6 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 124 



Abdomen: Dark brown. Spermathecae (fig. lc) 2 plus rudimentary 

 spermatheca and ring; subequal, each measuring 0.047 x 0.036 mm; 

 deeply sclerotized, ovoid, tapering to short sclerotized necks. 



A lale. — Unknown. 



Types.— Holotype female: Lago Buey, Paramo de Purace, Cauca, 

 Colombia, 3250 m, Oct. 28, 1964, V. H. Lee, biting man, USNM 

 type no. 69396. Paratypes, 20 females: 9 females, same data as type; 

 11 females, 28.4 km east of Purace, 3100 m, Feb. 18, 1965, V. H. Lee, 

 at light. 



Remarks. — This is the most brightly marked of the three Andean 

 species of Avaritia, and is distinguished easily from the others by the 

 definite pointed distal pale spot in cell Ml and by the proximally 

 pale tibiae. Structurally, C. andicola closely resembles C. orjuelai, new 

 species, with sensorial pattern in, xi-xv, and wing length 1.51 mm, 

 but differs from that species in its broader third palpal segment, 

 lower antennal ratio, and fewer mandibular teeth. 



Culicoides orjuelai Wirth and Lee, new species 



Figures Id-g; Plate 1 (fig. 2) 



Female. — Length of wing 1.52 (1.47-1.58, n=3) mm. 



Head: Eyes hairy, contiguous (fig. Id), meeting for a distance equal 

 to the diameter of 2 facets. Antenna (fig. le) with lengths of flagellar 

 segments in proportion of 17-12-12-12-13-13-15-15-22-22-26-29-42, 

 antennal ratio 1.27 (1.25-1.28, n=3); xi-xv all stout to apices; distal 

 sensory tufts present on in, xi-xv. Palpal segments (fig. If) with 

 lengths in proportion of 6-29-22-12-13; third segment slightly swollen 

 distally, 3.5 (2.8-46, n=3) times as long as greatest breadth, with 

 small, round, shallow, distal sensory pit. Proboscis moderately long, 

 P/H ration 1.08; mandible with 25 (23-29, n=6) teeth. 



Thorax: Unicolorous dark brown. Legs dark brown, tibiae without 

 proximal pale rings; hind tibial comb with 5 spines, the one nearest 

 the spur longest. 



Wing (pi. 1: fig. 2): Pattern as figured; pale areas much reduced; 

 a very faint pale area over basal arculus ; a small pale spot centered on 

 r-m crossvein, not extending anteriorly past radius; poststigmatic 

 pale spot in cell R5 very small and oblique, transverse, including 

 only distal fourth of second radial cell; a very faint indistinct pale area 

 distally in anal cell. Macrotrichia very sparse and scattered on distal 

 half of wing including some in cell M4; costa extending to 0.63 (0.62- 

 0.65, n=3) of distance to wing tip; radial cells subequal in length, with 

 distinct lumens, the second much broader. Halter pale. 



Abdomen: Dark brown. Spermathecae (fig. \g) 2 plus rudimentary 

 spermatheca and ring; slightly unequal, measuring 0.055 x 0.036 mm 



