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PROCEEDINGS OF THE NATIONAL MUSEUM 



xi-xv. Palpal segments in proportion of 9:23:33:13:17, third 

 segment 2.8 (2.5-3.5, n= 19) times as long as greatest breadth, sensory 

 pit broad and shallow, more or less subdivided into small pitted areas. 

 Mandible with 21 (20-23, n = 20) teeth. 



Thorax. — Mesonotum with prominent pattern, yellowish in center, 

 two dark sublateral vittae. Legs dark brown with pale rings on fore 





Figure 9. — Culicoides insignis Lutz. a-e, Female: a, wing; b, thoracic pattern; c, palpus; 

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

 moved. 



and mid knees and at base and apex of hind tibia; hind tibial comb 

 with six spines. 



Wing. — Pattern as figured, one pale spot in cell Mi distal to the 

 pale spot straddling vein M2; crossvein r-m dark, vein R4+5 dark up to 

 the point where it turns abruptly forward to meet the costa. Macro- 

 trichia sparse on distal half of wing and in anal cell; costa extending to 

 0.65 (0.63-0.68, n = 24) of distance to wing tip. Halter knob dark. 



