— 166 — 
and an irregular broad median dorsal line of the same. In some 
cases the pale scales cover the whole of the abdomen. Queensland, 
Brisbane (BANCROFT, XI); Nigeria (HANLEY, VII & VIII), males 
and females being very white; Seychelles. 
3. Var. Mosquito R. DESVOIDY. 
Culex mosquito R. DESVOIDY. 
« Dipt. Argentina », p. 60 (1891); Mono. Culicid., 1, p. 295 (1901). 
From DEsSvoIDY's description it seems that in the insect he des- 
cribed as Culex mosquito the thorax had only silvery spots and 
lateral semi-lunar silvery spots. Had the median pale parallel lines 
been present, he would have been sure to have mentioned them, 
unless he described a worn specimen. 
There exists, however, a distinct variety in which the two 
median lines are absent, and for this variety I retained DESVOIDY’s 
name Mosquito. 
VON REDER (« Stett. Ento. Zeit. », p. 388, 1885) referred to this 
as a synonym of /asciatus. 
It has been sent me from St. Lucia, Cuba, Jamaica (GRABHAM), 
Brazil and the Argentine; Calcutta; Singapore (BIRO); Philippine 
Islands (LUDLOW); Cyprus, Larnaka (BORDAN), and Greece, Poros 
(KRÜPER). 
4. Var. persistans BANKS. 
« Philippine Journal of Science », I, 9, 996 (1908). 
BANKS pointed out that in all the Philippine specimens he had 
seen there were additional white lines at the sides outside the 
curved silvery lateral lines. He mentioned these specimens as 
being a distinct species. 
This variation is also quite common in N.andS. American forms, 
also in those from the West Indies, and I have seen it in specimens 
from India and Fiji. 
Writing of this variation Miss LuDLOW (1908) says the differ- 
ences pointed out by BANKS in the Philippine specimens show 
merely on account of inaccurate descriptions of fasciata. I do not 
think this is necessarily so, for I have seen far more specimens 
without the extra lines than with. 
