252f F. Vv. EDWARDS — THE AFRICAN 



seems probable that Dyar's Coqnillettidia is not properly separable from 

 Taeniorhynchus. The type species of the genus Chrijsoeonops, C. fulmis, 

 ■ Wied., has no connectian with the African and Oriental species associated 

 with it since the genus was founded ; it does indeed resemble them in 

 colour, but in structure it is nearer to Ochlerotatus than to Taeniorhynclms. 

 In the present writer's opinion Cule.v titillmis, Wlk., must be taken 

 as the type of Arrlbalzaga's genus, because it is quite evidently the 

 species which he describes, although he wrongly determined it as 

 C. taeniorhynchus, Wied. On this view, which is the reverse of that held by 

 Dyar and Knab, Mansonia becomes a synonym of Taeniorhynchus since 

 C. titillans was also the type of Mansonia. 



If C. taeniorhynchus, Wied., be taken as the type, Arribalzaga's careful and 

 complete description of Taeniorhynchus becomes inaccurate in many important 

 particulars ; this course, if adopted, would necessitate sinking CuHcelsa, P^elt, as 

 a synonym of Taeniorhynchus, and produce the anomaly of a genus none of 

 whose members possessed the generic characters. 



1. Violet-black species, thorax with pale scales in front ... metallicus. 

 Abdomen and legs yellow or partly yellow ... ... ... ... 2. 



2. Tibiae all black, abdomen all yellow ... ... ... ... niyrithorax. 



„ yellow, black-tipped, hind pair with a black ring in middle 3. 

 S. Wing scales both dark and light ... ... ... ... ... 4. 



„ „ all golden yellow... ... ... ... ... 3. aurites. 



4, Thorax with the anterior two-thirds rather densely clothed with 



pale golden scales ; joints of hind tarsi black at tips only annettii. 



Thorax uniformly clothed with sparse golden scales ; joints of hind 

 tarsi with, -broad black apical bands ... ... ... ... 5. 



5. Thoracic integument black, abdomen all yellow ... ... cristattis^ 



„ „ brown, abdominal segments with apical dark 



bands ... ... ... ... ... ... ... fuicopen?iatus. 



i. T. jnetallicus, Theo. (Culex), Mon. Cul. II, p. 63 (1901). 



? Culex nigrochaetae, Theo., c?, Mon. Cul. II, p. 60 (1901). 

 Banhsinella metallicus, Theo., Mon. Cul. V, p. 408 (1910), 

 Taeniorhynchus violaceus, Theo., Third Rep. Welle. Lab., p. 262 (1908). 

 Chrysoconops nigra, Theo., Mon. Cul. V, p. 434 (1910). 

 A very distinct species, easily recognised by the sub-metallic violet colour of 

 the abdomen, femora and tibiae, and the shining whitish area on the front of the 

 thorax. 



Sudan ; S. Nigeria ; Angola ; Uganda. 



2. T. nigrithoxax, Theo. Chrysoconops, Mon. Cul. V, p. 439 (1910). 

 Angola. 



3. T. aurites, Theo., Mon. Cul. II, p. 209 (1901). 



Chrysoconops aurites. Theo,, Mon. Cul. IV, p. 493 (1907). 



Somewhat variable, some specimens showing dark apical patches on some of 



the abdominal segments, others having the abdomen entirely yellow. The 



anterior legs are sometimes without any dark scales, sometimes with the tips of 



the joints black and the whole of the last two tarsal joints bi-ownish. T. aurites 



