258 Bulletin of Laboratories of Denison Unive^^sity, [Voi. xi. 
rounded by black, but the frontal one surmounted by one 
or two black spines. Thorax brownish, legs lighter, clothed 
with short pile and numerous black spinose hairs. Apex of 
tibial and tarsal joints of hind legs piceous, no wings or rudi- 
ments of wings. 
Appendages of the male pale, wide, rather long, widest at 
apex, where superiorly there is a prominent elevation; basal 
part slightly prominent above, but below it is very strongly 
narrowed. Length 1)4 nim. Width at middle imm. 
Easily known by the absence of wings. 
Habitat, California. 
Living specimens are said to have a green color agreeing 
with the plants on which they are found. Dry specimens vary 
some in color and the markings are somewhat obscured. 
Bittacus chlorosti^ina McLachlin. 
Plate LXI, Fig. j7. 
Bittacus chlorostigma, McLachlin, Ent. Mo. Mag. 18-36; 
Ent. Nach. 19-317; Mine, Jour, Col. Hort. Soc. 13-110. 
Male and female shining, reddish; wings transparent, shin- 
ing, veins reddish, pterostigma yellow. 
Appendages of the male lighter than the abdomen, ex- 
treme apex piceous, superior edge prominent, regularly concave, 
superior distal angle rounded, apex straight, inferior distal angle 
rounded, inferior edge very slightly concave to distal third, 
then strongly convex toward base making the appendage widest 
near basal third; 2 mm. in length and imm. in width. An- 
terior wing 24-27mm; body 23-26mm. 
Habitat, southern Cal. 
This is the only North American species of the genus having 
a yellow pterostigma, and also may be easily known by its 
large size. 
Bittacus puncti^er Westwood. 
Plate LX, Ftg. /p. 
Bittacus punctiger, Westwood, Trans. Ent. Soc. of London 
4-195 ; Walker, Cat. 468; Ldagen, Neurop. N. A. 247; Hme, 
Jour. Col. Hort. Soc. 13-113. 
