32 MANDIBULATA. ORTHOPTERA. 



Sp. 5. calidoniensis. Thorace cruciato, rufescens, ano pallido ; abdomine supra 

 nigro, elytris griseo-fuscis immaculatis ; geniculis posticis fuscis. (Long, 

 corp. 7 — 8 lin.) 



Gen. calidoniensis. Leach MS.—Sieph. Catal. 302. No. 3341. 



Reddish; thorax immaculate, with the lateral carinae considerably angulated 

 and palish; elytra griseous-brown, immaculate, with two faint palish 

 clouds on the disc ; abdomen black above, with the apex reddish ; legs pale 

 testaceous, the hinder femora with some dusky clouds, and the knees also 

 dusky ; tibiae testaceous. 



Taken in the island of lona, and in other parts of Scotland, by 

 Dr. Leach, in July. 



Sp. 6. apricarius. Thorace tricarinato, carinis lateralibus angulatis ; viridi- 

 fuscus, thorace utrinque lined aira, elytris pallidis, in mare immaculatis, in 

 femina maculis fuscis, antennis thorace duplo longioribus, subcompressis. 

 (Long. corp. 8 — 10 lin.) 



Gryll. apricarius. Zetterstedt Orth. Suec.p. 91. — Go. apricarius. Steph. Nomen. 

 2d edit. col. 110. 



Thorax tricarinated, the lateral carinae angulated ; of a greenish-brown, with 

 a black streak on each side of the thorax ; elytra pale, immaculate in the 

 male, and spotted with brown in the female ; legs testaceous-brown, with 

 the knees concolorous ; posterior tibiae pale ; the hinder femora with an 

 oblique distinct black line; antennae rather long and somewhat compressed; 

 fuscous, with the base testaceous. 



Rare in England: inhabits the metropolitan district in the 

 autumn. 



•j-Sp. 7. sibiricus. Thorace gibboso ; griseo-nebulosus, elytris hyalinis,fe7noribus 

 posticis griseo nigroque maculatis, subtus Jlavis ; tibiis anticis in maribus 

 ovato-clavatis, crassis. (Long. corp. 8^ — 10 lin.) 



Gryll. sibiricus. Linne. — Go. sibiricus. Steph. Catal. 302. No. 3343. 



Obscure griseous-brown, slightly clouded; thorax gibbous, faintly carinated ; 

 elytra hyaline ; posterior femora spotted with griseous and black, yellow 

 beneath ; anterior tibiae in the male ovate-clavate, thickened, simple in the 

 female. 



This singular insect is in Mr. Hope's rich collection : taken on the 

 hills near Netley, 



Ge^jus X.— ACRYDIUM, Fahricius. 



Antennce filiform, short, somewhat approximating, inserted beneath the eyes, 

 consisting of about fourteen or sixteen articulations ; head acuminated in 



