AnnulQsa Javankci, 259 



and coherent in all its parts. This therefore Mr. MacLeay has 

 refrained from attempting ; but with the laudable desire of grati- 

 fying those who felt anxious to accompany him into greater detail 

 than he had previously entered into, he has undertaken to des- 

 cribe the insects collected in Jata by Dr. Horsfield, and which 

 XKow form part of the collection of the East India Company, em- 

 ploying these as so many stations from which views may be ob- 

 tained bufl&cient to furnish a competent idea of the ground plan 

 af the whole. 



In a masterly preface, after an exposition of the mode and the 

 localities in which the collection was formed, and which render 

 it a fair sample of the Entomology of Java, Mr. MacLeay pro- 

 ceeds to examine the advantages and defects to the scientific as 

 well as the unscientific reader, of the various plans on which a 

 descriptive catalogue of subjects of natural history may be formed, 

 and assigns a deserved pre-eminence to that which is designed to 

 pupply such information as is calculated to lead the mind to a 

 philosophical investigation of the science of Nature. It is this 

 principle which he proposes to pursue in the progress of his work, 

 this first number of which is devoted to that group of the Coleop- 

 iera which is distinguished by its chilopodiform larvae. This is 

 regarded as a Tribe, and the denomination of Chilopodomorpha 

 is affixed to it, its characters being derived from the larva as well 

 as the perfect insect, and laid down in the following terms: 

 '' Larva chilopodomorpha plerumque carnivora, corpore processu- 

 bus duobus posticis styliformibus dorsalibus semper instructo : 

 Imago plerumque pentamera, mandibulis cornels, maxillis bipar- 

 titis vel processubus duobus ; lacinia interiori in unguem corneum 

 incurvum fere semper desinente ; laciniS- exteriore saspius biarti- 

 culata interdura palpiformi." From this definition it will be 

 perceived that the internal maxillary palpus, as it is commonly 

 termed, of the Cicindelidce, Carabidwy Dytiscidoe^ and Gyrinidw^ 

 is regarded as an external process of the maxilla, which, being in 

 these families biarticulate, assumes a palpiform appearance; a 

 view which is fully borne out by the admirable comparison of the 

 parts of the mouth in winged insects instituted by Savigny. 



The Chilopodomorpha are divisible into five stirpes, two of 



r2 



