Silk- Worms and Giant Night-Butterflies 97 



below with white on each side of their bod}'. The 

 stripes begin at the fourth department, segment, 

 or ring, and end at the tail ; the green thorn bushes 

 on its body are tipped with black and are all of 

 the same length; there are about thirty thorns to 

 each bush, all springing from a common centre, 

 and there are about six of these bunches of stinging 

 spikes on most of the rings. But on the last two 

 rings there are only five and on the first four there 

 is an additional cluster on each side near the 

 bottom. 



The pretty io moth, butterfly or miller (Figs. 

 89 and 90) is much smaller than the giant moths 

 already described, but for other reasons it is placed 

 in the group containing the giant silk-worms. 

 When I was a big boy, by much research and in- 

 quiry I found that the name of this miller was 

 then Satm-nia io, but there is not much use in load- 

 ing one's head up with scientific names be- 

 cause they do not last long ; since then I have heard 

 it called Hyperchiria io and Antomeris io, and by 

 the time my readers are as old as the writer it 

 may be called after Jupiter's spectacles or Mars's 

 binoculars, but io will probably stick, so we will 



