DIPTERA. 271 
mouth black; palpi tawny: feelers ferruginous ; third and following joints 
black; third black and very convex above, hardly shorter than the sevond : 
chest and breast with a cinereous covering ; chest with four very slender black 
stripes ; scutcheon ferruginous : abdomen deep black, with whitish reflec- 
tions on each side of the tip: thighs with a hoary tinge beneath: wings 
gray ; veins black; prebrachial vein forming a very slightly acute angle 
at its flexure, near which it is much curved inward, straight from thence to 
the tip; lower cross-vein almost straight, but very slightly curved outward 
near the tip: alule white. Length of the body 44 lines; of the wings 
9 lines. 
Para. 
TacuIna BomBorIDEs, Mas. 
Cana; caput antice et subtus albidum ; abdomen apice luteo-hirtum ; 
pedes ferruginei, femoribus nigris ; ale cinerea, basi nigricantes. 
Hoary, clothed with whitish hairs: head whitish in front and beneath, 
with a very shallow slightly striated furrow which widens from the eyelets 
to the base of the feelers; peristoma pale yellow on the inside: proboscis 
black, ferruginous towards the tip; palpi slender, tawny: feelers black ; 
first and second joints pitchy; third shorter and much deeper than the 
second, very slightly convex above and below, rounded at the tip: abdo- 
men covered with black hairs and spines, and towards the tip with bright 
orange hairs : legs ferruginous ; thighs black': wings gray, blackish at the base; 
prebrachial vein forming a hardly acute angle at its flexure, and a very 
obtuse angle nearer its tip; lower cross-vein straight except at the upper 
end: alule white. Length of the body 7 lines; of the wings 16 lines. 
. 
East Indies. 
TacHINA NiTIDA, Mas. 
Nigra, cinerascens ; caput antice argenteum ; abdomen rufum, nigro vit- 
tatum ; tibia rufe ; ale cinerea, basi albide. 
Black: head gray above, thickly clothed with whitish hairs behind 
and beneath ; front region beset with a few stout bristles; frontalia broad, 
pitchy, very slightly concave ; interfrontalia indistinct ; face silvery white ; 
facialia with a row of bristles which do not extend above the epistoma ; 
