BITING MIDGES — WIRTH AND BLANTON 



311 



tized basal arms forming a narrow basal arch, anterior sclerotized 

 membrane absent; distal stem, tapering to a very slender, pointed 

 apex. Parameres separate, each with bent, knobbed base, slightly 

 sinuate, slender stem and very slender, recurved, simple, pointed apex. 



Distribution: Panama. 



Panama records: 



CniRiQuf Province: Volcdn (type locality). 



Discussion: This species resembles chrsyonotus Wirth and Blanton 

 in leg and mesonotal markings and general wing pattern, but differs 

 from chrysonotus and resembles nigrigenus in having a greatly swollen 

 third palpal segment, sensoria on all proximal antennal flagellar seg- 

 ments, and more extensive pale wing markings, although markings 

 are never so extensive as in nigrigenus. 



Figure 21. — Culicoides lutealaris Wirth and Blanton. a-e. Female: a, wing; b, thoracic 

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

 parameres removed. 



