LIST OF ENTOMOLOGICAL WORKS. 291 



the Purple Emperoi*, from personal observation, and of the 

 growth and changes of the larva. Mr. Westwood adduced 

 the fact, of this valuable communication from so distinguished 

 an individual never having yet seen the light, as a powerful 

 argument in favour of such a Society publishing its transactions. 



Mr. Westwood read a Monograph by himself, on Sclero- 

 derma, an exotic family of Chalcidites, from specimens in the 

 Royal Museum of Berlin, and in his own possession ; illustrated 

 by drawings. 



Specimens of a collection of insects made by Mr. Darwin, 

 (principally in Australasia,) were exhibited ; with descriptions 

 and drawings by Mr. Waterhouse. Among them was an 

 Hymenopterous insect with distinct Coleopterous Elytra, and 

 other strikingly aberrent specimens. An interesting discussion 

 ensued on circular systems. Mr. Waterhouse went at length 

 into the subject of analogy and affinity, and said that they 

 were often confounded by system-makers. He had closely 

 investigated the class Coleoptera, with a view of discovering 

 natural affinities ; but had been obliged to abandon the idea, 

 though he stated his belief that analogies existed, frequently 

 running parallel through whole groups. Mr. Westwood 

 severely ridiculed Mr. Swainson's illustrations of typical perfec- 

 tion, and subtypical tendency to imperfection, or evil ; and the 

 Chairman expressed his total disbelief in all circular arrange- 

 ments. — Adjourned to the 2d January, 1837. 



Art. XLII. List of Entomological Works. 



1. British Entomology; hy John Curtis. Nos, 151 — 156. 

 July to December, 1836. 



2. Illustrations of British Entomology ; hy J. F. Stephens. 

 Nos. 83, 84. 1836. 



3. Monographie des CStohies et Genres Toisins, S^c. ; par 

 M. H. Gory et M. A. Percheron. Livraisons 14, 15. 



4. Magazin de Zoologie ; par F. E. Guerin. Paris. 



