﻿16 F. W. EDWARDS — A SYNOPSIS OF THE SPECIES OF 



2. First (i.e., metatarsus) and second tarsal joints only with white bands, 



that on the second joint much the broader ... ... ... 3. 



All joints of hind tarsi with white bands ... ... ... ... 4. 



3. Thorax with a double median row and lateral patches o£ flat metallic 



silver y scales ; head silver-scaled ... ... ... 1. long ipal pis. 



Thorax laterally and head with whitish narrow-curved scales. 2. ivettmani. 



4. Tarsal bands on both ends of joints ... ... ... ... ... 5. 



Tarsal bands on bases of joints only ... ... ... ... ... 10. 



5. Small species (about 4 mm.) ; tarsal bands clear white and almost 



entirely at the apices of the joints ... ... ... ... 6. 



Larger species (about 6 mm.) ; tarsal bands yellowish white and 



equally distributed on each side of the articulations ... ... 8. 



6. Thorax, and hind femora before the apex, with small silvery spots... 7. 

 Thorax and hind femora without silvery spots, except at apex of the 



latter... ... ... ... ... ... ... 3. apicoanuulatus. 



7. Spots of thorax composed of broad flat scales ; fore and mid femora 



with a silvery spot before apex ... ... ... 4. marshalli. 



Spots of thorax composed of narrow curved scales, wings with a 

 silvery spot at base of costa ; fore and mid femora unspotted. 



5. simulans. 



8. Thorax brown with two whitish longitudinal stripes... ... 6. dorsalis. 



Thorax almost uniformly brown or brassy brown ... ... ... 9. 



9. Abdomen almost all pale brown ... ... ... 7. longisquamosus. 



Abdomen dark brown banded with white ... ... 8. pulcr it arsis. 



10. Legs marbled, female palpi brownish, white-tipped ... ... ... 11. 



Legs not marbled, female palpi black, with a distinct white ring in 



middle ... ... ... ... ... --. 9. fascipalpis. 



11. Wings mottled with black and white scales ; dark species .. ... 12. 

 Wings not mottled ; more brownish species ; costal fringe whitish 



beyond middle ... ... ... ... ... 10. hirsutus. 



12. Abdominal segments with apical lateral yellowish spots. 11. durbanensis. 



/ 12. nigeriensis. 

 Abdominal segments without such spots ... ...< ? 12a. sudanensis. 



V. 12b. caballus. 



13. Scutellum clothed with white or silvery scales, normally all flat, or 



head covered mostly with flat scales ... ... ... .. 14. 



Scutellar scales neither flat nor white, head with only narrow scales 



in middle ... ... ... ... ... ... ... ... 24. 



14. Scutellar scales all white or silvery white and all flat (except in 



varieties of O. minutus) ... ... ... ... ... ... 15. 



Scutellar scales partly black, some narrow ; head mostly flat-scaled 23. 



15. Hind femora with a round white spot before the apex ... ... 16. 



Hind femora without such spot ... ... ... ... ... 17. 



16. Mid femora also with white spot before apex... 13. argenteopunciatus. 

 Mid femora without such spot ... ... ... ..., 14. domesticus. 



17. Thorax with four silvery spots ... ... ... 15. punctothoracis. 



Thorax without silvery spots ... ... ... ... ... ... 18. 



