NOTES ON CULICIDAE. 225 



Gold Coast {Dr. J. W. Scott Macjk). Subsequent re-examination of the British 

 Museum series of C. thalassius revealed one female of C. tritaeniorhynchus from 

 Weshiang, Gold Coast {Dr. H. F. Hamilton), and a further series representing both 

 sexes has since been received from Accra. 



I have previously stated (Bull. Ent. Res. iv, p. 233) some of the characters by 

 which C. tritaeniorhynchus may be distinguished from its two nearest allies, C. sitiens 

 and C. vishnui, but in doing so I overlooked- some of the most important, which are as 

 follows :— On the under side of the proboscis of the female the pale ring- is much 

 extended basally, though its edges are ill-defined ; often the basal three-fifths of the 

 proboscis is almost all pale beneath, and frequently near the base the pale scales 

 extend on to the side or even on to the dorsal surface, in which case the proboscis 

 may appear to have two pale rings. The tip of the male palpi is dark (in C. vishnui 

 It IS narrowly and in C. sitiens rather broadly pale). The long joint of the male palpi 

 has one narrow pale ring, and one broad one (in the two other species the two pale 

 rmgs are equally broad). Finally the wing scales of C. tritaeniorhynchus are longer 

 and narrower than in the other two. The African specimens are rather darker than 

 those from the Oriental region, and the basal ex^tension of the pale ring on the under 

 side of the proboscis is not always observable. 

 Culex thalassius, Theo. 



This seems to be the representative of C. sitiens m the Ethiopian region south and 

 west of Somaliland. The genitalia of the two are practically identical, and C. thalassius 

 seems only to differ in the absence of scattered pale scales on the femora and tibae. 

 C. accraensis and C. neotaeniorhynchus are, as I have already stated, synonyms of 

 C. thahssius, but I find I was m-ong in including C. Ufoliata here also ; after carefully 

 mounting and examining the genitalia of the two males on which Theobald based 

 his description of C. hifoliata, I find that one was really C. duttoni and the other 

 C invidiosus. 



Culex vishnui, Theo. 



Culex perplexus, Leic, Cul. of Malaya, p. 150 (1908). 



The type male and female of Leicester's C. perplexus have recently been presented 

 to the British Museum by Dr. A. T. Stanton, from the Kuala Lumpur collection 

 The male genitalia are identical with those of C. vishnui, and C. perplexus mav there- 

 fore be regarded as a variety of this species in which the thorax has more definite 

 markings than usual. C. vishnui is subject to a good deal of variation. 

 Culex whitmorei, Giles. 



Culex loricatus, Leic, Cul. of Malaya, p. 151 (1908). 



The type of C. loricatus has also been presented by Dr. Stanton, and proves to be 

 identical with C. ivhitmorei. 



Culex fuscocephalus, Theo. 



Culex uniformis, Leic, Cul. of Malaya, p. 159 (1908). 



The above synonymy is apparent from the description, aithoueh I have not seen 

 any of Leicester's specimens. The species seems to be widely ^distributed m the 

 Oriental region, specimens having been received from Dr. Stanton from Bancrkok 

 Kuala Lumpur, Batavia and Makasser. '^ 



