438 



PROCEEDINGS OF THE NATIONAL MUSEUM 



74. Culicoides imitator Ortiz 



Figure 77 



Culicoides imitator Ortiz, 1953, Rev. Sanid. Asist. Soc, vol. 18, p. 808 (male, 

 female; Ocumare del Tuy, Venezuela; fig. wing, palpus, antenna, eye, sper- 

 mathecae). 



Female: Length of wing 0.68 (0.64-0.73, n = 5) mm. 



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

 segmentsinproportionof 13:8:8 :10:10:10:10:10 :1 1:1 1:14:15 :21,anten- 

 nal ratio 0.91; distal sensory tufts present on segments iii, viii-x. 

 Palpal segments in proportion of 8:16:16:7:8, third segment slightly 

 swollen, 1.9 (1.7-2.1, n=4) times as long as greatest breadth, with a 

 large, irregular, open sensory area on mesal side. Mandible with 

 13 (n=5) teeth. 



Figure 77. — Culicoides imitator Ortiz, a-e. Female: a, wing; b, thoracic pattern; c, tibial 

 comb; d, palpus; e, spermathecae. /, g, Male:/, parameres; g, genitalia, parameres re- 

 moved. 



