262 



PROCEEDINGS OF THE NATIONAL MUSEUM 



Table 4- — Systematic arrangement of Panama species of Culicoides with certain 

 quantitative characters — Continued 



{note: Except for segments having sensoria, mean values are shown. Asterisk denotes doubtful 

 position of species In group. Parentheses enclosing segment numbers Indicate these segments 

 sometimes have sensoria) 



Subgenera, groups, and species 



Culicoides (Oecacta) — Con. 

 The debilipalpis group 



71. gabaldoni 



72. spurius 



73. hoffmani 



74. imitator 



75. paraensis 



76. debilipalpis 



77. mirsae 



78. aureus 



79. ginesi 



80. glabrior 



The pachymerus group 



81. almirantei 



82. caprilesi 



83. pachymerus 



84. uniradialis 

 The arubae group 



85. arubae 



The stigmalis group 



86. stigmalis 

 Culicoides (Macfiella) 



87. phlebotomus 



88. willistoni 



Wing 

 length 

 (mm.) 



0. 65 

 0. 72 

 0. 76 

 0. 68 

 0. 78 

 0. 80 

 0. 78 

 0. 89 



0. 80 



1. 02 



0. 79 

 0. 83 

 0. 72 



0. 94 



1. 17 



0. 90 



1. 03 

 0. 92 



Costal 

 ratio 



0. 62 

 0. 58 

 0. 59 

 0. 53 

 0. 59 

 0. 65 

 0. 61 

 0. 63 

 0. 62 

 0. 68 



0. 69 

 0. 78 

 0. 71 

 0. 79 



0. 52 



0. 64 



0. 55 

 0. 55 



An- 

 tennal 

 ratio 



0. 91 

 0. 84 

 0. 79 

 0. 91 

 0. 77 

 0. 83 

 0. 70 

 0. 76 

 0. 74 



0. 89 



1. 25 

 0. 61 

 0. 66 

 0. 65 



0. 87 



0. 91 



1. 19 

 1.06 



No. 

 tibial 

 spines 



Key to the Panama Species of Culicoides 



(Primarily for Females) 



1. Second radial cell wholly or mainly included in a light spot .... 2 

 Second radial cell wholly included in a very dark spot 22 



2. Base of cell M4 pale bordering veins M3+4 and Cui or apices of veins 



Ml and M2 pale 3 



Base of cell M4 and adjacent veins in a dark area; apices of veins Mi 

 and M2 not pale 9 



3. Cell R5 with a separate pale spot present anterior to base of vein Mi . 4 

 Cell R5 without a separate pale spot present anterior to base of vein Mi, 



pale area continuous from r-m crossvein to borders of vein Mi . . 6 



