6-i2 Div. 3. ARTICULATA.— INSECTA. Class 3. 



THE ORDER MTRIAPODA. (P. 482— 48G.) 



The classification as well as tlie characters of this tribe of insects has advanced towards perfection with rapid 

 steps since the days of Latreille ; although Naturalists are stiU as much at variance with respect to their real 

 relations. Thus, whilst M. Braudt adopts the views of Latreille, and even M, Gervais (Hist. Nat. Ins. Apt., Ill, 

 p. 54), seems inclined to prefer regarding them as vermiform insects rather than as forming a separate class, 

 equal in value to the Insecta, Arachnida and Crustacea, Mr. Newport, talung up the views of Strauss, (Cous. 

 gcner. sur I'anat. des an. art. p. 16) and some earlier authors, considers tliem as most nearly allied to the An. 

 nclida, placing the sub-kingdom Articulata at the head of the Invertcbrata, commencing ivith the Uexapod 

 insects, followed by the Spiders, Crustacea, Myriapoda, Annelida, and the remainder of the Articulata, (Trans. 

 Linn. Soc, XIX, 271.) 



The three authors above-mentioned, Brandt, Ne^\'port, and Gervais, have especially studied these insects. 

 Newport has retained the binary division and names Chilognatha and Clillopoda of Latreille, but Gervais has 

 adopted the views of the Baron Walckenaer, and employed the name of Diplopoda for that of Chilognatha. 

 The arrangement of Mr. Newport of the class given in the Linnsean Transactions is as follows; — 

 Order I.— Chilopoda Latr ; Syngnatha Leach. 



Tribe 1. Schizotarsia ; Fam. 1. Cex-matiidse, 1 genus. 

 Tribe 2. Holotarsia ; Fam. 2. Lithobiida;, 2 genera. 



Fam. 3. Scolopendridae, 8 genera. 

 Fam. 4. OeophilidiB, 5 genera. 

 Order II.— [Diplopoda Walckenaer] ; Chilognatha Latreille, Newport. 

 Tribe 3. Pentazonia ; Fam. 5. Glomeridaa, 3 genera. 

 Tribe 4. Monozonia ; Fam. 6. Polyxenidre, 1 genus. 



Fam. 7. Polydesmidae, 6 genera. 

 Tribe 5. Bizonia ; Fam. 8. Julidse, 8 genera. 



Fam. 9. PolyzonidcC, 2 genera. 

 Fam. 10. Siphonophorida:, 1 genus. 

 The works of the authors above mentioned, must be referred to not only for descriptions of the 300 known spe- 

 cies of the order, but also for many valuable observations ou their structure, anatomy, and development from the 

 egg state, as well as a memoir by M. Waga, on the Myriapoda of tlie environs of Warsaw ; various detached 

 memoii-sby M. Lucas ; the article Myriapoda by R. Jones, in Dr. Todd's Cyclopxdia of Anatomy and Physiology. 

 Also a memoir on the genus Scutigera Lam. (Cermatia lUiger), published by R. Templeton, in the Transactions 

 of the Entomological Society of London, Vol. Ill ; and a memoir by Mikan, ou the lull of South America, 

 published in the Isis for 1834. 



In the Supplement to the 4th Volume of the Histoire Naturclle des Insectes Apteres, the Baron Walckenaer 

 has introduced a new mode of discriminating the difficult species of the genera Heteristoma and Scolopendra, by 

 the number of joints in the Antenna, varying fi-om twenty-five to eleven. 



THE ORDER THTSANURA. (P. 486— 488.) 



The researches of the Abbe Bourlet on the Thysanurse of the North of France, and of M. Nicolet on those of 

 Neufchatel in Switzerland, must be consulted. The former have been published in the Memoirs of tlie Societies 

 of Lille, (1839), and of Douai, (1843), and the Revue Zoologique, 1845 ; and the latter in the Memoires de la Societc 

 Ilelvet. des Sci. Natur, 1842, and in the Annales of the French Entomological Society for 1847. Tliese worlds, 

 (except tlie last), with various detached articles on the subject, have been employed by M. Gervais in his work on 

 tliese insects, introduced into the 3rd Volume of the Hist. Nat. des Apteres, in which the genus Podura is divided 

 into eight groups or sub-genera, several of which have received synonymical names by the difl'crent authors 

 above named. Several other genera are added in M. Nicolet's last memoir. 



The Lepisinente have received the addition of two singular genera, Nicoletea and Campodea, both having the 

 body destitute of scales, and very mucli resembling tlie larvaj of Stapliylinida;. 



The relations of this order have also been the subject of consideration ; Burmeister ranging them next to the 

 Orthoptera, whilst Gervais regards the Lepismid^e as Neuropterous insects stopped in their development. 



THE ORDER PARASITA. (P. 488.) 



Tlie fine Monograph of Mr. Denny upon the British species of Parusita, has materially increased our knowledge 

 of tliese insects ; a great number of species being for the first time described and beautifully figured in the 

 twenty-six plates witli which the work is illustrated. The species are here arranged according to Nitzscli's dis- 

 tribution, as published in Germar's Magazine, one sub-genus only being added for the reception of the species 

 found on the common Swift, and named Nitzscliia Burmeisteri. Burnieister's articles on this order in his Genera 

 lu.sectorum, must be consulted, as well as a valuable article on the structure of the mouth of the PedicuU, in tho 

 Liiiuxa Entomologica by tho same writer. 



THE ORDER SUCTORIA. (P. 489.) 

 A summary of tho species of Piilex has been given by Gervais, in the Drd Volume of tho Iliitoire Natui-t-Ue des 



