HEAlIPTERA 1IOMOPTERA JASSIDES. 31 ^ 



(XELIDIA Gerniar. 



The only species of this group hitherto reported fossil is one described 

 below from British Columbia. To this we no\v add another species from 

 Wyoming. Et is an American type best developed in the tropics, bui not 

 unknown in the southern United States. 



Tulle of the species of Ccelidia. 



Tegmina loss than throe times as lon^ as lirnail 1. C. culnmhiiiiin. 



Trgmiiia IIHIIV lliau tlnvr I imrs as Imi^ as broad 2. C. wyoniinijeniiis, 



1. CCELIDIA COLUMBIANA. 

 PI. 2, Fig. 13. 



Calidia columbiana Scudd., Rep. Progr. Geol. Siirv. Can., 1-77-1-78, 185B (1878). 



A pair of tegmina, in which most of the venation can be made out, 

 with a crushed body and crumpled wings, represent a species of Cu-Iidia or 

 an allied genus, with rather broad tegmina The veins of the tegmina are 

 nearly parallel to the gently an-uate costal margin, are equidistant from one 

 another, and are united by cross-veins near the middle of the apical half of 

 the tegmina, the lower ulnar vein, which runs only a little below the mid- 

 dle of the wing, forking at this point; the upper of the apical areolet>, how- 

 ever, is consid'-rablv shorter than the others; the two ulnar veins are united 

 by a cross vein in the middle of the basal halt of the tegmina, while not far 

 from the middle of the tegmina the ulnar and radial veins are similarly 

 united. The tegmina do not taper apically, the extremity is rounded and 

 obliipiely docked, and the sutnra clavi is short. The hind wings are pro- 

 vided with an unusual number of cross veins. 



Length of tegmina, X""" ; breadth, ;;.-- ) .")" im . 



Similkameen liiver, Uritish Columbia. One specimen, No. 75, Geol. 

 Surv. Canada, Dr. G. M. hawson. 



2. CCELIDIA WYOMINOKNSIS. 

 PI. 4, Fig. 8. 



A dark species appears to be. indicated, the head and thorax being 

 black and the veins of the tegmina heavilv marked with dark fuliginous. 

 The tegmina are well rounded, about three and a quarter times as l.ni_r as 



broad, the costal margin regularly and prett\ stmngU eou\e\; the 



