ADDENDA. 327 



Tabanus INNOTESCENS. 



Fcem. Rufus ; caput albo tomentosum et pilosum ; palpi albido 

 testacei ; antennae, ferruginea, basi testacece, apice nigrce, 

 articulo So vix cornuto ; pectus apud discum cinereum ; abdo- 

 men basi testaceum ; pedes fulvi, tarsis nigris ; alee subcinereo 

 hyalince, basi et apud costam luridce. 



Fern. Ked. Head with white hairs and tomentuin, testaceous 

 between the eyes, with the exception of a long slender shining fer- 

 ruginous callus. Eyes bronzed, with very small facets. Proboscis 

 black . Palpi whitish testaceous. Antennae ferruginous, very small, 

 testaceous at the base, black towards the tips ; third joint with 

 a very small slightly obtuse tooth. Thorax thinly covered with 

 white tomentum. Disk of the pectus gray. Abdomen testaceous 

 towards the base. Legs tawny ; tarsi black, except at the base. 

 Wings slightly grayish hyaline, lurid at the base and along the 

 costa as far as the stigma, which is brown ; veins black ; fore branch 

 of the cubital vein simple, forming an obtuse and somewhat 

 founded angle. Length of the body 8 lines; of the wings 15 

 lines. 



a. Tapayos, Brazil. From Mr. Bates' collection. 



Tabanus chrysoleucus. 



Mas. Luteus ; caput et pectus albo tomentosa et pilosa ; palpi 

 albi; antenna fulva, apice nigrce, articulo 3o cornuto, abdo- 

 men fuscum, apice nigrum, subtus testaceum, maculis dorsali- 

 bus fasciisque ventralibus albis ; pedes nigri, tibiis albis ; alee 

 limpidce, basi vitta postica fasciaque nigricantibus. 



Male. Head and pectus with white hairs and tomentum. 

 Eyes red, composed of large facets ; fore part bronzed, with very 

 small facets. Proboscis black. Palpi white. Antennas tawny, 

 with black tips ; third joint with a rather long acute tooth. Thorax 

 thickly clothed with bright luteous hairs. Abdomen brown, black 

 towards the tip, testaceous beneath ; hind borders of the segments 

 whitish beneath, and with whitish triangular spots above. Legs 

 black ; anterior tibiae white, with black tips ; hind tibiae dingy 

 whitish towards the base. Wings limpid, blackish at the base, 

 with a blackish stripe which extends between the subanal vein and 

 the anal towards the border, and with a blackish band extending 

 from the stigma nearly to the hind border ; veins black ; fore branch 



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