S. A. Ro/nver — Three JYeio Fossil Insects. 533 



Art. L. — Three New Fossil Insects from Florissant, Colo- 

 rado;* by S. A. Rohwee, Boulder, Col. 



Kapliidia mortua n. sp. 



Sex doubtful : length of the anterior wing, 10 mm ; width of 

 the anterior wing, 3 mm ; length of the meso- and metathorax and 

 abdomen about 8 mm . Color brown, the thorax darker, legs 

 except one tibia, which is pale, wanting ; the head and pro- 

 thorax are wanting. The venation is pale brown. Costal area 

 large, with six cross-veins. Subcosta straight, joining the costa 

 at about the length of the stigma from the stigma. The area 

 between the subcosta and the radius crossed by at least one 

 distinct cross-vein ; this cross-vein is not interstitial with any of 

 the cross-veins of the costal area, and would form an obtuse 

 angle with them. Stigma at the base perpendicular, about 

 equal in width throughout, crossed by an oblique vein ; the vein 

 at the apex is curved basally so that the end of the stigma is 

 concave. The first cell below the stigma extends beyond the 

 cross-vein of the stigma, but does not extend beyond the apex of 

 the stigma. The cell below this is as in Raphidia oblita. The 

 terminal veinlets form six Y-shaped cells. The hind wings are 

 about the same length as the fore wings. Besides the usual differ- 

 ences the stigma is broader where the cross-vein joins it, and 

 there are only three Y-shaped marginal cells. The following 

 measurements of the fore-wings are in micromillimeters : 



Distance of the cross-vein from the apex of the stigma on 



the costa __ 935 



Distance of the cross-vein from the base of the stigma on 



the costa 850 



Distance of the cross-vein from the apex of the stigma on 



the radius 765 



Distance of the cross-vein from the base of the stigma on 



the radius _ . . 425 



Distance of the apex of the stigma from the apex of the 



cell below it 306 



Distance from the base of the stigma to the subcosta 850 



Length of the cross-vein of the cell between the subcosta 



and the radius 2T7 



The venation of this species is very different from that of 

 Raphidia notata (fig. 2, PI. 5, Lief. I, Fossilen Insekten), 

 which has the subcosta joining the costa at the base of the 

 stigma. 



If compared with the venation of Raphidia oblita as figured 

 by J. F. McClendon in the Ent. News, xvii, April, 1906, p. 117, 



* Thanks are due to Prof. T. D. A. Cockerell for the pleasure of studying 

 these interesting fossils, and for going over my manuscript. 



