PSYCHE. 



A LIST OF THE ORTHOPTERA OF ILLINOIS.— I. 



BY JEROME MCNEILL, FAYETTEVILLE, ARK. 



The following list is an enumeration 

 of all the species of Orthoptera known 

 to me to occur within the State, as well 

 as those species reported by others but 

 not identified by the writer. Names 

 of the last mentioned class are preceded 

 by an asterisk and accompanied by the 

 name of the person upon whose author- 

 ity they are inserted. If the species is 

 uncommon, one or more localities in 

 which it has been or is reported to have 

 been captured will be given. The 

 earliest date, known to me, of the ap- 

 pearance of each species will be given 

 and unless otherwise stated this date 

 will be understood to be the recorded 

 time of their appearance or capture 

 at Rock Island, 111. 



Gryllidae. 



i. Tridactyhts apicalis Say. Urba- 

 na, July 7. Quincy, Sept. 6. Found 

 in abundance on a sand bar in the 

 river at the List mentioned place by 

 Mr. C. A. Hart of Illinois Univer- 

 sity. 



*2. Tridactyhts terminal is Uhler. 

 Southern Illinois (Thomas, Uhler). 



3. Tridactylus minutus Scudder. 

 Champaign, Aug. 20. 



4. Gryllotalpa Columbia Scudder. 



This "long-winged" mole-cricket I 

 have found in a single locality on Rock 

 Island. This place is between Fort 

 Armstrong and the Powder House on 

 the southern side of the Island. Here 

 the shore is flat and sandy and thickly 

 strewn with fragments of bark and 

 wood brought down by the river from 

 the saw-mills at Moline and left on the 

 low shores by the receding water. My 

 attention was attracted the first time I 

 had the good fortune to walk that way 

 by observing that from many of these 

 pieces of bark which were within a few 

 feet of the water a number of little 

 ridges radiated in crooked lines which, 

 however, never seemed to intersect each 

 other. An exploration of these tunnels 

 revealed at the end of almost every one 

 opened a cricket large or small. Au- 

 gust. 



5. Gryllotalpa borcalis Burm. I 

 have found this species as early as June 

 25 in eastern Indiana. Its first appear- 

 ance about Moline is early in August. 

 At this season of the year at least it is 

 solitary as all the specimens I have cap- 

 tured have been the sole occupants of 

 burrows. Mr. Scudder has compared 

 its song to that of "the distant sound of 

 frogs." I have been struck with the 



