LIST OF DIPTERA. 199 



188. Tabanus leucaspis. 



Nigellus ; scutellum, abdominis fasciae tibiceque basi alba ; aim 

 limp i da. 



Tabanus leucaspis, Wied. Auss. Zweifl. i. 179, 113. 



Brazil. 



189. Tabanus cinereus. 



Cinereus; thorax fusco quadrivittatus ; abdominis segmenta fusco 

 quadrimaculata ; alee, limpidissima. 



Tabanus cinereus, Wied. Dipt. Exot. i. 89, 48 ; Auss. Zweifl. i. 167, 

 85. 



South America. 



190. Tabanus trivittatus. 



Nigellus ; antenna tibiaque ferruginea ; abdomen fuscum, albo 

 trivittatum. 



Tabanus trivittatus, Fabr. Syst. And. 104, 40. Wied. Dipt. Exot. 

 i. 85, 41 ; Auss. Zweifl. i. 172, 91. 



Brazil. 



191. Tabanus plangens. 



Foem. Nigro-piceus, subtus albo tomentosas ; palpi albidi ; an- 

 tenna rufa, parva, arcuata, subdilatata, apice nigra ; abdo- 

 men albido trivittatum, lateribus subtus testaceis ; pedes nigri, 

 femoribus apice tibiisque posterioribus fulvis, tibiis anticis 

 basi albis ; aloe cinerece. 



Fern. Piceous black, whitish, and clothed with white tomentum 

 and down beneath. Head with a small black callus in front be- 

 tween the eyes. Eyes composed of extremely small facets. Palpi 

 whitish. Antennae small,red, curved, black towards the tips ; third 

 joint slightly dilated, forming a nearly right angle. Abdomen with 

 three whitish bands, the lateral pair indistinct ; sides testaceous be- 

 neath. Legs black ; tibiae and tips of the femora of the four pos- 

 terior legs tawny ; fore tibiae white towards the base. Wings gray ; 

 stigma brown ; veins black ; cubital vein forming an obtuse or 

 slightly obtuse angle near the base ; in the latter case it rejects the 



