4G A Monograph of Culierdae. 
and white collar. When full grown the colour is variable, light 
brown, almost black or greenish, the head being generally mottled 
brown. Just before becoming a pupa it turns pale and looks very 
fat and smooth ; at this stage I have taken it,” says Mr. Aitken, 
“for a different species.” 
The frontal hairs are simple filaments, 
much as in the larva of Chaudoyet. 
They feed generally on the surface, 
but dive now and then. They greedily 
devour the dead bodies of their own 
species, and will kill and eat weakly speci- 
mens. Col. Giles’s figure of the frontal 
hairs (fig. 4, a) is quite wrong ; they are as 
Fig. 24. shown in fig. 24. 
Frontal hairs of larva of 
Te ea Synonymy.——Donitz recently described 
this species as A. vagus, from Sumatra. 
It is certainly only Rossi (Giles); the characters by which 
‘Dénitz separated it shows he has not examined a large series 
of Rossii. My figure of the wing also seems to have inten- 
tionally misled him. There is a small spot on both sides of the 
cross-veins on the third vein; unfortunately,.in my description, 
and also in the figure, I omitted this. It is not, however, always 
present, but is certainly typical. The type specimens of this 
insect which I re-described were not very good specimens.* The 
presence of the small wing spot seems to have formed one 
character of Donitz’s vagus. If he had consulted the second 
edition of Giles’s book, he would have seen this figured (Fig. 11 ; 
Plate IX.), yet not the one on the other side of the cross-vein ; 
this I have also seen absent. My figure (No. 115, Vol. I.) 
should have, as usual, the sub-costal ending after the T-shaped 
spot, not as it is there drawn. 
The spotting of the wing is subject to some variation; the 
typical form is shown, however, in the figure (p. 45) taken from 
a photograph given here. The spots on the wing fringe vary, as 
I have pointed out elsewhere, they evidently fade from what 
collectors have told me; the one at the end of the sixth vein 
frequently seems to be absent. (Vide also Plate III.) 
* One type actually proved to be not even a true Anopheles, but con- 
stitutes a new genus Aldrichia. 
