DIPTERA. 809 
epistoma slightly prominent : eyes bare: palpitawny ; feelers tawny ; third 
joint short, more shallow towards the tip, about half the length of the face, 
a little more than twice the length of the second; sixth stout, feathered 
to the tip with long hairs, twice the length of the third: chest with a dull 
pale fawn-colour covering, and with four black stripes, the outer pair broader 
than the inner pair: seutcheon and abdomen dull testaceous with pale re- 
flections : abdomen obconical, a little longer than the chest, with a black 
stripe which tapers from the base to the tip: wings gray, brown beneath the 
fore border and along the veins ; prebrachial yein forming a hardly acute 
angle at its flexure which emits a short branch, bent inward a little beyond 
this, and almost straight from thence to its tip; lower cross-vein with the 
two curves which are distinct: alule dingy white with pale yellow borders. 
Length of the body 4 lines ; of the wings 9 lines. 
Brazil. 
DEXIA NOTATA. 
Cana; thorax nigro bivittatus, scutello subferruginco ; abdomen cine- 
reum; antenne nigre, basi ferruginee ; pedes nigri, longi; ala 
cinerea. 
Hoary : head clothed behind and beneath with white hairs, red about 
the face ; frontalia pitchy, almost linear: mouth black, shining, ferrugi- 
nous at the tip: feelers black; first and second joints ferruginous ; sixth 
clothed with short black hairs: chest with two very broad black stripes, each 
of which includes an indistinct pale brown streak : scutcheon with a ferru- 
ginous covering : abdomen cinercous : legs long, black, slender ; thighs with 
a hoary tinge: wings gray; veins black, tawny at the base and along the 
fore border; cross-veins bordered with dark brown ; prebrachial vein form- 
ing a right angle at its flexure, curved inward near this, almost straight 
from thence to the tip which joins the cubital vein; lower cross-vein with 
three curves, the first and the third slight and inward, the middle one deep 
and outward: alule white with pale yellow borders: halteres pale red. 
Length of the body 23 lines ; of the wings 5} lines. 
New South Wales. 
