334 
A Monograph of Culicidae. 
9 . Head with narrower, creamy, curved scales, with deep 
ochraceous yellow upright forked ones behind, and with numerous 
golden-brown bristles, and a narrow line of pale scales round the 
eyes; proboscis darker than in the $, and the palpi are dark 
brown, with a pale spot in the middle, and white scales at the 
apex; antennae brown, the basal joint bordered with yellow 
scales, and with creamy rings at the base of the verticils. 
Wings with five brown spots, due to accumulations of brown 
scales, the spots placed as follows: at the base of the two fork- 
cells, the base of the second long vein, and two at the cross-veins, 
which often look as one, owing to their unition; first sub¬ 
marginal cell considerably longer but very little narrower than 
the second posterior cell, its base nearer the base of the wing 
than that of the latter ; stems of the two fork-cells nearly equal ; 
that of the second posterior perhaps a little the longer, that of 
first sub-marginal equal to about half the length of the cell, that 
of the second posterior nearly equal to the length of the cell; 
the scales on the costa and roots of the veins black, those on 
the costa mixed, with scattered white ones.- Ungues equal and 
simple. 
Length .—10 to 13 mm. 
Habitat. —Common throughout Europe, from Scandinavia to 
Italy, and also occurs in India (Punjab). Osten-Sacken records 
this species from North America. The following note occurs 
on C. annulatus* : “Mexico. Ciudad in Durango, 8100 feet 
(Forrer). A single 9 from Ciudad agrees very well with this 
species.” 
Time of capture. —In Punjab, in November; in Europe, in 
April, May, June, and on to October. 
Observations. —It is one of our largest mosquitoes, and seems 
to be subject to some variation, according to Ficalbi. Ficalbi 
also says that this species feeds off the juices of plants, and does 
not attack animals or man. 
The Culex penetrans of Desvoidy is thought by Giles and 
Ficalbi to be a variety of this species; it has not been noticed by 
any other observer since he described it in 1827 ; but Desvoidy 
expressly states that it differs from C. annulatus in having fili¬ 
form palpi in the male, and the abdominal banding being apical, 
not basal. I prefer to look upon it as a distinct species. 
C. affinis, Stephens, and C. variegatus, Schrank, are synonymous. 
* Biolog. Centrali Americana, Dipt. vol. i. p. 5, and Cat. Dipt. 
N. America, p. 18. 
