LOCUSTID;^:. PODISMA. GOMPHOCERUS. 29 



the apex:, nervures reddish; legs reddish-brown, slightly varied with 

 fuscous. 



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

 in July, and likewise in Yorkshire. 



Genus VIII.—PODISMA, Latreille. 



Antennae filiform, consisting of numerous, cylindric, slightly distinct articu- 

 lations ; head obtuse ; eyes moderate ; ocelli three ; thorax carinated, the 

 hinder margin rounded, the sides considerably deflexed ; elytra very short, 

 or almost wanting; wings also small, and inadequate for flight ; abdomen 

 solid, acuminated behind; legs moderate; posterior much longer than the 

 body, theiv femora robust, and formed for leaping; feWce long, spinous; 

 tarsi with a minute fleshy cushion between the claws. 



This genus differs chiefly from Locusta by having the elytra and 

 wings so extremely short as to be totally useless for assisting the 

 animal in flight ; the form of the thorax is also slightly different, the 

 lateral carinae being very faint ; the insects also are more robust in 

 proportion than the Locustae, and the antennae are more attenuated, 

 and the body is glabrous, &c. 



Sp. 1. pedestris. Corpore livido incarnato, ventre Jlavicante, femoribus posticis 

 subtus sanguineis, iibiis caerulescentibvs annulo albido. (Long. corp. 10 — 

 12 lin.) 



Gry. pedestris. Linnc ?— Lo. pedestus. Steph. Catal. 302. No. 3336. 



Of a livid flesh-colour, changing to a dirty hue after death ; head with a small 

 black streak behind the eyes; thorax slightly narrowed in front, with a 

 distinct dorsal carina and two obsolete lateral ones, accompanied by a black 

 line ; the back of the thorax is inclined to brown and the sides to testaceous ; 

 abdomen somewhat brownish, with the edges of the segments in the male, 

 and the under portion in both sexes yellow ; legs testaceous-brown, with 

 the hinder femora red beneath, and their tibiae bluish, with a pale ring and 

 pale spines, the apex of the latter brownish. 



Scarce, but found occasionally at the end of July within the me- 

 tropolitan district. 



Genus IX. GOMPHOCERUS, Leach. 



Antennae rather long, slender at the base, consisting of numerous indistinct 

 articulations, the apex more or less dilated, and, in the typical species, 

 forming a spoon-shaped cavity; head rather attenuated, and with a shallow 

 groove in front ; eyes ovate, rather large ; ocelli three ; thorax elongate. 



