16 MISC. PUBLICATION 305, U. S. DEPT. OF AGRICULTURE 
DICLADOCERA MEGERLEI (Wiedemann), new combination 
(Fig. 4, A) 
Tabanus megerlei Wiedemann, Aussereuropaische zweifliigeligen Insekten, vy. 1, 
p. 182, 1828; Osten Sacken, Mem. Boston Soc. Nat. Hist. 2 (pt. 4, No. 4): 
457-458, 1876; Williston, Kans. Acad. Sci. Trans. 10: 138, 1887; Hine, La. 
State Crop Pest Comm. Cir. 6: 38, 1906. 
Tabanus megierlei Hine, La. Agr. Expt. Sta. Bull. 93: 51, 1907. (Misspelling. ) 
Rather large, stout; reddish and black; a prominent forward-projecting 
process on third antennal segment; wing spotted with brown; abdomen with a 
broad, median, black stripe and no pale hair marginally. 
FIGURE 4.—Antenna, front view of head, and palpus of (A) Dicladocera megerlei and 
(B) D. scita. 
Female—Length 16-20 mm. Eye with sparse, short pile. Frons yellowish 
brown at vertex and below top of median callus, the space between paler, yel- 
lowish gray; vertex occasionally with a dark-brown, triangular, denuded area; 
frons about three times as high as wide, with nearly parallel sides; basal 
callus shiny, dark brown, protuberant, not quite touching eyes and forming 
with median callus an elongate triangle reaching about two-thirds of distance 
to top of frons; often a denuded, slightly raised area at vertex; subcallus 
yellowish orange, flattened, with some black hair laterally. Antenna orange, 
darkened apically, the annulate portion black; first two segments with black 
hair and second with a distinct dorsal process; third with a prominent, curved, 
dorsal process reaching forward to base of annulate portion; annulate portion 
shorter than basal portion. Clypeus and genae orange brown, with dark-brown 
hair. Second palpal segment moderately stout, tapering to an acute apex, 
orange brown, with short black hair. 
Thorax brownish black, the mesoscutum with three slender, evanescent, 
grayish stripes, and a broader, reddish stripe from humeral lobe to scutellum. 
Wing hyaline, the costai cell, basal cells, and area just behind stigma brown, 
and longitudinal veins basally, furcation, and cross veins margined with brown. 
Legs orange brown, with black hair. 
Abdomen stout, pale reddish gray, with a broad, median, black stripe on 
dorsum and a fringe of black hair entirely around margin; hair of light por- 
tions orange brown, more yellowish on posterior segments. 
Mate.—Unknown. 
Type—Female, collection unknown, probably the Vienna Museum. 
Type locality—Unknown. 
Distribution.—Southern North Carolina to Florida and Louisiana. 
March 21 (Auburndale, Fla.) to April 20 (Southern Pines, N. C.). 
In the United States National Museum, five females. 
DICLADOCERA SCITA (Walker), new combination 
(Fig. 4, B) 
Tabanus scitus Walker, List of the Specimens of Dipterous Insects in the Col- 
lection of the British Museum, pt. 1, p. 181, 1848. 
Tabanus hirtioculatus Macquart, Diptéres exotiques nouveaux ou peu connus, 
sup. 5, pp. 53-54, 1855; Osten Sacken, Smithsn. Mise. Collect. No. 270, 
pp. 277-278, 1878. (New synonymy.) { 
