BITING MIDGES — WIRTH AND BLANTON 



309 



a: D/iislioji 



Figure 20. — Culicoides nigrigenus 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. 



meres separate, each with abruptly bent, knobbed base, nearly 

 straight, slender stem and slender pointed apex abruptly bent laterad, 

 thence ventromesad. 



Distribution: Panama; Honduras, Nicaragua. 



Panama records: 



BocAS DEL ToRO PROVINCE: Almirante (type locality). 

 Panama Province: Cerro Campana. 



Discussion. — This species is similar to Culicoides decor (Williston), 

 which is known only from the type female from the island of St. 

 Vincent. According to notes on the type made by the senior author 

 at the British Museum (Natural History) in July 1957, decor differs 

 from nigrigenus in having the pale wing markings more restricted, in 

 the form of discrete rounded spots which are smaller than in the darkest 



