502 FAMILY VII. TETTIGOXIin.lC. THE KATYDIDS. 



Subfamily III. COPIPHORIN^E. 



THE CONE-HEADED GRASSHOPPERS. 



"Happy insect! what can be 



In happiness compared to thee? 



Fed with nourishment divine, 



The dewy morning's gentle wine, 



Nature waits upon thee still. 



And thy verdant cup does fill; 



'Tis filled wherever thou dost tread, 



Nature's self thy Ganymede." Cowley. 



Species of medium or large size, having the vertex projected 

 forward in the form of a cone, sometimes blunt, more often pro- 

 longed and pointed, this usually bearing on its lower surface a 

 small basal tooth; face long, very oblique; eyes small; pronotum 

 with not more than one transverse sulcus ; prosternum with two 

 slender spines; tegrnina seldom expanded at middle, both they 

 and the wings fully developed (except in Belocephalus) ; shrilling 

 organ of male well developed, its cross-vein prominent; hearing 

 organs present near base of front tibiae; front coxae with a spine 

 on outer side; fore tibiae without apical spines; hind femora slen- 

 der, much thickened at base ; hind tibiae armed beneath with two 

 rows of short spines and above with three pairs of apical spurs; 

 tarsi depressed, their first two joints sulcate lengthwise on the 

 outer side. 



Karney (1912) recognized 43 genera as belonging to this sub- 

 family, only four of which occur with us. The principal literature 

 dealing especially with the American species is as follows: Red- 

 tenbacher, 1891 ; Blatchley, 1893, 1903 ; Saussure & Pictet, 1897- 

 1899; Karney, 1907, 1912; Davis, 1912a, 19U, 1915; Relm & He- 

 bard, 1915, 191G. 



KEY TO EASTERN GENERA OF COPIPHORIN.E. 



a. Tegmina lobiform, covering less than half the abdomen; wings want- 

 ing or very rudimentary. I. BELOCEPHALUS. 

 aa. Tegmina and wings well developed. 



I. Fastigium triquetrous or three-sided, flat, very rugose above and 



ending in a short, strongly decurved spine. II. PYRGOCORYPIIA. 



l>b. Fastigium not triquetrous, usually conical, convex and nearly 



smooth above, the tip not ending in a decurved spine. 



o. Fastigium with a tooth beneath, its lower face on a slightly 



higher plane and well separated from the median facial 



ridge; tegmina much surpassing hind femora, their tips 



broadly rounded. III. NEOCONOCEPHALUS. 



ce. Fastigium without a tooth beneath, its lower face on the same 



plane and scarcely separated from the median facial ridge; 



tegmina usually surpassed by hind femora, their tips then 



acute or narrowly rounded. IV. HOMOROCORYPHTJS. 



