504 NOTICE OF ENTOMOLOGICAL WORKS, 



10. A/ifialc's des Sciences NuiureUes, par M. Adoidn. — 

 This is a work of great value; its editor is talented as a writer 

 and reasoner, and one of the most accomplished entomologists 

 of the day. In the number of these Annales for January 1833, 

 is a very long and philosophical memoir, by Professor Baer, 

 which contains some allusions to insects. In the same num- 

 ber is a memoir, by Milne Edwards, on the mouths of some 

 Crustacea. In Vol. XXVII., page 316, is a paper by Mr. 

 Westwood, on Crustacea, In Vol. XXVI., p. 369, a memoir 

 by M. Pictet, on Nenioura; and another, (Vol. XXVIII., 

 p. 44,) by the same author, on Perla. M. Pictet remarks, 

 that the Nemource part with their tails, and the Perlce pre- 

 serve them, when they arrive at perfection : we were aware 

 the presence or absence of this appendage was a distinguishing 

 characteristic of the imagines of these families ; but certainly 

 did not know that both possessed it in the prior stages. The 

 author remarks on the fact of these tribes possessing an active 

 jnipa, as being new ; we have known this from our childhood ; 

 and have often picked the skin of the pupa from reeds, &c. 

 after the imago had burst from it and taken wing. M. Pictet 

 accuses Mr. Curtis unjustly of having drawn the nervures of 

 the wings of Perla cephalotes incorrectly, seemingly not 

 aware that these nervures differ, not only in different specimens, 

 but even in the opposite wings of the same insect. 



11. London and Edinburgh Philosophical Magazine, ^r., 

 Vol.11., p. 443. — Mr. M''estwood has here concluded his 

 " Descriptions of several new British Forms among the 

 Parasitic Hymenopterous Insects." 1. Monodontomerus ; 

 this genus is the same as Priomertis, Walker; the species 

 described by Mr. Westwood has fewer denticulations beneath 

 the metafemora than the species described by Mr. Walker; 

 however, from the figure given, Mr. Westwood's species 

 appears to have two slight denticulations near the apex of the 

 thigh, besides the one mentioned. Dalman's Torymus dentipes 

 is a totally different genus, and we think may be the same as 

 Mr. W^alker's Torymus caliginosus. 2. Mesopolobus is not 

 at all allied to Pachylarthrus ; the abdomen is sessile ; — the 

 species described, M. fasciiventris, is very abundant in the 

 vicinity of London. 3. Platymesopus ; one species of this 

 genus is very common near London in May ; the mesotibicE 



