354f Lalreille's Thysanoures. 



rect knowledge of the exact season at which each species is 

 to be found is of importance to the collector, and may be in- 

 teresting also to the general naturalist* u\& xib-aJflflX ■.-) e-of. 



H The doubtful species," we are informed, " such as Papilio 

 Podalirius, &c, will be reserved for an appendix." We do 

 not know precisely what other insects are meant to be included 

 in this et caetera; but as Mr. Wood, following the steps of his 

 leader, Mr. Stephens, publishes as genuine species such ques- 

 tionable articles as Colias Chrysotheiw, Pontia Chariclea, 

 Metra, and sabellicae (he has omitted Pontia napae'ae of Ste- 

 phens), we hope and trust that he will likewise find a place 

 in the appendix for those no less interesting insects, Colias 

 Edusa alba (Papilio HeTic<? of Haworth), Melitae^ Pyroni#, 

 Argynnis Charlotte, Hesperia (Thymeh?) lavaterae, &c. In 

 short, we recommend him to record and figure all the strong 

 varieties, which the rich cabinets to which he has access may 

 furnishao <*nj to io 9dT ^ni. a9i9jm oa h V- . 



In conclusion, should we appear to Mr. Wood, during the 

 course of our remarks, to have indulged in any thing border- 

 ing on severity of criticism, we beg to assure him that nothing 

 of the kind was intended. We admire his work ; which, 

 from the specimen afforded by the first number, promises to 

 be, when completed, one of the neatest and most useful books 

 we know on the subject of British entomology. As such, we 

 recommend it to our readers, most sincerely hoping that the 

 author may meet with sufficient encouragement from the 

 public, to enable him to bring his labours to a successful 

 termination. I 1o aboq^Joq snmqyJ tdi 1o *** 



■ bnfi.9 . , . 



Latreille, Pierre Andre : De l'Organisation exteneure et 



comparee des Insectes de l'Ordre des Thysanoures. 



Sir, Considering that, in consequence of the lamented 

 decease (on February 6. 1833) of the celebrated Latreille, a 

 notice of an unpublished memoir from his hands cannot fail 

 to be interesting to your entomological readers, I send you 

 one on his papers upon the Thysanura, intended for publica- 

 tion in the next part of the Nouvelles Annates du Museum 

 d'Histoirc Naturelle, — a copy of which he was kind enough 

 to forward to me before his decease, — written during his 

 last illness, while in his retreat in the country, whither he 

 had gone to regain, if possible, strength enough to enable 

 him to complete his admirable Cours d' ' Entomologie. How 

 feelingly does the veteran, full of zeal to the end, speak of 

 his infirmities ! " Prive de collection, etant dans l'im- 

 puissance, a raison de mes infirmites, de faire des excursions 

 lointaines, je me suis vu reduit a ne pouvoir recueillir que 

 les insectes des environs de ma demeure II falloit me 



