214 1^- W. EDWARDS. 



a complete white ring at the base ; second joint white except at the tip. First joint 

 of hind tarsi entirely blue-black, no trace of a white ring at the base. 



A series received from Zanzibar {Dr. W. M. Aders), some bred from larvae found 

 in a hole in a mango tree, 15. v. 1915 ; also 1 $ from Karonga, Nyasaland, ii. 1912 

 {Dr. A. G. Eldred). 



Type and other specimens presented to the British Museum by the Imperial Bureau 

 of Entomolog\\ 



Ochlerotatus (F.) melanopterus, (iiles. 



Finlaya melanoptera, Giles, J. Trop. Med. vii, p. 307 (1904). 



Popea palaivamnsis, Ludlow, Psyche, xxi, p. 31 (1914). 



In my paper on synonymy of Oriental Culicidae (Bull. Ent. Res., 1913) I included 

 F. melanoptera under 0. gubertiatoris, thinking that the tufts of long scales might not 

 be normal, but since Dr. Ludlow has now described other specimens which have the 

 same scale-tufts present, melanoptera is probably distinct from gubernatoris. 



Ochlerotatus (F.) lophoventralis, Theo. 



Pseudocarrollia lophoventralis, Theo., Rec. Ind. Mus. iv, p. 13 (1910). 



In giving this also as a synonym of 0. gubernatoris, I overlooked the fact that the 

 scutellum is uniformly and densely clothed with flat white scales, which is not the 

 case in the latter species ; there are some other differences, e.g., the white ring 

 at the base of the front metatarsus of 0. lophoventralis. Specimens have recently 

 been received at the Museum from Pusa {F. M. HoivUtt). 



Group Diceromyia, Theo. 

 Although in general ornamentation, as well as in the possession of peculiar scale- 

 tufts on the side-pieces of the male genitalia, the species of this group resemble 

 0. poecilia and its allies, they can hardly be included in the Finlaya group, since the 

 eighth abdominal sternite of the female is not prominent, the terminal joint of 

 the male palpi is minute and rounded, and the male genitalia are without 

 harpagones. The only species which can at present be referred here are 0. furcifer, 

 Edw. {Diceromyia africana, Theo.) and the following new form. 



Ochlerotatus (D.) adersi, sp. nov. (fig. 7 a). 



Closely allied to 0. {D.) furcifer, but diftering as follows : — Proboscis without a 

 definite pale ring, though there are numerous pale scales scattered over the basal half, 

 these being more plentiful than the dark ones in the male. Abdominal tergites with 

 sub-basal white lateral spots, which in some specimens are connected with basal 

 median white bands, but without any scattered pale scales on the apical parts of the 

 segments. There are more numerous yellownsh-white scales on the front part of the 

 mesonotum, but the scales on the scutellum are mostly black, instead of mostly white. 

 Male genitalia similar to those figured by Theobald for 0. furcifer, but the lateral 

 scale-tuft has become apical through the enlargement of the inner aspect of the side- 

 piece, and there is no apical hair-tuft such as is stated by Theobald to occur in 

 0. furcifer ; clasper as figured ; harpes short ; harpagones apparently absent. 



Zanzibar: Mnazi Moja, 8. v. 1916, bred from larvae in hole in almond tree, 2^ 2 $ 

 {Dr. W. M. Aders). 



