312 A Monograph of Culicidae, 
Abdomen black, with metallic deep violet scales, the segments 
with basal creamy to silvery-white lateral patches; the apical 
segment with an apical patch of silvery-white scales ; genitalia 
small, brown, not prominent ; venter with many silvery-white 
scales. 
Legs with the coxae ochraceous, with patches of flat white 
scales ; fore legs deep brown, with violet reflections ; mid legs 
with the second, most of the third and fourth tarsals white on 
one side, and also most of the other joints ventrally ; hind legs 
unadorned, mostly white beneath ; mid ungues simple, unequal ; 
hind equal and simple ; (fore 2). 
Wings with brown scales, large and Taeniorhynchus-like ; fork- 
cells long, the first sub-marginal longer and narrower than the 
second posterior, its base nearer the. base of the wing than that 
of the latter, its stem rather more than one-third the length of 

Fig. 172. 
Wing of Phoniomyia longirostris. @. Theobald. 
the cell; stem of the second posterior cell about two-thirds 
the length of the cell; posterior cross-vein more than half its 
length distant from the mid ; second long vein not carried past 
the marginal transverse. 
Length —3*5 mm. 
Habitat.—Sao Paulo (Dr. Lutz) ; Trinidad (Dr. Lassalle). 
Observations.—The male is very like the ?, but the antennae 
have rather longer verticillate hairs, and the ¢ genitalia at once 
separates it. 

Fig. 173. 
Wing of Phoniomyia longirostris. 9. Theobald. 
Synonymy.—I first described this insect from worn material ; 
when fresh specimens were received from Trinidad they presented 
