November 1949, October 1956, October 1957, September and 

 November 1958 (Plaumann) (CNC) ; 1 cf , Boa Vista Fundode Figueiras, 

 Cape Verde Islands, 30 January 1954 (University Exped.) in (ZMUH) . 



104. Scenopiniis seftoni, new species 



Figure 102 



This is another species simOar to iS. mirabilis but wing tip with 

 cell R5 more constricted, halteres orange-yellow to tan. Aedeagus 

 stronger and parameres weaker, ninth segment claspers pointed. Fe- 

 male eighth tergum and sternum excavated behind. 



Figure 102. — Scenopinus sefioni, new species, male, female: a, wing; b, c, lateral and frontal 

 aspects of male head; d, e, lateral and frontal aspects of female head;/, enlarged detail 

 of male antenna; g-i, ventral, lateral and posterior aspects of male terminalia; /, ventral 

 aspect of female 8th sternum; k^ lateral aspect of female 8th and 9th segments; /, female 

 9th sternum and bursa; w, lateral sketch of bursa and central peg. 



Male. — Head black, eyes red-brown above, black-brown below, 

 frons subshining, swollen below, a median groove in upper half; 

 ocellar tubercle prominent, shining; ocelli red-brown; mouthparts 

 brown, moderately large, palpi half the length of oral opening which 

 is fringed by black-brown pollen; lower gena strongly developed, 

 shining. Antennae black-brown, first segment short, second larger, 



