44 



occurs also in tropical countries; for DR. HOKS- 

 FIELD informs me, that the first year he began 

 to collect the insects of Java he met with a cer- 

 tain species of Papilio in abundance, and spread 

 all over the island ; at this time he fortunately 

 secured a quantity, but, wishing to replace 

 some injured specimens, he afterwards sought 

 in the most likely places, and at the same season 

 of the year, for several successive years, but 

 never met with them afterwards. Butterflies 

 % only during the day, and are found on the 

 skirts of woods, and in the open parts or plains ; 

 some are peculiar to extensive marshes, and 

 many are confined to chalky districts and mea- 

 dows. The best method of catching them is with 

 the FOLDING NET: the insect, when secured, must 

 be pinched in the thorax, at the insertion of the 

 wings, rather smartly, and a pin passed through 

 the thorax or side: for the larger species, the 

 latter method will frequently be found the best, 

 as it will prevent them from fluttering and in- 

 juring their wings when put into the collecting 

 box. 



The Hawk-moths fly during the night, not 

 commencing their flight until very late in the 

 evening, except those species denominated clear- 

 winged sphinges , most of which feed, during 



