7. SARGUS 167 



*10 (9) Abdomen with the short red-orange pubescence extending widely 

 on to the disc so that only a middle line is left clear. Thorax 

 entirely orange haired on the disc. 4 rufipes. 



*11 (8) Thorax all black haired down the 

 broad middle part of the disc. 

 Abdomen without any short red- 

 orange pubescence. Legs orange 

 at the knees only. 6 nitidus. 



12 (7) A conspicuous outstanding postocular 



fringe present (fig. 137). 

 *13 (14) Postocular fringe mainly black. 



Wings with a conspicuous cloud 



about the middle. Small species. 



7 nuheculosus. 

 *14 (13) Postocular fringe all white. Largish 



. Fio. 137. — Sargus cwprarins $. x 22. 



species. 



15 (16) Wings with a conspicuous cloud about the middle. 8 cuprarins. 



16 (15) Wings infuscated but without a conspicuous cloud about the 



middle. 9 iridatus. 



Females. 



1 (8) Legs nearly all orange. No outstanding postocular fringe present. 



2 (3) Cox?e orange. Base of the abdomen beautifully red-orange. 



Thorax with the humeri and a narrow side line yellowish; 

 front femora immaculate. 1 bipundatus. 



3 (2) Coxae black. Abdomen at the base, humeri, and sides of the 



thorax concolorous with the rest. 

 *4 (5) Front femora immaculate. 4 rufipes. 



*o (4) Front femora with at least a dark splash or ring about the 



middle. 

 *6 (7) Medium - sized species. Front femora with moderate dark 



marking. 3 Jlavipes. 



*7 (6) Small species. Front femora with extensive dark marking. 



5 minimus. 



8 (1) Legs nearly all black (S. nitidus is doubtful). 

 *9 (10) No outstanding postocular fringe present. Wings without a 

 conspicuous cloud about the middle. 6 nitidus. 



10 (9) A conspicuous outstanding white postocular fringe present. 

 *11 (12) Small species. Wings with a conspicuous cloud about the 

 middle. 7 nuheculosus. 



*12 (11) Largish species. 



13 (14) Wings with a conspicuous cloud about the middle. 



8 cuprarius. 



14 (13) Wings without a conspicuous cloud about the middle. 



9 iridatus, 



* Unsatisfactory distinctions. 



