46G M. straus-durckheim's 



Sp. 1. Isoc. loetus. Fem. Viridis, ahdomine imrpureo, 

 antennis nigro-fuscis, pedihiis flams, alis suhhyaUnis. 

 (Alarum longitudo, 1^ lin.) 

 August ; grass in fields ; near London. 



Genus XV. Spaniopus,s Walker. 

 Caput mediocre, thorace latius: oculi mediocres : antennas 13-arti- 

 culatae, extrorsum crassiores ; articulus l"^ elongatus ; 2"^ cyathi- 

 formis ; 3"'. et 4"'. minimi ; 5"'. et sequentes ad 10""". subaequales ; 

 clava triarticulata, elongata, apice acuminata, articulis 9". et 10". 

 longior : thorax elongato-ovatus : prothoracis scutellum parvum : 

 mesothoracis scutum magnum ; suturae laterales satis conspicuas ; 

 paraptera et epiraera majuscula ; scutellum convexum, ovatum : 

 metathoracis scutellum magnum : petiolus brevissimus : abdomen 

 breve, ovatum, supra depressum ; segmentum 2"". magnum ; 3""". 

 mediocre ; sequentia parva : pedes graciles ; tibiee rectte, inter- 

 medias apice incrassatae. 



Sp. 1. Span, dissimilis. Mas. Aureo-virldis, antennis Juscls, 

 pedibus stramineis, alis flavotinctis. (Alarum longitudo, 

 1 lin.) 

 August ; grass in fields ; near London. 



Art. LVIIL — Abstract of M. Slraus-DurcJchehns " Co7isi- 

 deratiojis Generates sur VAnatomie Cornparee des Animaux 

 Articides." By Edward Doubleday, Esq. 



(Continued from p. 283. j 



" Quelle admirable structure, quelle sagesse, quelle toute-puissance dans le 

 moindre objet sorti des mains du Createur !" 



Part. L — Tegumentary System. 

 Section L 

 In all the Annelida, and in the greater part of the larvae of 

 insects, the skin still preserves that flexibility which it pos- 

 sesses in the Vertehata ; consequently, the skeleton being 

 wanting, their bodies are soft and more or less cylindrical, 

 and their motions confined to crawling or swimming; but 

 Nature, wishing to introduce in the more perfect articulated 

 animals many of the functions of the Vertebrata, has, by 

 increasing the proportion of earthy substances in the skin, 

 given it nearly the consistence of bone, whilst, by means of 



^ airavios rarus, ttovs pes. 



