286 INSECTA SAUNDERSIANA. 



Tachina socia, Mas. 



Nigra ; caput antice argenteum ; thorax cinereus, nigro quadrivittatus ; 

 scutello piceo ; antennce picece, basi ferruginecB ; alee fusca, basi 

 ferruginecB. 



Black : head thickly clothed beneath with white hairs : frontal region 

 pitchy: frontalia ferruginous ; /ace silvered; facialia with bristles along 

 the whole length except near the front: antenna pitchy ; first and second 

 joints partlg ferruginous ; third a little more than twice the length of the 

 second: chest gray, with fotcr slender black stripes : scutcheon pitchy : wings 

 brown, lurid totvards the base which is ferruginous ; praebrachial vein form- 

 ing an obtuse angle at its flexure, slightly curved from thence to its tip ; 

 lower cross-vein much waved. 



Fein.? Vertex ferruginous : frontalia pitchy, indistinct: face gilded : 

 mediana reddish : lateralia thinly clothed with short black hairs: first and 

 second joints of the feelers ferruginous ; third full four times the length of 

 the second : abdomen with a gray band on the fore border of the penulti- 

 mate segment. 



Length of the body Q\ — 7 lines ; of the wings 15 — 16 lines. 



Brazil. 



Tachina fuliginosa, Mas. 



Cinerea; thorax nigro quadrivittatus ; scutelltnn picemn ; abdomen nigrum, 

 apice cinereum ; antennee picece ; alee nigro-fuscce, basi ferruginea. 



Black: head tinged with gray ; frontalia ferruginous ; face tawny, sil- 

 vered; facialia with a row of bristles which do not extend along half the 

 length from the epistoma: /ee/crs^i<c%,- third joint less than twice the 

 length of the second : chest gray, with four slender black stripes ; scutcheon 

 pitchy : abdomen with a gray tip ; wings blackish brown, especially towards 

 the base ivhich is ferruginous ; lower cross-vein very slightly waved : alulce 

 dark brown. Length of the body 5^ lines ; of the wings 13 lines. 



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