181 



each side near the hind margin, and a yellowish spot behind the eyes. Pro- 

 uotum slightly arched, the three cross-incisions cutting the median carina ; a 

 fourth incision each side near the front mai-gin ; posterior lobe thickly punc- 

 tured, transversely slightly rugnlose. Median carina yellow, bordered each 

 side by black ; central portions of the sides yellow ; posterior lobe yellow on 

 the outer portions of the disk, lateral margin yellow. Carina of the abdomen, 

 sutures, and lower lateral margins of the segments yellow. Elytra reaching 

 the fifth segment, the two chief nerves brown ; rest yellowish, thickly dotted 

 with brown. Wings a little shorter than the elytra; base and disk red, 

 bordered externally with a black band. Venter yellow; an oval black spot 

 on each side of each segment at the base. Posterior and middle legs yellow 

 beneath, darker above; middle femora striped with black; postferior femora 

 with a ])lack stripe above, disk varied with black. 



Dimensions. — Length, 2.5 inches ; elytra, 1 inch ; posterior femora, 1.25 

 inches; posterior tibiae, 1.25 inches. 



Tennessee (De Haan) ; Western America (Thunberg) ; South Carolina 

 (Serville, Burraeister) ; Southern States (Thomas) ; Missouri (?) (Walker). 



Remark. — I think it very probable that this is but a variety of R. centurio. 



Group 7.-PHYMATINI.(?) 



There are no representatives of this group found in North America. (?) 



SuB-FAM. II.-TEITIGIN^. 



Peritrachelia, Fieb. ; Tetricidites, Serv.; Tetricides, Scudd.; Tettigidce, Walk. 



This sub-family is distinguished from the preceding by the following 

 prominent characters : The pronotum extends back over the abdomen to or 

 beyond its extremity. The elytra are rudimentary, in the form of scales, 

 and placed on the sides of the body. Without any pulvilli between the claws 

 of the tarsi. The prosternum not truncate, but advanced and inclosing the 

 mouth in the form of a mutHer. 



The United States species of this sub-family have been arranged in three 

 genera by Mr. Scudder as follows : Teitix, Tettigidea, Batracliidea. 



