192 The Ohio Journal of Science [Vol. XX, No. 6, 



short stump, first posterior cell wide open, no distinct infuscation on the 

 cross veins and furcation of the third vein. Femora nearly black except 

 at extreme apexes which are pale, middle and hind tibiae reddish, front 

 tibia pale on basal part infuscated on apical half, all the tarsi infuscated. 



Holotype and one paratype from Montevidio, Uruguay. 

 Holotype female in the U. S. National Museum, paratype in 

 my collection. 



Tabanus lautus n. sp. 



Length 13 millimeters. Eyes densely hairy. Thorax dark, obscurely 

 striped and rather densely light pollinose. Abdominal dorsum red with 

 a blackish irregular stripe on the middle line. Venter similar but the 

 blackish is more diffuse and quite evident along the lateral margins of 

 the segments. Front wide, sides clearly parallel, frontal callosity 

 small, reddish rounded, convex, located at the lower angle of the eyes 

 and without a linear extension above. Antenna clear black, first seg- 

 ment nearly cylindrical, third segment wide at the base, distinctly 

 angulate on the dorsal side, annulate portion shorter than the basal 

 portion. Wings faintly reddish hyaline with margins of the cross veins 

 and the furcation of the third vein distinctly infuscated. Anterior 

 branch of the third vein with a very short stump on one side but none on 

 the other. First posterior cell wide open, front femur nearly black, 

 others slightly infuscated, front tibia reddish basally, infuscated on the 

 apical half, other tibiae red, all of the tarsi infuscated, the front ones 

 quite dark. 



Holotype female from Metucana, Peru, Summer of 1913, 

 altitude 7300 feet, collected by C. T. Brues. In my collection. 



Tabanus punensis n. sp. 



Total length 13 millimeters. Eyes densely hairy. Front wide, sides 

 parallel, frontal callosity as wide as the front, transverse, distinctly wider 

 than high, no line above, a partially denuded spot at the vertex, antenna 

 mostly black, first segment partly reddish with long and prominent 

 black hairs, third segment small prominent above but not with a dis- 

 tinct angle, annulate portion about equal to the basal portion. Thorax 

 dark faintly gray striped, wings hyaline veins dark brown, anterior 

 branch of the third vein without a stump, first posterior cell wide open. 

 All the femora black, front tibia with the basal third red remainder 

 infuscated, middle and hind tibia red with extreme apexes infuscated, all 

 the tarsi slightly infuscated. Dorsally abdomen black with each of the 

 segments narrowly margined posteriorly with gray which is expanded 

 at the middle into a well marked triangle; ventrally mostly red with 

 base and apex and extending out along the midventral line diffuse 

 brownish. 



Holotype female from Puno, Peru, November 2, 1898. In 



my collection. 



Ohio State University, Columbus, Ohio. 



