62 SYNOPTIC TABLE OF THE STIRPES OF THE FIRST 



STIRPES. ANALOGY, METAMORPHOSIS. 



to the class of Ametabola, Madeay. . 'La-'R.va, with, a head of excessive size sAiacheAt 



the body by a long neck, ahrwptly terminate! 

 behind and entirely deprived of a caudal ap 

 pendage. (In some of the ErycincB the heai 

 of the larva has two erect spinous appendage 

 resembling those of the Thysanuriforra stirps. 

 ANOFLUKA. VveA, concealed by a folUculus, or by the covering 



of a convoluted leaf, resembling that of some c 

 the nocturnal Lepidoptera. 

 Stirps V. 



ANOPLURIFORM. 



Pediclilus. 



NiEMUS. 



Ceckops. 



Caligus. 



This genus leads to Entomoda among the 

 Epizoarice, with which we commence the circle 

 of Ametabola. (See above, p. 58.) 



In explanation of the second column of this table, which is intended to illustrate the analogies of the larva of the first tribe of Lepidoptera, I refer the readc 

 to page 286, and to pages 350 and 351 of the Horae Entomologies. Mr. Macleay here traces the Ametabola from the Chilognatha to the Vermes ; hence to tli 

 Anoplura; further to the Thysanuva and to the Chilopoda, whence he returns to the Chilognatha and completes the circle. He therefore pursues a circula 

 . course in a direction opposite to that of our table, but the succession of affinities is the same although here reversed. He commences with the Chilognatha ; fror 

 these he proceeds to the most imperfect Annnlose animals, with the following observation (p. 351). " Articulation is not very distinct in some of the Epizoari 

 of Lamarck, but sufficiently so to lead us to the Caligi of MuUer and the genus Cecrops of Dr. Leach." (This genus, although generally arranged among th 

 Crustacea, is placed by Mr. Macleay in the class of Ametabola; Lamarck had indeed ah-eady expressed a doubt as to its really being crustaceous.) " The genu 

 Cccroyjs by its general form, antenna, structure of the feet, and want of posterior appendages, prepares us for the Anoplura. These we quit for the genu 

 Smynthurus of Latreille, and by means of it enter among the Thijsanura. Some of these, such as the Lepismai of Latreille, have an elongate form, long setiforr 

 antenna;, various small appendages on each side representing false feet, together with articulated seta; terminating the posterior part of the body." " Thus, 

 continues Mr. Macleay, " we come to the larva state of the Chilopoda, or Hcolopendrce of Linnceus, fi-om which, bearing in recollection the form and structur 

 of the genus Craspedosoma of Leach, we return to the Chilognatha and complete the circle of Ametabola." 



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