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PROCEEDINGS OF THE NATIONAL MUSEUM 



84. Culicoides uniradialis Wirth and Blanton 



Figure 87 



Culicoides uniradialis Wirth and Blanton, 1953, Journ. Washington Acad. Sci., 

 vol. 43, p. 69 (male, female; Panama; fig. wing, palpus, male genitalia). 



Female: Length of wing 0.94 (0.89-0.99, n = 5) mm. 



Head. — Eyes narrowly separated, bare. Antenna with flagellar 

 segments in proportion of 22 : 19 : 19 : 19 : 18 : 18 : 18 : 18 : 18 : 18 : 18 : 18 : 26, 

 antennal ratio 0.65 (0.64-0.66, n=2); distal sensory tufts present on 

 segments iii, viii-x. Palpal segments in proportion of 9:18:24:10:10, 

 third segment very slightly swollen, 2.0 (1.9-2.2, n = 5) times as long 

 as greatest breadth, with a small, shallow sensory pit. Mandible 

 with 16 (16-17, n=4) teeth. 



Thorax. — Mesonotum rather narrow, color uniformly light tawny 

 brown, with numerous short, appressed, yellowish hairs. Scutellum 



Figure 87. — Culicoides uniradialis Wirth and Blanton. a-e, Female: a, wing; b, thoracic 

 pattern; c, tibial comb; d, spermathecae; e, palpus. /, g, Male:/, parameres; g, genitalia, 

 parameres removed. 



