The special resting habit of the plume moths (PI. Ill, fig. 4), is 

 particularly interesting, as the wings in these species are divided 

 longitudinally into five plumes or feathers on each side of the body. 

 These are closed one over the other like a fan, and held out stiffly 

 at an angle to the body, making the insect very unlike a moth in 

 appearance. I have not as yet investigated the resting habits of 

 moths and butterflies sufficiently to say whether any attempt at 

 systematic classification of species could be made from it, but the 

 attitude assumed by each species is so constant — even to resting 

 with the head up or down (PI. Ill, fig. 5), or the body horizontal — 

 that, when one has had a considerable amount of experience, it 

 becomes possible to get a fairly accurate idea of the identity of an 

 insect, even from the very brief inspection that is possible when 

 driving or cycling rapidly by. 



