ORTHOPTERA OF NOVA SCOTI A .— PI ERS. 309 



broad, curved and blunt; in the Conocephalinae, which are 

 mostly terrestrial, the eggs are deposited by a piercer-like 

 ovipositor between the stems and root-leaves of grass or in 

 the pith of twigs, etc.; while in the terrestrial Slenopelmatince 

 they are doubtless placed in the ground. The eggs usually, 

 and in Nova Scotia doubtless always, remain in the place 

 of oviposition over winter and hatch the next season, the 

 young at first being wingless and arriving at maturity after 

 the usual five months. 



Key to Nova Scotian Subfamilies of TettigoniidjE. 

 a. Wing-covers and wings present. 



b. Prosternum (under surface of thorax) without spines; vertex of head 

 rounded or deflected; wing-covers rather broad, leaf -shaped, and of 

 a bright green colour, always shorter than the wings. (Mostly 



found on shrubs.) Phaneropterin.e, p. 309. 



bb. Prosternum with spines (very short and weak in our genus Xiphidium, 



but longer and more slender in genus Orchelimum which may occur 



here); wing-covers narrow, expanded little if any in middle, often 



shorter than wings; vertex terminating in a rounded tubercle in 



our species, (and in a long cone in extralimital ones) ; pronotum 



without or wdth only one transverse sulcus; ovipositor slender and 



nearly straight in our genus Xiphidium, (but stout and upcurved 



in Orchelimum). (Mostly terrestrial.) . .Conocephalinje, p. 323. 



aa. Wing covers and wings wholly absent; pronotum short, not covering 



whole top of thorax; prosternal spines absent; ovipositor nearly straight. 



(Occurring under stones, etc.) Stbnopelmatin^, p. 325. 



Subfamily Pbaneropteririae (Katydids, in part). 

 Vertex of head rounded, without cone or spine; pro- 

 sternum without spines, wing-covers and uoings present, the 

 former rather broad, of a bright green and closely resembling 

 a leaf in form and colour, the wings large and extending 

 beyond the covers. The species live chiefly on bushes and 

 small trees, with the foliage of which they remarkably har- 

 monize; they are solitary in habit and .slow in movement, 

 and while some kinds are quite numerous yet they so complete- 

 ly blend with their surroundings that they are very 

 rarely seen except by the naturalist. They differ in manner 

 of oviposition from other Tettigoniidce. The eggs instead 

 of being deposited in the earth or in twigs, are usually glued 

 in double rows to the outer surface of slender twigs, or are 



