304 TERTIARY INSECTS OP NORTH AMERICA. 



gin around the entire wing, broader on the costal than the inner margin, 

 and, second, of a series of spots connected with the margin: a small quad- 

 rangular spot longer than broad on the inner margin next the tip of the 

 scutellar margin ; opposite it a corniform spot, its broad base seated on the 

 outer margin, its curved apex directed baseward along the middle line ; 

 across the middle of the wing and ba;ely reaching either margin, with a 

 slight obliquity from within outward and apexward a deeply incised sub- 

 reniform spot, the outer half the larger ; and midway between this and the 

 apex a small elongate spot seated by its broad side upon the outer margin. 



Partially overlain by this wing, but in any case out of normal relation 

 to it, is a broad oval abdomen, on the opposite side of which is a very stout 

 rounded femur, and attached to it a strong, curving, apically enlarged tibia. 



Length of fragment of the tegmina, 6.. 5°"° ; probable complete length 

 of same, 7""" ; breadth, 2°"^. 



Green River, Wyoming. One specimen, No. 127, Dr. A. S. Packard. 



4. Tettigonia obtecta. 



PI. 5, Figs. 58, 59. 



Tetligonia ohteeta Scudd., Bull. U. S. Geol. Geogr. Snrv. Terr., Ill, 761 (1877). 



A single specimen, with the merest fragments of wings and no legs, 

 but otherwise pretty perfect, belongs, with little doubt, to this family, 

 although its generic affinities are decidedly uncertain. The head is not 

 •quite so broad as the body, bluntly angulated in front (at an angle of about 

 one hundred and thirty degrees) ; the eyes are rather small, the beak stout 

 and about as long as the head. The abdomen is moderately stout but long, 

 tapering to a blunt tip ; the segments, eight in number, growing longer 

 apically, the seventh being twice as long as the second. 



Length of body, 7.6""°; breadth of same, 2"™; length of rostrum, 

 O.G.o"™ ; diameter of eyes, 0.28"°'. 



Chagrin Valley, White River, Colorado. One specimen, W. Denton. 



BYTHOSCOPUS Germar. 



The Miocene beds of Radoboj, Croatia, and the Oligocene strata of 

 Aix in Provence, as well as the amber deposits of the same age in Prussia, 

 have each furnished a species of Bythoscopus, to which we can add one 

 from the presumably Oligocene shales of White River, Colorado. 



