BITING MIDGES — WIRTH AND BLANTON 



317 



group near galindoi on the basis of antennal sensorial pattern and male 

 genitalia structure, on external characters it can readily be distin- 

 guished from antefurcatus by its subapical pale rings on the hind 

 femur, swollen third palpal segment, only one pale spot in the distal 

 portion of the anal cell and no pale spot in cell M2 in front of the 

 mediocubital fork. 



21. Culicoides crescentis, new species 



Figure 24 



Female: Length of wing 0.95 (0.86—1.02, n=8) mm. 



Head. — Eyes narrowly separated, bare. Antenna with segments in 

 proportion of 17:10:11:10:11:10:10:11:23:23:25:26:36, antennal ratio 

 1.48; distal sensory tufts present on segments iii, xi-xv. Palpal 



^ Y/IMIi'"" 



Figure 24. — Culicoides crescentis, new species, a-e, Female: a, wing; b, thoracic pattern; 

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

 removed. 



475684 0-59 



