450 MODERN CLASSIFJCATION OF INSECTS. 



very short, each of the latter having on each side a broad and flat- 

 tened lobe, in addition to which in the posterior pair the basal joint is 

 dilated on each side into a triangular plate. According to M. Wester- 

 nuinn, this curious insect burrows into the banks of rivers, forming 

 cells three feet deep^ in which it remains during the day, flying only 

 by night {Silb. Rev. Ent. No. 3.). Fichtel, also, informed Donovan 

 that it resided under-ground like Acheta campestris ; on this account, 

 as well as from the general structure of the body, I retain this insect 

 in this family, although M. Brulle, chiefly from the 4-jointed tarsi, 

 has removed it to the Gryllidse o^ Leach ; from which, as well as from 

 the majority of the Achetidae, it further differs in having the anterior 

 tibia; not furnished with an oval talc-like plate near the base. 



A very curious insect has recently been brought from Melville 

 Island, nearly allied to the mole cricket in the structure of its fore- 

 legs, but which is long and perfectly cylindrical ; the legs, which are 

 very short and broad, being lodged in cavities at the sides of the 

 body. It is thus admirably adapted for its mode of life, as it burrows 

 into wood. It is figured, with numerous details, in Griffith's Animal 

 Kingdom, Ins. pi. 131., and described by G. R. Gray in the Mag. Nat. 

 Hist. N. S. vol. i. p. 142., under the name of Cylindrodes Campbellii. 



I possess several very curious minute species belonging to this family, 

 which singularly represent coleopterous insects. Of these a Brazilian 

 species has all the appearance, and even colours of a Cicindela, whilst 

 a small Mauritian species has the wing-covers thick and glossy, oval, 

 convex, and meeting with a straight suture, exactly like elytra. 



The second family of the saltatorial Orthoptera, Gryllidje* Leach, 

 (Locustariffi Latreille,) corresponding with the Linnaean section 



* BiBLioG. Refer, to the GrtludjE. 



ServiUe, in Ann. Sc. Nat. t. xxii. 



Audoiiin and Bridle. Hist. Nat. Ins. torn. ix. 



Lichtenstein, in Trans. Linn. Soc. Lond. t. iv. (On the eye-like spot of the wings of 



the males. ) 

 Thunherg. (Piliger), Ins. Hemelytr. 3 Genera Illustr. 1822. 



Guerin. Voyage Duperrey. — Ditto. Voyage de Coquille. — Ditto. Voy. Belanger. 

 Boisduval. Voyage de 1' Astrolabe. 

 Donovan. Naturalists' Repository. Insects of India, and Insects of China. 



