LOCUSTID.E. LOCUSTA. 23 



Sp. 8. parallela. Thorace carinis lateralibus subrectix ; supra lateribusque 

 viridis, subtus Jlavicans, geniculis pedum, posticorum nigris, elytris paUidis, 

 unicoloratis. (Long. corp. 8 — 10 lin.) 



Gry. parallelus. Zettersted Orth. Suec. p. 85. — Steph. Nomen. 2d edit. col. 110. 



Thorax with the lateral ridges nearly straight ; head and thorax green, the 

 latter entirely of that tint; elytra in the male rather shorter than the 

 abdomen, dilated and bisinuated on the costa ; in the female about half the 

 length; in both sexes entirely green and immaculate ; abdomen greenish- 

 brown^ with the sides occasionally spotted with black, and the lower 

 surface pale; legs testaceous, with the hinder femora above greenish^ 

 beneath yellow, with black knees. 



Also found, but not commonly, within the metropolitan district. 



Sp. 9. montana. Thorace cari7iis lateralibus antice nonnihil curvatis j viridis 

 subtus Jiavida, geniculis posticis nigris ; elytris in mare abdominis longitudine, 

 in fosmina tertia parte thorace capiteque longioribus. (Long. corp. 8 — 10 lin.) 



Gry. montanus. Charpentier Horw Ent. p. 173. — Lo. montana. Steph. 

 Nomen. 2d edit. col. 110. 



Thorax with the posterior ridges very slightly curved; head rather wide, and, 

 with the thorax, green ; elytra in the male as long as the abdomen, in the 

 female abbreviated; in both greenish ; in the former sex they are rather 

 broad, and in both the wings are nearly as long as the elytra ; beneath the 

 body is yellowish ; legs pale testaceous, with the knees of the hinder pair 

 black. 



Also slightly variable, some examples having a black streak on each side of 

 the thorax, and others wanting it ; and in some females there is a faint 

 yellowish line at the base of the elytra. 



Found near Dover, but apparently not common. 



Sp. 10. tricarinata. Thorace carinis iribus atris valde elevatis rectis ; rosea, 

 elytris fuscescentibus apice vigricantibus, viargine antico strigd pallida liturdque 

 nigricante adiiat i. (Long. corp. 10 lin.) 



Lo. tricarinata. Steph. Catal. 302. iVo. 3335. 



flead broad, acute; rosy, or flesh-colour, rest of the body the same, with the 

 base and sides of the abdomen dusky; thorax with three strongly elevated 

 straight black ridges, its anterior margin also black ; elytra rather shorter 

 than the abdomen, pale fuscous, with the apex dusky ; at the base, near 

 the costa, is a long slender whitish streak, adjoining to which on the disc is 

 a broader blackish one ; legs entirely flesh-colour, immaculate. 



This very distinct insect is apparently very rare : I have one 

 specimen which I caught near London, but I forget its exact 

 locality. 



