303 



under side slightly ferruginous : thighs witli a huary tinge: irings tvilh a 

 rery slight gray tinge ; vcius black, tawny at the base; praebrachial vein 

 forming a very obtuse angle at its flexuro, IVom whence it is straight with 

 the exception of a slight inward inclination near the tip ; lower cross-vein 

 with the two curves which are slight : alulae white : halteres yellow. 

 Length of the body 3^ lines ; of the wings 7 lines. 



Brazil. 



Tachina cincta, Feni. 



Nigra ; caput argeuteum ; thorax albidus, nigra qitadrivittatus ; abdo- 

 minis segmenta albo fasciata ; alee cinerece, ad costam suhfusca. 



Black : head with a silvery white covering ; frontalia deep black, 

 linear; facialia without bristles except at the base ; epistoma not promi- 

 nent : eyes bare : -palpi taivny : feelers black ; third joint linear, tinged 

 with white, rounded at the tip, reaching the epistoma, about four times the 

 length of the second ; sixth pubescent, very slender, tawny towards the 

 base, very much longer than the third : chest tvith a whitish covering which 

 is interrupted by four black stripes : abdomen long-obconical, not longer 

 than the chest, with a while hand on the fore border of each segment : icings 

 gray, brownish along the fore border ; veins black, tawny at the base ; prae- 

 brachial vein forming a very obtuse angle at its flexure, very slightly bent 

 inward near the tip, which is very near that of the cubital vein and ends at 

 the tip of the wing ; lower cross-vein straight : alulae white : halteres 

 tawny. Length of the body 2^ lines ; of the wings 5 lines. 



Brazil. 



Tachina nigrifera. 



Nigra ; caput argenteum ; thorax canus, nigro quadrimttatus ; abdomen 

 cano-micans ; alec cinerea, ad venas tubfusca. 



Black: head with a silvery white covering ; frontalia deep black, 

 slightly widening towards the feelers ; facialia beset with bristles along 

 the whole length : eyes hairy : palpi black, with tawny tips : feelers black ; 

 third joint linear, rounded at the tip, about four times the length of the 

 second, reaching the epistoma ; sixth very slender, minutely pubescent, 



