( 61 ) 
Fam. 5. ACRIDIDJE. 
Sub- f am. Acridine. 
Group Tryxalini. 
11. Tryxalis brevicornis, Linn 
G-ryllus (Acrida) brevicornis, Linn., Syst. Nat., II, 692. 
Truxalis brevicornis, Fabr.. Ent. Syst., II, 27. 
(/.) viridulus, Pal. Beauv., Ins. Orth., 81, PI. 3, Fig. 4. 
(m.) notochlorus, Pal. Beauv., Ins. Orth., 80, PI. 3, Fig. 3. 
Acridium ensicornu, Beg. Ins., 3, 499, PI 42, Fig. 7. 
Opsomala punctipennis, Thos., Trans. III. St. Ag. Soc., V, 447. 
Pyrgomorpha brevicornis, Walk., Cat. Bermap. Salt., Ill, 500. 
punctipennis, Thos., Svnop. Acrid., 68. 
I have found this species at but one place in Illinois, and that a very 
small area in J ackson county. 
12. T. viridis, Scudd. 
Chloealtis viridis, Scudd., Bost. Jour. Nat. Hist., 1862. VII, 455. 
Opsomala brevipennis, Thos., Trans. 111. Ag. Soc., V, 451. 
Chrysochraon viridis, Thos., Synop. Acrid., 71. 
Truxalis angusticornis, Stal., Recens. Orth., I, 105. 
Found throughout the state. 
13. T. conspersus, Harr 
Chloealtis conspersa, Harr. Rep., Ed. 1862, 184. 
abortiva, Harr. Rep., Ed. 1862; 184. 
Stenobothrus melanopleurus, Scudd., Bost. Jour. Nat. Hist., 1862, 
VII, 456. 
Chrysochraon conspersum, Thos., Synop. Acrid., 76. 
Occasionally met with in various parts of the state ; not common. 
This and the preceding ( T. viridis ) are in all probability varieties of 
one species. 
14. Stenobothrus admirabilis, TJhler. 
(/.) St. admirabilis, TJhler., Proc. Ent. Soc. Phila., 1864, 553. 
(m.) Thos , Synop. Acrid., 85, (1873.) 
Found throughout the state, but not abundant. 
15. St. maculiDennis, Scudd., Bost. Jour. Nat Hist , 1862, VII, 458 
Found in the northern portion of the state. St. aequalis and St. 
propinquans are but varieties of this species. 
16. St. curtipennis, Harr 
Locusta curtipennis, Harr. Cat. Ins. Mass., 56. 
Chloealtis curtipennis, Harr. Rept., Ed. 1862, 184, PI. 3, Fig. 1. 
Stenobothrus longipennis, Scudd., Bost. Jour. Nat. Hist., VII, 457. 
