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SOME NEW. WEST AFRICAN SPECIES OF ANOPHELES 
(SENSU LATO), WITH NOTES ON NOMENCLATURE. 
By F. W. Epwarps, B.A. 
(Published by permission of the Trustees of the British Museum.) 
In describing the following new species from West Africa, some words of 
explanation are needed as to the generic names used. In the first place, it is 
necessary to say that the writer follows Messrs. Dyar and Knab in considering 
that most of the genera into which Meigen’s genus Anopheles has recently been 
split up are not genera in any accepted sense, and should sink under the old name 
Anopheles. Provisionally, however, Stethomyia, Chagasia, Calvertina and Bironella 
are considered as distinct ; as none of these genera are African, this will not 
affect the present paper. Lieut.-Col. A. Alcock, of the London School of Tropical 
Medicine, has kindly allowed me to see the manuscript of a paper on the classi- 
fication of Anopheles, which he is about to publish in the Annals and Magazine 
of Natural History, and I have been able to concur entirely with his views; he 
recognises only five sub-genera of Anopheles, the sub-genus Nyssorhynchus including 
all those species with flat scales on thorax and abdomen, ie., the genera 
Nyssorhynchus, Cellia and Neocellia of Theobald’s Monograph. 
It may be as well to point out that whether this course be adopted or not, 
certain other changes of nomenclature will be necessary. In his original paper on 
the classification of the ANOPHELIN® (Journ. Trop. Med. II., 1902, p. 181), 
Theobald designated Anopheles rossi as the type of his genus Grrass/a (Myzomyia, 
Blanchard), and A. argyrotarsis as the type of TLaverania (Nyssorhynchus, 
Blanchard). Although he subsequently (Mon. Cul. III., pp. 12-14) altered the 
type-species, the original types must stand, having once been published. This 
means that James’ Nyssomyzomyia must sink as a synonym of Myzomyia, and 
Theobald’s Cellia as a synonym of Nyssorhynchus. Tf it is desired to retain 
as distinct the group James has called Nyssomyzomyia, it must be known as 
Myzomyia, and the species included under Myzomyia by James must be given 
anew name. Inthe same way Theobald’s Cellia becomes Nyssorhynchus, while 
if the group Nyssorhynchus (as used by Theobald in the fifth volume of his 
Monograph) be retained as a genus or sub-genus, it will also require renaming. 
It should further be noticed that in his paper on the Indian ANOPHELIN™® (Rec. 
Ind. Mus., Vol. [V., No. 5, Nov., 1910), Captain James has incorrectly cited 
the type-species of the genera Myzomyia, Pyretophorus, Nyssorhynchus, Cellia 
and Myzorhynchus. Captain James says of the genus Stethomyia, “ probably all 
the species now assigned to it would come in my new genus Neostethopheles.” If 
this is the case, Nevstethopheles sinks as a synonym of Stethomyia. I have 
examined the types of A. atthent and A. immaculata in the British Museum ; 
the former appears to be a true Stethomyia, but the latter has head-scales of 
quite the ordinary type. 
BULL. ENT, RES. VOL. II., PART 2, JULY 1911. 
