HEMIPTERA HOMOPTERA JASS1DES. 305 



BYTHOSCOPUS LAPIDESCENS. 



PI. 5, Fig. 94. 

 Bythoscupiis lapideacens Scudd., Bull. U. S. Geol. Geogr. Surv. Terr., Ill, 7G1 (1^77). 



A single specimen, broken at the edge of a stone, and so preserving 

 only the abdomen ;md part of the wings. The abdomen is long and slen- 

 der, composed of nine segments, the extremity indicating that it is a female. 

 The wing (the tegmina appear to be entirely absent) reaches the tip of the 

 abdomen, and the apical cells are from a third to nearly half as long as the 

 wing, the upper the longer ; the apex is produced but rounded. 



Probable length of body, 5.5 mm ; length of fragment, 3.5 mm ; breadth 

 of abdomen, 1. ">""". 



Chagrin Valley, White River, Colorado. One specimen, No. 44 b , W. 

 Denton. 



AGALLIA Curtis. 



To this genus, now found in both worlds, and never before found fos- 

 sil, I refer several of Florissant species with little doubt, except that most of 

 them are of too large size. 



Table of the species of .-lyallia. 



Large species (body exceeding'eight millimeters iu leugth) ; a cross-vein imiting the radial vein to the 



margin in the outer half of the wing. 

 Tegmina more than tliri'e times as long as broad. 



Apical ci-ll.i of teguiina twice as long as broad ................................... 1. .(. 7i iijj. 



A] i leal ci'lls nt' trgmina only hall' as long again as broad ........................ 'J. .1. jinn i<lu. 



Tegmiua less than thieo times as long as broad ................................... :i. A. iimtaliilin. 



Small nccics(lioily less (,lian livn milliiiiuli-r.s in length); no cross-vein uniting thu radial vi-in to tin- 

 margin ................................................................. 4. A. abstructa. 



1. A(JALLIA LKWISII. 

 I'l. 10, Fi^.s. 7, til. 



Head relatively small, narrower than the thorax by reason of the for- 

 ward narrowing of the latter, broadly rounded. The thorax is very (im-lv 

 wrinkled transversely. The tegmina arc fully three times as long as broad, 

 the costal margin broadly and pretty regularly convex but more roiindi-d 

 at the e\ I I'd 11 Mies than in the middle ; the iilnar vein forks (ami is united to 

 the radial i at the end of the proximal third of the \\ in-', and thr latter runs 

 into the costal margin a little before the tip, sending a cross-vein to the 

 margin at alioiit the middle of tlie apical halt' of the wing, opposite which a 



\oi, 



