so 



The pupa are completely inactive, being wrapped in their hard 

 outer skin like a mummy in its bandages, Ind as a matter of course 

 cease eating until they come forth perfect beetles. They are rarely 

 enclosed in cocoons, but generally the larvae, residing in the etotl 

 or rotten wood, form cells by turning round and roundf in which ly 



Honied , P n?ri e ' vJ™ Sp6 ? ie8 belon g in S to .the families Curcu- 

 lionidao and Chrysomehda3 construct distinct cocoons of web, which 

 they attach to the plants on which they feed. The le^s are aTways 

 free not being enclosed in the pupa, envelope. I may add here a7a 

 matter of interest to the reader, that this order probably contains 

 more species than any other, the number amounting to nearly one- 

 S ***" whole c ass Mr. Crotch's check-list of those found in the 



alr P dvt ate f C ° n amS T^ 45 ° ; full .Y one-seventh of this number have 

 already been found m Illinois. 



This will give the reader some idea of the immense varieties of 



nsect forms there are to be found in our country, and of : the time and 



abor necessary to examine, determine and describe them, and trace 



Sr? thGlr Vari ° US tra »sformations and history It should 



also lead us to proper contemplation of that Infinite Wisdom which 



has formed them and adapted each to its appropriate work 



divisio^^ arrangement and classification of the 



diMsions and families of this order so fully in his report that it would 

 be wholly unnecessary for me to allude to it were T no for the fact 



il faU S in e t^h'A hlC 1 ' M , heret ° f0re u Stated ' is intended « iW? 

 t ci ii + ? } e hands of manv who have not a copy of the former 



relates to ft?*? 8 P"" 1 *^ *"&* the ^rangem^nt, so far af it 

 \nd\Lt* f am^ies containing injurious species herein mentioned, 

 and the two or three families which include our most important and 

 beneficial rapacious species. important ana 



ter^for J divMint^* ar / °- ^ ^ nish the most Prominent charac- 

 senaratino null ^ mt ° *"**? Sections or divisions, without 



n^lLteLT 1680 ' gr ° UpS; m0ther WOrd8 ' aCCOrdin S t0 a 



Arranging them according to the number of joints in the tarsi we 

 have four primary divisions, as follows : ' 



1st Section. Pentamera. Five joints in all the tarsi 



A£ra<te& Anteri01 ' ^ middletei ' "ve jointed; 



3d Section. Tetramera. Four joints in all the tarsi. 



4th Section. Trimera. Three joints in all the tarsi. 



1 here are a few unimportant exceptions to this arrangement but 

 SfthSuS^* ° affeCt itS - ValU t Thefemilies of this o^ef mention 

 S^^folfows 6 : m ° Ur lntroduction a - ranged under these divis- 



teJ^XiuS^^ Carabidac, Dyticidae,Gyrinidae, Silphidae, Hts- 

 tenaae , mtidulidae, Staphylmdac, Lucanidae, Copridae. Apaodidae Geotru- 



aae, rtinidat, Lymexilonulae, Cupesidae, Lamppridae, and Clcridae. 



Section 2 Contains but a few, and mostly small families amono- 

 Jortanr ybe mentioned ******* TenJSsT^emZ^ 



