LIST OF DIPTERA. 253 



440. Tabanus antecedens. 



FoDm. Niger ', palpi testacei ; antenna parvce, graciles, simplices, 

 vix dilatatce ; thorax cano bivittatus ; pectus canum ; abdo- 

 • men piceum, segmentorum marginibus posticis albidis , tibia 

 ferruginece; alee sub cinerece. 



Fern. ? Black. Head clothed beneath with white tomentum, 

 pale testaceous about the mouth. Palpi pale testaceous, long. 

 Proboscis long. Antennae small, slender ; third joint hardly dilated, 

 very obtusely angular above. Thorax with two hoary stripes ; sides 

 and pectus hoary. Abdomen piceous ; hind borders of the segments 

 whitish. Tibiae ferruginous. Wings grayish ; veins black ; first 

 branch of the cubital vein forming a slightly obtuse angle near its 

 base, and there rejecting a short branch; subanal vein joining the 

 anal near the border. Length of the body 5 lines ; of the wings 9 

 lines. 



a. Van Dieman's Land. From Mr. A. J. Smith's collection. 



441. Tabanus posticus. 



Glaucus ; aniennce, pedes et abdomen ferruginea, hoc apice satura- 

 tions ; alee limpidissima. 



tins ; alee limpidissima. 

 Tabanus posticus, Wied. 

 New Holland. 



442. Tabanus Sidneyensis. 



Foem. Niger ; abdomen testaceum, albo maculatum ; tibia tes- 

 tacece ; alee cinerece, wnce cubitalis ramo lo furcito. 



Tabanus Sidneyensis, Macq. Dipt. JSxot. SuppL 1, 33, 66, 

 Sidney Island. 



443. Tabanus cinerascens. 



Cinereo-ferrugineus, subtus albescens ; abdomen linea media macu- 

 Usque quatuor utrinque cinereis ; alee hyalince, basim versus 

 sublutece. 



Tabanus cinerascens, King. 



New Holland. 



