OF WASHINGTON, VOLUME XII, litlll. 39 



Uhler. This is strictly an arboreal form, yellowish brown in 

 color, and stridulates from late summer until cold weather. 

 For a number of years, while in North Carolina, South Caro- 

 lina, and Georgia, I had been unsuccessful in catching a glimpse 

 of the maker of that sweet, musical piping heard among the 

 trees during the autumn. I had no doubt seen the crickets, 

 but a strange song must be traced directly to its particular 

 maker if one wishes to feel sure of his identification. How- 

 ever, I met my cricket very unexpectedly one chilly October 

 evening at Thompson's Mills. That evening, after a long 

 period of ineffectual watching among the trees, I walked into 

 my house to find my pu/zling cricket awaiting me by the 

 stove. It was perched on a stick of wood and trilling vigor- 

 orously before my eyes in the glow and warmth of the fire. 

 The trill of this cricket is very high-pitched, rather brief, with 

 a clear, silvery quality of tone that makes it very musical. 

 These crickets are more gregarious in their habits and congre- 

 gate in large numberson particular trees or in certain thickets, 

 where their individual trills, in varied keys, produce a most 

 agreeable harmony during the moonlight nights of late autumn. 

 In July, of the summer of 1909, I met with that interesting 

 little cricket Cvr/o.vip/n/ roliiuihuina Caudell (fig. 5) at 

 Thompson's Mills, north Georgia. This tiny cricket at first 

 sight resembles a Nemobius, but its arboreal habits are quite 

 unlike the terrestrial habits of the members of that genus. 

 Its color in life is a delicate yellowish green, like that of some 

 of the crickets. This cricket prefers the foliage of shrubs and 

 trees. I have never heard it singing less than 6 or 7 feet from 

 the ground. I found it exceedingly abundant on the foliage 

 of peach trees in an orchard at Thompson's Mills. It 'was 

 also abundant in the foliage of the tallest oaks of the settle- 

 ment and in the low trees and grape-vines, and exceedingly 

 active, so that it is not easily taken. Its notes are very brief, 

 exceedingly high pitched trills which are uttered very rapidly 

 and persistently by day and by night. It is, however, more 

 strictly a night singer, and its great chorus begins late in the 

 afternoon and continues far into the night. Once the chorus 

 has begun it is impossible to single out a note; the evening 

 atmosphere everywhere overhead seems filled with an indis- 

 tinguishable, silvery trilling. These crickets sometimes con- 

 gregate in great numbers in certain trees. Their trills then 

 become wonderfully synchron;i1 until veritable waves of music 

 issue from the trees. I have frequently noted this synchrony 

 in a certain isolated holly tree where a great many dwelt. For 



