Scudder.] 468 [March 24, 



Synopsis of the species. 



1. Median incision of the pronotal crest distinctly oblique . 2. 



1. Median incision of the pronotal crest vertical 4. 



2. Median carina very high, the height of the front por- 

 tion of the posterior lobe equalling the height of 



the eye cristatum. 



2. Median carina moderately high, the height of the front 

 portion of the posterior lobe nearly equalling the depth 



of the eye . 3. 



3. Tegmina with the usual transversely trifasciate arrangement 



of fuscous dots collare. 



3. Tegmina " with a broad stripe of fuscous dots and small 

 spots along the middle field, from the base to the apex" 



(Thomas) wyomingianum. 1 



4. Tip of wings infuscated 5. 



4. Tip of wings pellucid, excepting the dark veins . balteatvm. 



5. Hindtibias red, with a distinct pale basal annulus, more or less, 



generally very broadly and distinctly bordered on both 



sides with black Bolli. 



5. Hind tibiae wholly red, or at most with only a faint pale basal 

 annulus cequale. 



1. Spharagemon sequale. 



Gryllus cequalis Say, Journ. Acad. Nat. Sc. Phil., IV, 307; lb., Ent. 

 N. Amer., ed. LeC, n, 237. 



Locusta cequalis Harr., Hitchc. Report, 583; lb., ib. 2d ed., 576; 

 lb., Catal., 56; lb., Ins. Inj. Veg., 1st ed., 144; 2d ed., 165; 3d ed., 

 178. 



(Edipoda cequalis Erichs., Archiv f. nat., ix, ii, 230; Uhl., in Harr. 

 Ins. Inj. Veg., 3d ed., 178; Scudd., Can. Nat., vu, 287; lb., Bost. 

 Journ. Nat. Hist., vu, 470; ? Thorn., Proc. Acad. Nat. Sc. Phil., 

 1870, 80; Walk., Cat. Derm. Brit. Mus., iv, 731. 



Trimerotropis cequalis Scudd., Geol. N. Hampsh., I, 377. 



This species has been confounded by Uhler and Smith with Trime- 

 rotropis verruculata (Kirb.) Scudd., from which it is generically dis- 

 tinct. I have taken it in Yermont, about Boston, on Cape Cod 

 and at Nantucket, Mass., in Minnesota and the Red River of the 

 North. It has been taken in Maine by Dr. Packard and Mr. Smith, 



1 1 have never seen this species. 



