of the North American Orthoptera. 467 



Zool.) Florida, (Norton.) Alabama, (H. Coll.) Texas, 

 (Mus. Comp. Zool.) S. Illinois, (Thomas.) 



3. A. OBSCURUM, Burm., Handb. d. Ent; 11.632. (1838.) 



Gryllus obscurus, Fabr., Syst. Ent. Suppl. ; 194. (1798.) 



This species has much stouter legs than the others. 



Texas, (Mus. Comp. Zool., Uhler.) 



(" The obscurum ? F. of H. Cat. is not in cabinet of 

 T. W. H." Harris Mss.) 



* 4. A. RUBIGINOSUM, Harris Mss. 



" Light rust-red ; face with four elevated lines, the two 

 lateral ones not so distinct as in A. alutaceum; thorax 

 with a very distinct ridge along the middle ; wing-covers 

 opaque, rather paler on the overlapping portion than else- 

 where, with a projection on the outer margin near the 

 .shoulder; wings transparent and glassy, slightly reddish 

 towards the tip and netted with blackish veins ; hindmost 

 thighs reddish within and without, the whitish part bound- 

 ed on both sides by a row of distant black dots, and 

 crossed like a herring-bone with reddish lines ; knees of 

 the same legs with a curved black line on each side, spines 

 of the shins white tipped with black. Length, If in. ; 

 expanse of wings, nearly 3 inches. So. Carolina, from 

 Mr. Nuttall and Dr. Holbrook." Harris Mss. 



Dr. Harris does not mention the faint dark spots on the 

 wing-covers, similar in disposition to those on A. alu~ 

 taceum; there is some variation in the elevation of the 

 medial carina of the pronotum, some individuals showing 

 it but indistinctly. 



Cape Cod, (Sanborn, S. H. S.) Conn., (Norton.) South- 

 ern States, (Mus. Comp. Zool.) Alabama, (H. Coll.) So. 



Carolina, (H. Coll.) 



. 



(EDIPODA, LATREILLE. 



I have here included all the species which would be 

 embraced in the old genus (Edipoda of Latreille ; it is 





