DO MONOGRAPHIA ^EGERIARUM ANGLIC. 



as having " four unequal wings, the first and second pair 

 hooked together." p. 102. Stylops has but two wings : they 

 are not hooked together. 



" Wingless insects. 1. Those with the hind legs formed for leap- 

 ing ; bed-fleas, bird-fleas, dog-fleas. Note. — In Latin, Thysanura 

 (Leach). 



" 2. Those with tail bristles, formed for leaping. In Latin, 

 Anoplura, (Leach)." P. 104. 



The Thysanura of Dr. Leach, and subsequent writers, have 

 not their hind legs formed for leaping. The order does not 

 include bed-fleas, bird-fleas, or dog-fleas. The Anoplura of 

 Leach, and others, have no bristles formed for leaping; nor 

 has any previous author so asserted. The words Anoplura 

 and Thysanura are Greek, not Latin. 



Here we bid the Alphabet " farewell." Had it been written 

 by an unknown hand, we had passed it by as unworthy of 

 notice. As it is, the popularity of the author entitles him to a 

 review ; and we have, to the best of our abilities, given him 

 a fair one. On the Continent, we fear this work will be 

 considered a specimen of British research in this science, be- 

 cause emanating from a Professor of Zoology. By this article, 

 our neighbours will see the value in which the Professor's 

 fellow-countrymen estimate his labours. 



To British Entomologists we feel we ought to apologize 

 for having so long detained them over so worthless a publica- 

 tion: but we can assure them the task is any thing but a 

 grateful one, and has been undertaken solely from a sense of 

 imperative duty. 



Art. XL — Monographia j^geriarum Anglic^. By Edward 



Newman. 



[Obs. This article was intended as a supplementary chapter to " Sphinx 

 Vespiformis ;" but a difficulty in unravelling some of the synonyms prevented 

 its appearance with that work, and a hasty and very imperfect conclusion was 

 published in its place : supposing this chapter added, the previous one would 

 have terminated at p. 51, with the words " pointed out."] 



The divisions and subdivisions in Natural History are, and 

 ever must be, in some degree, subject to the caprice of the 

 nomenclaturist. It is his duty to examine carefully what has 

 previously been done, — to reject what is worthless, — to retain 



