THE SENSES OF JNSEi TS 31 



the dram-like space to the body of th< . Thi 



grasshoppers are fiddlers, and during the summer, t><>th by 

 day and night, the air resounds with the mue 

 primitive violinists. This noise mayadd to our pleasun 

 become tedious and disagreeable. Thi:- makes little d 

 ence, for insect-music is all-important. It is the cricl 

 love-call; and were Crickets, etc., deaf and dumb, we are 

 safe in saying the breed would soon run out, because they 

 would not others ise readily mate. 



[nsects also have the sense of touch highly developed; I 

 seal is in the numerous hairs and bristles which clothe the 

 antenna and palpi, as well as the legs and the body itself.* 



The hair- of insects form an inten mbject for micro 



scopic study, si nee the) vary so much in shape. Thesim] 



i in the smaller caterpillars, and the larger naked 

 kind.-, in which the hairs are minute and very slender; 

 while in the hairy species, as the arctians, they are 

 barbed; in certain caterpillars, as I the m . and 



the native silk-worm moths, the h . with 



sharp Bpinules, and are po . having at their baf 



minute poison-gland. Bairy or spiny caterpillars are not 

 eaten l>\ birds, or so easily molested by ichneumon-fl 

 The hair- Borne times hen. me Hat ami broad as in thi 

 <>•' moths and butterflies, I as certain flies and 



*T<> examine the heads of insects in order to watch the movemi 

 of the appendages and mouth-parts, we maj sometimes follow with 

 advantagi Mr. E. 'I' Draper's recommendation of using a cone of 

 pasted paper to he made rather larger than the sp with the 



apex cut ml. \ rigorous insect will soon project it- head through 

 thi aperture. When in this position it should be I behind 



with cottonwool slightl] wetted. The cone can then mimed 



to a slip, apex upward, [usects held in this way will ullov 

 observe the movements of the antenna;, palpi, jav and the 



effects prod need by excitation with saccharine <■: is fluids, 



administered with a >ai>lr pencil. 



