﻿AFRICAN CULICIDAE, OTHER THAN ANOPHELES. 17 



18. Thorax whitish at the sides, blackish in the middle ; large species 



16. ornatus. 

 Thorax not whitish at the sides ; smaller species ... ... ... 19. 



19. Abdomen of female with distinct basal pale bands on all the 



segments ; hind tibiae not conspicuously white at apex. 17. alboventralis. 

 Abdomen of female all dark above (normally), though that of the 

 male has distinct silvery basal bands on all the segments ; hind 

 tibiae with a more or less conspicuous silvery white mark at the 

 apex ... ... ... ... ... ... ... ... ... 20. 



20. Head-scales (in female) nearly all dark 18. africanus. 



Head-scales largely pale ... ... ... ... ... ... 21. 



21. Claspers o£ male genitalia formed like a two-pronged fork, head 



scales whitish ... ... ... ... ... 19. albocephalus. 



Claspers of male genitalia not fork-like, swollen at the tip ... ... 22. 



22. Thoracic scales narrower, smaller, bronzy ochreous or yellowish 



more or less mixed with blackish brown ... ... 20. minutus. 



Thoracic scales broader, larger, dull ochreous ... 21. abnormalis. 



23. Black species ... ... ... ... ... ... 22. nigricephalus. 



Brown species ... ... ... ... ... ... ...23. irritans. 



24. Very yellow species, recalling Taeniorhynchus aurites, etc. 24. ochraceus. 

 Not yellow species (but a variety (?) of 0. nemorosus is all ochreous) 25. 



25. Abdominal segments with complete basal pale bands ... ... 26. 



Abdominal segments without complete basal pale bands ... ... 29. 



26. Wings, femora and tibiae more or less marbled ; Palaearctic species 



25. nemorosus. 

 Wings, femora and tibiae not at all marbled ; Ethiopian species ... 27. 



27. Hind claws of female simple ; thorax without distinct lines. 



26. quasiunivittatus . 

 Hind claws of female toothed ... ... ... ... ... ... 28. 



28. Smaller species, very dark ; thorax not lined ... 27. caliginosus. 

 Larger, lighter-coloured species ; thorax more or less ornamented 



with yellowish lines ... ... ... ... 28. dentatus. 



29. Large species ; thorax without distinct ornamentation ; hind tibiae 



with a small white spot at apex ... ... ... 29. cumminsi. 



Medium-sized species ; thorax with distinct short golden lines in 

 front of scutellum ; hind tibiae with a rather broad white band 

 at apex ... ... ... ... ... ... 30. leucarthrius. 



1. 0. longipalpis, Griinberg (Stegomyia), Zool. Anz. 1905, p. 383. 



Stegomyia pollinctor, Graham, An. Mag. Nat. Hist. (8) V, p. 271 (1910). 

 Kingia pollinctor, Theo., Mon. Cul. V,p. 628 (1910). 



This is a very distinct species which cannot possibly be confounded with any 



other, the general black colour and metallic silvery markings, with the peculiar 



markings of the hind tarsi, making it very distinctive. The female palpi are 



fully one-third as long as the proboscis, and somewhat swollen, and there are 



23527 B 



