Genus Anopheles. 
149 
Notes on the Sinensis Group. 
The species described by Wiedemann in ‘ Aussereurop. Zwei- 
fliigel. Insekten,’ p. 547, in 1828, under the name of Anopheles 
Sinensis, came from China, and specimens that I have examined 
from there and Formosa clearly agree with the meagre description 
Wiedemann gives. This I take as the type of this group, which 
contains the A. annularis of Van der Wulp, described in the 
‘ Leyden Museum Notes,’ vi. p. 249, from Mount Ardjoeno, East 
Java. Van der Wulp states that his species may be identical 
with W iedemann’s A. Sinensis. The description will be seen to 
differ, in that the legs are said to be testaceous by Van der Wulp, 
and the description of the costa being alternately spotted with 
dark brown and white might suggest a different species. Not¬ 
withstanding these apparent differences, I concur in Van der 
Wulp’s suggestion that A. annularis is the same species as Wiede¬ 
mann’s ; but after examining specimens from Formosa, and 
Malay Peninsula and Archipelago, I have placed those from the 
latter places, namely, Van der Wulp’s A. annularis, as a sub¬ 
species of Wiedemann’s species, the differences having been pre¬ 
viously pointed out (p. 144). 
Walker’s A. vanus, described in 1860 in the ‘Journal of the 
Proceedings of the Linnaean Society of London,’ iv. p. 91, is again 
closely related to A. Sinensis, and, as far as I can judge from the 
single £ type in the British Museum, is the same as the A. an¬ 
nularis of Van der Wulp, although I have never seen one of the 
latter with only basal tarsal banding (no such banding can now, 
however, be seen in the type), which in all other respects agrees 
with Mr. Wray’s specimens from Taipang. 
In 1845 Loew described an Anopheles from the coast of Asia 
Minor, opposite the Isle of Rhodes, under the name of A. pictus 
(in ‘ Dipt. Beitriige ’), which answers in all respects to Sinensis, 
except that the fringe is alternately black and white; for this 
reason I consider it may be distinct, although evidently related 
to this group. As I have not seen a specimen with a similar 
fringe I cannot give an opinion. 
In 1899 Grassi described a dark Anopheles from Italy, 
A. pseudopietus. On comparing this with specimens from China, 
Malay Peninsula, and India, I can detect no differences of 
specific importance when we consider the variability of members 
of this group. Plead, thorax, abdomen, and legs agree with A. 
Sinensis, and also the cross veins of the wings; but the lengths 
