SUBFAMILY I. TETRIGIX.E. 177 



almost invisible on alighting.'' The short-winged form appears to 

 be very scarce, Morse (19(17, 20) recording three from Gulf port, 

 Miss., where they were found near a spring on the edge of the 

 sea beach. 



P. tc.rdiius Hancock (11)02, 113) I regard as an absolute syn- 

 onym of eitcidlatus. In his key he separates te.i-<nnis only by the 

 "stouter middle femora with inferior margin decidedly undulate," 

 while in his description he gives no additional characters which 

 will not apply to cucullatus. Certain it is that the specimens in 

 my collection from Texas, Mississippi and Arkansas, which were 

 named tc.rnus for me by Hancock, and which should represent 

 that species as far as locality goes, cannot be separated from In- 

 diana eiieiiUdtiis, since the lower margin of middle femora in the 

 latter species varies from decidedly undulate to almost entire. 



74. PARATETTIX TOLTECUS (Saussure), 1861, 401. Toltecan Grouse Locust. 



A short, rather broad form differing from cueullatus by characters 

 given in key and by having the median carina of vertex distinct on front 

 portion, the concavity each side deeper; branches of frontal costa more 

 widely separated; pronotum more rugose, its median and anterior carinae 

 higher; tegminal sinus very shallow, the lobe beneath it shorter, much 

 less rounded. Middle femora shorter with strongly compressed margins, 

 the lower one strongly lobed behind the middle. Length of body, $ , 8, 

 9 , 10; of pronotum, $ , 6, 9,7; of hind femora, <3 , 5, 9,6 mm. 



This species is in the Philadelphia collections from Homestead 

 and Grand Ridge, Fla. These are the only stations at which it 

 has been taken east of the Mississippi, it being a Mexican species 

 but known in the United States from Arizona, California, New 

 Mexico, Colorado and Nebraska. At Santa Fe and Las Vegas, 

 New Mexico, it was taken by R. & H. in wet grassy places along 

 the borders of streams and at Tucson, Arizona, was found 3,876 

 feet above tide. Specimens in my collection from Bill William's 

 Fork, Arizona, resemble nymphs of eiteitllatits in their short, squat 

 form, but are stouter and easily separated by the characters above 

 given. A long form from Mexico has been named sonorensis by 

 Hancock (1902, 121). A supposed long form, P. toltecus extensus 

 Morse (1899, 198), described from Arizona and California, is 

 treated by Hancock (1902, 117) as the long form of a new species 

 described by him as /'. morsel (loc. cit. 119). If this be true, 

 Morse's name c.rtensus has priority over the name morsel which 

 represents the short form. 



