( 62; 



Quite common, especially in the northern and central parts of the 

 state, the long-winged variety appearing to predominate in the central 

 part of the state, at least as far as my observations have extended. 



Group Okuipodini. 



17. Stetheophyma gracilis ?, Scldd. 



Arcyptera gracilis, Scudd , Bost. Jour. Nat. Hist., VII, 463. 



Stetheophyma gracilis, Thos., Synop. Acrid., 99. 

 I have seen but a single specimen of this genus captured in Illinois; 

 it was taken in the extreme northern portion. I saw it but for a short 

 time and am not positive as to the species. 



18. Tragocephala viridifasciata, Haub 



1. Variety virginiana, Fabr. 



Gryllus virginianus, Fabr. Syst. Ent., 291. 



(Locusta) virginianus, (xoeze. Ent. Beitr., II, 106. 

 Acridium virginianum, Oliv. Encyc. Meth., Ins. VI, 225. 



(Oedipoda) virginianum. DeHaan. Bijdr. Kenn. Orth., 143. 

 Oedipoda virginiana, Burm. Hanb. Ent , II, 045. 

 Grylius (LocuStaj viridifasciatus, Goez. Beitr., II, 115. 

 Acrydium viridifasciatum, Deg., Mem., Ill, 498. 

 Locusta viridifasciata, Harr., < at. Ins., 56. 



(Tragocephala) viridifasciata, Harr. Rep., Ed. 1862, 182. 

 Gomphocerus viridifasciatus, Uhler, in Harr., Ed. 1862, 181. 

 Tragocephala viridifasciata, .Scudd., Bost. Jour. Nat. Hist,VII, 461 . 

 Gryllus (Locusta) chrysomelus, Gmel, Linn. Syst. Nat., IV, 2086. 

 Acridium marginatum, Oliv. Encyc. Meth., Ins. VI, 229. 

 hemipterum. Pal. Beauv , Ins., 145. 



2. Variety in/uscata, Harr. 



Locusta (Tragocephala) infuscata, Harr. Rep., Ed. 1862, 181. 

 Gomphocerus infuscatus, Uhler, in Harr. Rep., 3d Edn., 181. 

 Tragocephala infuscata, Scudd., Bost. Jour. Nat. Hist., VII, 466. 



3. Variety ra/'iata, Harr. 

 Locusta radiata, Harr. Cat., 56. 

 Tragocephala radiata, Harr. Rep., Ed. 1862, 183. 

 Gomphocerus radiatus, Uhler, in Harr. Rep., 181. 



The green variety {virginiana) is very common throughout the state, 

 the female being apparently more abundant than the male ; on the 

 other hand, the male of the dusky or brown variety {infuscata) appears 

 to be umch more abundant than the female of that variety. It is this 

 male that greets us first in the spring with his crackling notes. Variety 

 radiata is occasionally met with in the southern and central parts of 

 the state, and probably in the northern sections also. 



