238 



AN INTRODUCTION TO ENTOMOLOGY 



Subfamily PSEUDOPHYLLIN^ 

 The True Katydids 



The best -known representative of this subfamily in the United 

 States is the northern true katydid, Pterophylla camellijolia (Fig. 

 248). This insect is found throughout the United States east of 

 the Rocky Mountains; but in the North it Hves in colonies which 

 occupy quite limited areas. This is the insect whose song suggested 

 the popular name katydid. It differs from members of the preceding 

 subfamily in having the hind wings shorter than the tegmina, and in 

 having the tegmina very convex, so that it has an inflated appearance. 

 Subfamily CONOCEPHALIN^. 

 The Meadow Grasshoppers 



From the middle of the summer to the autumn there can be found 

 upon the grass in our meadows and moist pastures many light-green 

 long-horned grasshoppers of 

 various sizes; these, on ac- 

 count of the situations in 

 which they are usually found, 

 are termed the meadow- grass- 

 hoppers. Our common species 

 represent only two genera ; but 

 each of these includes many 

 species. 



Orchelimum. — This genus 

 includes the larger and stouter 



species of meadow grasshoppers; but they are of medium size com- 

 pared with other Tettigoniidae. In these the ovipositor is usually 



Fig. 249. — Orchelimum vulgare, mal; 

 (Prom Lugger.) 



Fig. 251. — CoiiocephalHs 



Fig. 250. — Orchelimum vulgare, female. 

 (From Lugger.) 

 up-curved. Our most abundant species is the common meadow 

 grasshopper, Orchelimum vulgare. This is found from the Rocky 

 Mountains to the Atlantic Coast. Figure 249 represents the male, 

 natural size; and Figure 250, the female. 



Conocephalns.— This genus comprises the smaller and slenderer- 

 species of this subfamily. In these the ovipositor is slender, and 

 straight or slightly curved (Fig. 251). Until recently this genus has 

 been generally known as Xiphidium.* 



*It is unfortunate that according to the rules of nomenclature the name 

 Conocephalus must be applied to this genus instead of to the typical genus of the 

 next subfamily, now known as Nsoconocephalus, with the result that the sub- 

 family name ConocephaUnje is applied to the meadow grasshoppers instead of to 

 the cone-headed grasshoppers. 



