NOTES ON CULICIDAE. 



223 



Aedes uncus, Theo. (fig. 8 d). 



This species was described by Theobald from a single female from Selangor ; it is 

 impossible to say what male really belongs to it, but for convenience I have associated 

 with it two males from Dr. Leicester's collection. 



Aedes singularis, Leic. (fig. 8 c). 



A male of this species, agreeing well with Leicester's type from Kuala Lumpur, has 

 been received from Kuching, Sarawak {J. C. Moulton). This is the only species of 

 this group which I have seen from more than one country, but the fact that one at 

 least is not confined to a small area would seem to indicate that we are here dealing 

 with distinct species and not with mere local races. 



Subgenus Skusea, Theo. 

 Skusea pembaensis, Theo. 



Ochlerotatus pembaensis, Edw., Bull. Ent. Res. v, p. 277 (1915). 



I have previously (Bull. Ent. Res. iv, p. 229, 1913) mentioned S.funerea as the type 

 species of Shisea, but in doing so had overlooked the fact that Blanchard had already 

 designated S. pembaensis as the type. The male oifunerea is apparently still unknown, 

 but it is probable that it will prove to be allied to S. pembaensis in respect of the palpi 

 and genitalia. 



Skusea amesii, Ludlow. 



Stegomyia amesii, Ludlow, J. N. Y. Ent. Soc. xi, p. 139 (1903). 

 Stegomyiafusca, Leic, Cul. of Malaya, p. 92 (1908). 



Fig. 9. Male genitalia of Skusea : — (a) 8. amesii, Ludl. ; 

 (b) S. simplex, Tneo., ventral view ; (c) S. simplex, Tiieo., 

 side view of side-piece ; (d) 8. longirostris, Leic. 



This species is included here for want of a better place ; it resembles Stegomyia 

 except for the almost uniform dark colouring, but the genitalia are very remarkable 

 in having two basal lobes to the side-pieces ; one, dorsal, forming the harpagone ; 

 the other, ventral, bearing five long processes. These processes are perhaps homo- 

 logous with those of pembaensis and simplex ; if this is so, their apical position in 

 these two species is only secondary. The genitalia of S. amesii are shown in fig. 9 a. 

 I believe the synonymy given above is correct, though the only male specimens I have 

 seen are from the Malay Peninsula. Li any case, when Skusea and Stegomyia are 

 regarded as subgenera of Aedes, Leicester's name is preoccupied by Osten-Sacken's 

 Aedes fuscus. 



