176 LIST OF DIPTERA. 



Tabanus priscus, n s., fern. Canus, capite fulvo subtus alio, tho- 

 race fusco quadrivittato, lateribus ferrugineis, abdomine fusco, 

 fulvo fasciato et trivittato, pedibus cinereis, tibiis fulvis, tarsis 

 piceis, alls subcinereis. 



Head pale tawny above, with a narrow shining brown interval 

 between the eyes, white and thickly clothed with white hairs beneath ; 

 palpi white, beset with short black hairs ; lancets ferruginous ; sucker 

 dark tawny ; first and second joints of the feelers tawny, beset with 

 short black hairs : chest hoary, with four broad brown stripes, ferru- 

 ginous on each side : breast hoary, clothed with white hairs : abdo- 

 men brown, with three very pale tawny stripes ; the side stripes are 

 interrupted and less distinct than the middle stripe ; sides and hind 

 borders of the segments tawny : legs gray, clothed with short tawny 

 hairs ; shanks tawny ; feet and tips of shanks piceous : wings 

 slightly gray, nearly colourless on the disks of some areolets ; veins 

 piceous, tawny towards the base ; brands brown, very narrow ; poi- 

 sers tawny, with bright pale yellow knobs. Length of the body 8 

 lines ; of the wings 16 lines. 

 a. ? 



Tabanus albilinea, n. s., fern. Fuscus, capite pectore thoracisque 

 vittis tribus fulvis, abdomine ferrugineo albo univittato fuscoque 

 bivittato, antennis pedibus que fulvis, alis fulvo subcinereis. 

 Head tawny, with a hoary bloom above, white and clothed with 

 white hairs beneath : mouth black : feelers and palpi tawny : eyes 

 brassy : chest brown with a hoary bloom, and having three indistinct 

 tawny stripes ; sides and breast tawny, with a hoary bloom, and 

 thinly clothed with white hairs : abdomen ferruginous, tawny with 

 a hoary bloom on eaeh side and beneath, and having on the back a 

 brown stripe inlaid with white : legs tawny with a hoary bloom ; 

 feet and tips of shanks ferruginous ; fore feet piceous : wings slightly 

 gray, tawny at the base and on the fore borders and along the bor- 

 ders of the veins ; wing-ribs, veins and poisers tawny. Length of 

 the body 8J lines ; of the wings 15^ lines. 

 a. ? 



Tabanus apicalis, n. s., mas. Fuscus, capite pectore scutello thora- 

 cisque vittis quinque canis abdomine albo utrinque trimaculato, 

 apice nigro, segmentorum marginibus posticis albidis, antennis 

 tarsisque nigris femoribus canis, tibiis fulvis , alis fusco -cinereis. 

 Head hoary : feelers and mouth black ; palpi yellow : eyes 

 brassy : chest brown, with a hoary bloom, and having five hoary 

 stripes ; scutcheon also hoary : breast hoary, and clothed with 

 white hairs : abdomen reddish brown, black at the tip ; hind bor- 

 ders of segments whitish ; third, fourth, and fifth segments with a 





