68 Unizersity of Michigan 



stridulating from the vantage points of low bushes, vines, and 

 fallen branches. One of their favorite perching places seemed 

 to be in a tangle of green brier, from the midst of which it 

 was nearly impossible to secure them. One specimen was 

 found on a vine at least six feet from the ground; when 

 alarmed it leaped to the ground and attempted to hide under 

 some dead leaves. 



In these woods as many as six or eight could be heard strid- 

 ulating at one time. Their song starts with a very faint, almost 

 inaudible series of notes — zree-zree-zree-zree — which can only 

 be heard if one is very close ; after a long succession of these, 

 gradually increasing in strength, it finally becomes loud and 

 shrill. The song is maintained at this pitch for a variable 

 length of time, after which it again drops to the faint buzz 

 with which it started, or ceases altogether. There are usually 

 long intervals of silence between periods of stridulation. 



RHAPHIDOPHORINAE 



Centhophiliis latens Scudder.^® 



Warren Woods, June 26 to July 4, 1919, i male, 2 females, 4 imma- 

 ture females; September 7, 1920, i male. 



Sawyer Dunes, July 12 to 29, 1920, 14 males, 11 females, 25 imma- 

 ture specimens. 



This species was found to be abundant in the dune forests, 

 but not common in those on the Warren Woods Preserve. 

 Nearly all the specimens were captured in molasses-fusel oil 

 traps. Those not taken in this way were all found with a 

 flashlight at night; one male in a trap baited with decaying 

 meat in company with several species of Necrophorus and 

 Silpha ; several nymphs among dead leaves in the vicinity of 

 the molasses traps ; and one female in an open shed with bare 



26 Determined by J. A. G. Rehn. 



