ORTHOPTERA. 



203 



Fig. 284. — aScHpofla pellucida, California 

 locust. 



confined to mountainous regions, where they frequent bare, rocky slopes. The 

 former has the wings smoky-black, while in the latter they are yellowish. Both of 

 these insects are very noisy — their clattering being much louder than that produced 

 by the Carolina locust. (Edipoda (Camnula) pellucida, which in California is the 

 injurious species, has the hind-wings pellucid yellow. Its habits are similar to those 

 of Caloptenus spretus. It has been taken at 

 various points throughout the United States, 

 but is chiefly confined to mountainous districts, 

 where it frequents meadows and wet places. 

 (Edipoda {Pachytylus) migratorius, the most 

 destructive of Oriental species, has been so well 

 described in the past that we need only -refer to 

 it here. 



The locusts belonging to the genus Trago- 

 cephala, of which there are several representatives 

 in this country, are very variable in color. They 

 hibernate as larvfe and pupae, and are found full- 

 grown quite early in spring. Tragocephala vir- 

 idifasciata, or the Green-striped Locust, which 

 is green and brown, is found throughout the eastern portion, while Tragocephala 

 pacifica is confined to the Pacific slope of North America. 



There is an extensive group of this 

 family in which the vertex of the head 

 is greatly produced into a cone-like pro- 

 jection similar to that of the Conoce- 

 phalids among the Locustidse and Platy- 

 blemmus in Gryllidse. These are chiefly 

 confined to the warmer countries of the 

 globe, where many of them are quite 

 large. They have broad, flat antennae, pointed at the end, and with their greatly 

 lengthened heads are peculiar-looking insects. Tmxalis brempennis is a small, 

 greenish species found in Florida. It measures about one and three-fourths inches 

 in length. Truxalis nasuta, which is a large species, is found throughout southern 

 Europe, in Asia, Africa, and Australia. Mesops chlorizans, which is also green, is 

 found in the Southern States. It has a very hard, smooth, and cylindrical body, the 

 elytra are long and narrow, and the legs short. The female of this species is known 

 to deposit her eggs in rotten logs and stumps. Chrysochraon viridis, a greenish 

 species, in which the wings are also abbreviated, inhabits the eastern half of North 

 America from the Qreat Lakes southward. The size of the female is at least twice 

 that of the male. 



The number of species of Acrididae inhabiting the United States is about 275, while 

 in Europe not more than about 180 are known. 



C. V. Riley. 



Fig. 285. 



-Tragocephala vlridi/asciata, green-striped locust; 

 a, larva; 6, adult. 



