450 INSECTA SAUNDERSIANA. 
ADDENDA. 
Fam. TABANIDA, Leach. 
Genus TABANUS, Linn. 
TaBANUS INTEREUNS, Mas. 
Fulvus ; caput subtus flavo-album ; palpi flavescentes ; antenne apice 
picee ; thorax subferrugineus, via vittatus ; pectus albidum ; ale 
cinerea, venis transversis fusco marginatis. 
Tawny. Head yellowish white beneath. Eyes darker and with 
very small facets in front. Proboscis slender. Palpi yellowish. An- 
tenne piceous towards the tips; third joint armed with a long curved 
horn. Thorax somewhat ferruginous, hardly striped. Pectus whitish. 
Abdomen not longer than the thorax. Femora with white hairs. Wings 
gray ; stigma brown; transverse veins clouded with brown; veins black, 
ferruginous in front and towards the base; fore fork of the cubital vein 
simple, forming near the base an obtuse angle. Length of the body 
5 lines ; of the wings 11 lines. 
Rio Grande. 
