SOME EOCENE INSECTS OF THE FAMILY FULGORIDAE 



By T. D. A. Cockerell and Grace Sandhouse, 



Of the University of Colorado, Boulder. 



The remarkable abundance and variety of the Homopterous family 

 Fulgoridae in the Rocky Mountain Eocene has already been com- 

 mented upon. Many of the species were broad-winged insects resem- 

 bling moths, such as exist to-day in the oriental region. To the 

 already long list we add three more, one a new generic type. We 

 also find an additional example of Detyopsis paclcardi Cockerell from 

 Roan Mountain, Colorado (U. S. G. S., 180), which is here figured as 

 plate 98, fig. 1. 



HAMMAPTERYX TRIPUNCTATA, new species. 



Plate 98, fig. 3. 



Tegmen 14.3 mm. long as preserved, the total length probably 

 about 15.5 mm.; greatest width about 7.3 mm.; general appearance, 

 with broad, gently rounded outer margin, as in the other species. 

 The tegmen is pallid, suffused with fuscous on the upper third (the 

 veins here appearing light on a dusky ground), and there are three 

 conspicuous dark fuscous (probably black in life) spots. The outer- 

 most and largest of these is irregularly subcrescentic, somewhat over 

 1 mm. long, placed 2 mm. below the costal margin and about 4 mm. 

 from apex of tegmen. The innermost spot is small and subtriangular, 

 placed 11.6 mm. from apex and 2.3 mm. from costa. The third spot, 

 which is a broad vertical bar about 1.2 mm. long, is 4 mm. from 

 costa and 9 mm. from apex. The costal area in middle is about 

 1.2 mm. wide, and its oblique cross veins are about 7 in 2 mm. 



U. S. G. S. 217 and (reverse) 211. Roan Mountain, Colorado, in 

 rocks of Green River age. From the Scudder collection. 



Holotype.— Oat. No. 67717, U.S.N.M. 



This is larger than H. ceryniiformis Cockerell and H. reticulata 

 Scudder, but somewhat smaller than H. lapidoides Cockerell. From 

 all of these it is readily distinguished by the form and arrangement 

 of the spots. The general appearance suggests the living Hilavrita 

 trimaculata Distant, from Ceylon, but that is much smaller and has 

 the spots differently placed. 



Proceedings U. S. National Museum, Vol. 59— No. 2380. 



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