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A Monograph of Culicidae. 
mingled white and black, the former largely preponderating; 
fringe scales entirely white. 
Thorax dark brown grounded, clothed with white ferruginous 
and almost black curved scales, which very probably produce a 
definite ornamentation which appears to reproduce the two pale 
stripes of Mansonia dorsalis (Meig.).* 
Abdomen generally pale, clothed with a mixture of white, 
with a few ferruginous scales, the former forming an almost pure 
white median line, while the latter are mainly confined to the 
sides. In addition, there are on all but the last segments a pair 
of L-shaped dark brown spots, the horizontal limbs of which form 
an apical dark border to the segments, interrupted by the 
median white line. 
Legs brindled, with black, white, and ferruginous scales, 
giving a generally rather dark effect, with snowy knee-spots and 
three fairly broad, articular, ferruginous bands on the tarsi 
(rather variable). 
Proboscis dark at the tip and absolute base, and quite pale in 
the middle, but still not definitely banded. 
Head mainly covered with white forked scales. Antennae 
of $ ferruginous, of 9 with almost white plumes. 
Palpi of almost white, with darker spots at the joints and 
in middle of long second joint; of 9 dark brown. Scutellum 
with white and ferruginous scales; pleura ferruginous, with 
some white tufts; venter mainly white scaled, sides of abdomen 
densely fringed with long brown hairs. A fairly large mosquito. 
The 9 has a median, ferruginous, abdominal stripe, and the 
L-shaped spots so large as to be almost continuous laterally, and 
in both the marking is generally darker than in the $ 
Locality .—Island of Barhain, H. Arabia. 
Genus MANSONIOIDES. Theobald (1907). 
Mono. Culicid. IV., 498 (1907). 
Two species are described in this genus :— 
Thorax tawny yellow, with four round snow- 
white spots and traces of a fifth spot .. annulifera. Theobald. 
Thorax golden-brown, with seven silvery-white 
spots and silvery scutellum ... septemguttata. Theobald. 
Presumbly Giles means Grabhamia dorsalis , Meig. 
