156 
A Monograph of Culicidae. 
vein; fore ungues unequal, the larger one twice-toothed ; mid 
and hind equal and simple, the mid rather the longer. 
Anopheles Rossii, Giles. 
Palpus of the d ; thorax of the ? ; costal border 
of wing of the $ and d ; fore and hind ungues 
of the cT. 
Length. —4 • 5 to 5 • 5 mm. 
Habitat. —Calcutta (Daniels) (7. 4. 1899, 6. 3. 1899); Madras 
(Cornwall); Lucknow (Giles) ; Quilon (Travancore) (James) (7. 3. 
1900); Singapore (Hanitsch) (22. 7. 1899); Perak (Wray) 
(22. 11. and 21. 12. 99); Behar, Bengal (Green) (88). 
Time of appearance. —November and December to March in 
Madras ; April at Lucknow (Giles). 
Observations. —A distinct pale species, in which the mid 
costal spot has a dark patch on the first long vein beneath its 
middle, forming a distinct T-shaped spot. In some specimens a 
small additional black spot may be seen at the side of the stem 
of the T, and is nearly always present in the £ . Grassi considers 
this species a sub-species of his A. superpictus , on what grounds 
I fail to see. In A. superpictus —at least in the type sent to the 
Museum by Grassi—the costal spots are uniform, no T-shaped 
spot being seen; but as that is only a colour variation, probably 
Grassi does not consider it sufficient; but there is considerable 
difference in the venation. In superpictus the posterior cross- 
vein is distant about its own length from the mid cross-vein; in 
Rossii it is twice its own length distant. In superpictus the veins 
