304 INSECTA SAUNDERSIANA. 
stout at the base, about twice the length of the third: chest with a hoary 
covering which is interrupted by four blach stripes : abdomen obconical, not 
lunger than the chest, with hoary reflections : wings gray, brownish beneath 
the fore border and along the veins ; vein black ; prebrachial vein form- 
ing a very obtuse angle at its flexure, almost straight from thence to 
the tip; lower cross-vein slightly bent inward near the base: alule 
white, with pale yellow borders: halteres pitchy. Length of the body 
3% lines ; of the wings 74 lines. 
Brazil. 
TacHINA aTRATULA, Fem. 
Nigra; caput argenteum; abdomen subargentatum ; antenne niyre 5 
pedes picei ; ale subcineree, basi flavo-fusee. 
Black, clothed with black hairs and bristles: head with a silvery white 
covering, ferruginous in front, clothed beneath with gray hairs; frontalia 
deep black, very slightly widening from the eyelets to the feelers: eyes 
hairy; facets in front a little larger than those elsewhere: mouth black, 
with a ferruginous tip; palpi ferruginous, black towards the base; feelers 
black; third joint linear, about four times the length of the second, almost 
reaching the epistoma; sixth pubescent for half the length from the base: 
chest: striped? abdomen with silvery reflections on the fore borders of the 
segments : legs pitchy : wings slightly gray, yellowish brown towards the 
base; veins black, tawny at the base; prebrachial vein forming a very 
obtuse angle at its flexure, straight from thence to its tip ; lower cross-vein 
with two very slight curves, the lower inward, the upper outward: alule 
dingy white with pale yellow borders: halteres ferruginous. Length of 
the body 34 lines; of the wings 7 lines. 
Brazil. 
TACHINA RUFICORNIS, Fem. 
Cyaneo-viridis ; caput argenteum; antenne rufe, articulo 30 supra 
piceo ; abdomen purpureo varium ; pedes nigri ; ale subcinerea. 
Bright bluish-green: head with a silvery white covering, testaceous in 
front, clothed behind and beneath with white hairs; frontalia pitehy, 
slightly widening ‘from the eyelets to the feelers ; antennaria tawny ; sides 
