6 University of Michigan 



Holotypc, male, Hensler's Woods, near Hanover, Indiana, 

 June 14, 1921 (Alexander). 



Allotopotype, female (Rogers). 



Paratopotypes, 5 males (Alexander and Rogers) ; paratype, 

 I male, at mouth of Wyandotte Cave, Crav^ford County, June 

 19, 1921 (Alexander). 



Further studies may show this race to represent a distinct 

 but closely allied species. 



Oropeza rogersi, sp.n. 



Size small (length of male under 8.5 mm.) ; praescutal 

 stripes reddish brown, the median stripe split by a darker 

 brown line; pleura yellow; legs brown; abdominal segments 

 yellowish brown, the subterminal segments darkened, the pos- 

 terior margins of the tergites narrowly dark brown. 



Male. — Length, 7.5 to 8.3 mm. ; wing, 8.5 to 9 mm. 



Female. — Length, 10 mm. ; wing, 9 mm. 



Frontal prolongation of head testaceous, darker above ; palpi 

 brown. Antennal scape and first flagellar segment yellowish 

 testaceous ; remainder of flagellum brown. Front pale, the 

 vertex brown. 



Mesonotal praescutum obscure yellow with three reddish 

 brown stripes, the median stripe more or less distinctly split 

 by a capillary dark brown line ; scutal lobes brown ; scutellum 

 and postnotum brownish testaceous. Pleura yellow, unmarked. 

 Halteres brown. Legs with the coxae yellow ; trochanters 

 testaceous ; remainder of the legs brown, the tarsi not bright- 

 ened. Wings with a brown tinge, the stigma darker brown ; 

 a conspicuous obliterative area before the stigma, extending 

 into cell ist M2; veins brown. Venation : Rs longer than the 

 petiole of cell Mi. 



