215 



Hart ('06, p. 81) describes the habitat of this grasshopper as 

 "open woods and thickets, and along rail fences and roadsides." 

 Species which now characterize our open, partly cleared woodlands, 

 in the primeval forest probably frequented forest margins, bluffs, 

 and the borders of streams, or open patches in woods where a tree 

 had fallen, and similar situations. With a thinning out of the for- 

 est (up to a certain degree) their habitat is increased in area, but 

 when by clearing the woods disappear, their habitat vanishes. 



LOCUSTID.E 



Sciiddcria fitrcata Bruner. Forked Katydid. (PI. LVII, fig. 5.) 



One female was taken in an open area in the upland forest on 

 low shrubs (Sta. IV, a) Aug. 20 (No. 109). Another specimen was 

 taken near Vera, Fayette county. 111., on a finely developed colony of 

 prairie vegetation among y^M^ro/70^o«, Sept. i (No. 185). 



Blatchley ('03, p. 349) states that it is "most frequently seen on 

 the low bushes and trees about the margin of thickets and along 

 fence rows, but in the prairie country north [in Indiana] it frequents 

 coarse grasses and weeds." 



Amhlycorypha rotitndifolia Scudd. Round-winged Katydid. (PI. 

 LVII, fig. 2.) 

 A single female of this species was taken in the glade in the low- 

 land forest (Sta. IV, c) Aug. 20 (No. 117); and also a freshly 

 emerged female (No. 143). Blatchley ('03, p. 352) states that this 

 is "more of a terrestrial species than ohlongifolia, being often seen 

 on the ground, or on clumps of tall grass and weeds which grow in 

 damp ravines." Hart ('06, p. 84) says that this species is found 

 "On grasses and weeds in damp ground." 



Microcentruin laurifoliuni Linn. Angle-winged Katydid. (PI. LVII, 

 figs. I and 2.) 



Males were found on hickory sprouts at the cleared margin of 

 the upland forest (near Sta. IV. a) Aug. 22 (No. 135). They 

 were chirping loudly, in the early afternoon, on sprouts less than 

 two feet high. 



Cyrtophylliis perspicillatus Linn. Common Katydid. (PI. LVIII, 

 fig. I.) 

 One male was taken in the partly cleared area bordering the for- 

 est (near Sta. IV, a) Aug. 23 (No. 145). Here, among stump 

 sprouts of hickory, oak, and young sassafras, about two to three 

 feet high, stood this male stridulating in the sun at 2:30 p. m., but 

 the note did not seem exactly normal, that is, as when heard at night. 



