FLIES OF GENUS RR^ELLIA — NAMBA 63 



to second basal cell banded on about basal two-thirds, apical one- 

 third hyaline, this hyaline area wedgelike basally. Section of fourth 

 vein proximad of anterior crossvein with definite bend. Halteres 

 yellowish brown. 



Abdomen: Tergites shining, rugose. First, second, and third 

 tergites brownish yellow, remaining tergites reddish black. Disc of 

 first tergite with pale setae. Genitalia (fig. Z,k,l) with apical part of 

 aedeagus with a bulbous base, which bears on the dorsum a stout horn 

 on the left and a nodule on the right side. Attached terminally to 

 this bulbous base is a dorsoventrally flattened oblong plate which bears 

 at the apex two short diverging tubes. 



Allotype: Female. Body length 5.0 mm.; wing length 3.5 mm., 

 width 1.5 mm. Middle and hind coxae yellow. First two tergites 

 of abdomen yellowish brown, except for posterior border of second 

 tergite, remaining tergites reddish black; ovipositor sheath reddish 

 black. Otherwise similar to holotype. 



Paratypes: 41 males, 33 females. Body length of males 4.3-5.4 

 mm., of females 4.0-6.0 mm.; wing length of males 3.0-3.5 mm., of 

 females 3.2-4.0 mm. Sometunes abdominal tergites wholly brown- 

 ish yellow. Otherwise essentially simOar to holotype or allotype. 



Specimens: Holotype, cf , Cedar Keys, Fla., Aug. 10, 1939, A. T. 

 Hardy (SEC). Allotype, 9, Labelle, Fla., July 16, 1939, A. T. 

 Hardy (SEC). Paratypes: Florida: (1 9, Icf ; 19 July 1882, Wit- 

 feld); Biscayne Bay (19); Bradenton (2 9 9, 2cfc?', March, 

 M. C. Van Duzee); Cedar Keys (2 9 9 , 2cr'cf , July 12, 1939, D. E. 

 Hardy; 1 9 , 3d^d^, July 12, 1939, A. T. Hardy; IcT, July 12, 1939, 

 P. B. Lawson; 1 9 , July 12, 1939, J. D. Beamer; 2 9 9, July 12, 1939, 

 R. H. Beamer; 1 9 , Aug. 10, 1939, A. T. Hardy; Icf , Aug. 10, 1939; 

 J. D. Beamer); Clearwater (1 9, Apr. 29, 1908, M. C. Van Duzee); 

 De Land (1 9, 1 cf , Aug. 8, 1939, D. E. Hardy) ; Elfers (2 cT" cf , July 14, 

 1939, D. E. Hardy); Labelle (299, July 16, 1939, D. E. Hardy); 

 Miami (Icf, May 18, 1924, and Icf, Aug. 2, 1924, S. Graenicher); 

 New Smyrna Beach (1 9 June 6, 1942, D. G. Denning); Orange 

 City (19, Apr. 22, 1928, C. O. Bare); Sanford (19, Ic^, April, 

 1926); South Miami (Icf, Aug. 29, 1949, Link-McPhail ; 19, ^&&, 

 Aug.29,1949,Liiik-Calkins);St.Petersburg(5 9 9,2c?'cf ,Apr. 28, 1908, 

 M. C. Van Duzee); West Pahii Beach (Icf, June 11, 1941, L. W. 

 Hepner) ; 25 miles west of Miami (2 c^ cf , July 22, 1934, R. H. Beamer). 

 Georgia: (19; 3 9 9 , CU Lot 35) ; Southern Georgia (299, 3cf cf , 

 Morrison); Tybee Island (19, 2cfcr, July 26,1913). Louisiana: 

 Opelousas (1 9 , April 1897). New Jersey: Cape May (1 9 , Sept. 8, 

 1932; 19,16^, July 24, 1936; IcT, June 24, 1933; Icf ,Aug. 30, 1933; 

 3cfd^, July 13,1933; 1 d', Aug. 24, 1932; 1 cf, Aug. 12, 1935; Icf, Aug. 



