160 LIST OF DIPTERA. 



tawny, piceous at the tips ; poisers pale tawny. Length of the body 

 8 lines ; of the wings 14 lines. 



a. South America. 



Tabanus confinis, n. s., mas. Fuscus, capite pectoreque albis, tho- 

 race albo quinquevittato, abdomine fulvo fiavo univittato apice 

 piceo, pedibus fulvis, tarsis propedibusque fuscis, alis subcinereis, 

 marginibus anticis fuscis. 



Head white, clothed beneath with white hairs : eyes tawny with 

 a coppery tinge, and having a broad bronze band above, and a nar- 

 row line of the latter colour with smaller facets beneath : palpi yel- 

 low ; sucker piceous : feelers tawny, pale yellow at the base, black at 

 the tips : chest pale brown, clothed with hairs of the same colour, 

 and adorned with five slender white stripes : breast white, clothed 

 with white hairs : abdomen tawny, piceous towards the tip, and hav- 

 ing a broad yellow stripe along its whole length, this stripe is nar- 

 rower towards the tip : legs tawny ; feet and fore legs brown : wings 

 slightly gray, brown along the fore border, and having a darker 

 brand ; veins piceous ; poisers tawny with yellow knobs. Length 

 of the body 5 lines ; of the wings 10 lines, 

 a. South America. 



Tabanus terminus, n. s., mas. Flavo-fuscus, capite pectoreque flavo- 

 albis, abdomine fulvo vittd fasciisque pallidiori bus, pedibus ful- 

 vis, tarsis anticis piceis, alis subfuscis. 



Head yellowish white, clothed beneath with white hairs : eyes 

 tawny with a coppery tinge, bronze and with smaller facets beneath : 

 palpi yellow : sucker piceous : feelers tawny : chest pale yellowish 

 brown, clothed with brown hairs : breast yellowish white, clothed 

 with hairs of the same colour : abdomen tawny, with a broad and 

 somewhat paler stripe along the back ; hind borders of the segments 

 tawny : legs tawny ; feet darker ; fore feet and tips of fore shanks 

 piceous : wings very pale brown, darker along the fore borders, and 

 having still darker brands ; veins ferruginous, piceous towards the 

 tips ; poisers tawny. Length of the body 6 lines ; of the wings 12 

 lines. 



a. Para. Presented by Gordon Graham, Esq. 



Tabanus socius, n. s., fem. Fuscus, capite flavo subtus albo, thorace 

 cinereo quinquevittato, pectore fulvo nigroque vario, abdomine 

 nigro fulvo trivittato, basi ventreque ferrugineis, pedibus nigris, 

 femoribus fulvis, tarsis piceis, alis subcinereis. 



Head yellow, white and adorned with white hairs beneath : eyes 

 piceous : mouth pale yellow ; sucker black : chest dark brown, with 



