﻿AFRICAN CULICIDAE, OTHER THAN ANOPHELES. 29 



16. Abdominal segments with basal banding in both sexes (in C. decens Q 



the pale bands are often very narrow) ... ... ... ... 17. 



Abdominal segments with basal lateral pale spots, in the c? often 

 united in the middle forming an irregular shaped band ... ... 19. 



17. Larger species ; abdominal bands yellowish ; a line of white scales 



on the under side of the last two joints of the male palpi 



15. pipiens group. 

 Smaller species ; abdominal bands white ... ... ... ... 18. 



18. Thoracic scaling uniformly reddish brown, c? palpi all dark 16 decens. 

 Thoracic scaling partly bronzy-brown and partly brassy, the latter 



often predominating; male palpi as in C. pipiens 17. simpsoni. 



19. Thorax all pale-scaled, integument with lateral pale areas in front ; 



abdominal spots large in both sexes ... ... ... 18. pruina. 



Thorax not all pale-scaled, integument uniformly dark ... ... 20. 



20. Thorax with two distinct pale areas near the middle.. .19. ornatothoracis. 

 Thorax with uniform scaling or nearly so ... ... ... ... 21. 



21. Venter entirely whitish ... ... ... ... ... ... 20. guiarti. 



Yenter with dark bands on the apices of the segments ... ... 22. 



22. Bases of fork-cells in Q equidistant from wing base ... 21. grahami. 

 Base of first fork-cell nearer wing-base than that of second... ... 23. 



23. Larger species (usual 5-6 mm.) ; thorax with reddish brown scales 



(intermediates seem to occur between this and some of the 



C. pipiens group) ... ... ... ... ... 22. zombaensis. 



Smaller species (usually 3-4 mm.) ; thorax with dark brown scales 

 (compare with C. guiarti; both often have a green thorax) 



23. i?widiosus. 



24. Abdomen with complete apical bands on at least some of the segments 25. 

 Abdomen with apical lateral spots ... ... ... ... ... 27. 



25. Terminal joint of Q palpi short and thick ... ... 24. sa.lisburiensis. 



Terminal joint of Q palpi long and thin ... ... ... ... 26 



26. Abdominal segments 2-7 with apical pale bands ... ...25. piliferus. 



Abdominal segments 2-5 „ „ ... ...26. insignis. 



27. Thoracic integument black, scales black or blackish... ... 27. rima. 



Thoracic integument reddish ... ... ... ... ... ... 28. 



28. Scales and bristles of thorax reddish brown ... ... ...28. sergenti. 



Scales and bristles of thorax black ... ... ... 29. rubinotus. 



1. C. quasigelidus, Theo., Mon. Cul. Ill, p. 181 (1903). 



Add to synonymy : Culex par, Newst., Ann. Trop. Med. I, p. 25 (1907). 

 The leg-spots are quite distinct. The front of the meson otum is whiter than 

 usual. 



Additional locality : Gold Coast. 



2. C. consimilis, Newst., Ann. Trop. Med. I, p. 23 (1907). 



Additional localities: Brit. E. Africa (T. D. Nair) ; Gold Coast (Dr. A. 

 Ingram). 



