LIST OF DIPTERA. 147 



Tabanus confusus, n. s., fern. Rufus, abdomine maculis albis 



univittato, antennis pedibusque ferrugineis, alis subfulvis. 



Much resembling T. abdominalis, but the legs are paler, 

 the horn on the third joint of the feelers is much shorter, the stripes 

 on the chest are hardly visible, the abdomen is narrower towards the 

 tip, its spots are larger, the legs are paler, and the cross-veins of the 

 wings are clouded with ferruginous colour. The description of 

 T. imitans will apply to this species, but there are well-defined tri- 

 angular spots of whitish hairs along the back of the abdomen ; the 

 hind borders of the segments are whitish, especially on the under- 

 side, which is covered with white down : there are whitish hairs on 

 each side of the abdomen, but no black hairs ; the wing-veins are 

 clouded only with tawny colour. Length of the body 10 lines ; of 

 the wings 22 lines. 



a. Georgia. From Mr. Abbot's collection. 

 I Tabanus recedens, n. s., fern. (tinereus, thorace cano quinque- 



vittato, abdomine, maculis albis univittato, antennis, pedibus, 



alisquefulvis. 



Body dark gray above, hoary beneath where the head and the 

 I sides of the breast are clothed with yellowish white hairs : mouth 

 black: palpi and feelers tawny; third joint of the latter with an 

 angle near the base : chest with five hoary stripes : a white stripe 

 on the back of the abdomen, interrupted on the fore border of each 

 segment, and widening very slightly towards the hind border: legs 

 tawny, clothed with short white hairs ; feet brownish tawn j : wings 

 dull tawny, which colour deepens at the base and still more on the 

 fore borders : cross-veins clouded with brown ; veins piceous. 

 Length of the body 10 lines ; of the wings 20 lines. 

 1 a. Florida. Presented by E. Doubleday, Esq. 



j 1 Tabanus proximus, n. s., fern. Obscure mifus, abdomine nigro, 

 antennis nigris basi rufis, pedibus nigris, femoribus apice 

 tibiisque rujis, alis fulvis. 



Darker than T. abdominalis: body dark red: mouth black: 



1 palpi reddish brown : feelers black, dark red at the base : chest 



clothed with black hairs on each side; the stripes on its disk 



| not distinct : abdomen black, covered with a hoary bloom : legs 



I black ; tips of thighs and shanks, excepting their tips, red : wings 



tawny, especially on the fore borders; veins piceous; cross-veins 



clouded with brown ; poisers tawny. Length of the body 10 lines ; 



of the wings 20 lines. 



This species is very like T. lineatus, but the cell in the disks of 

 the wing is more nearly closed on the hind border. 

 a. St. Louis, Florida. Presented by E. Doubleday, Esq. 



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