SUBFAMILY II. OEDIPODIN.E. 283 



ion. The eastern form described by Morse (1894b, 220) as 8. 

 (rt/iitilc scudderi and afterward (1895a, 207) changed to 8. collare 

 scnddci i I regard, however, as an absolute synonym of wyomingi- 

 anum. In none of his papers has Morse given any fixed characters 

 separating the two forms, and in his Key to New England Oedi- 

 podina? (1897, 35) he does not recognize wyomingianum as inhab- 

 iting New England, though Walden (1911) records it from a num- 

 ber of localities in Connecticut. The comparative distinctions 

 given by Morse of greater size of scudderi and different fasciation 

 of inner face of hind femora will not hold. Specimens of un- 

 doubted iryoHiiiifi'miiHiii at hand from northern Indiana and Illi- 

 nois and Gainesville, Fla., exceed in size any measurement given 

 by Morse for scudderi, and R. & H. (1916, 187) show that the same 

 is true of specimens from Virginia and Georgia. The black bars 

 on inside of hind femora of wyomingianum vary from two to four, 

 being sometimes connected and often not, so that their value as a 

 distinctive character is nil. 



The known distribution of wyomingianum, as here recognized, 

 is a wide one, extending from Maine and southern Ontario west 

 to Minnesota, Wyoming, Utah and Colorado, and south and south- 

 west to North Carolina, Georgia and northern Florida, where it 

 has been recorded only from Fernandina, Gainesville and Live 

 Oak. In Oklahoma and Texas it appears to be replaced by 8. cris- 

 tdtinn Scudd., distinguished mainly by its higher median carina, 

 which will probably prove to be only a race or variety of wyom- 

 i in/in nit in. The latter is said by Brunei' to inhabit the high 

 prairies of Nebraska. 



Of the occurrence of iri/o/iiiiif/iaiiiiin in Minnesota Somes (1914, 

 57) says : "We have, as yet, found this species only in the south- 

 eastern part of the State, usually on the sandy margins of the 

 Mississippi and its tributaries. Upon the almost clear sand which 

 it frequents, its pale color and faintly marked pattern blend beau- 

 tifully with the lights and shadows, rendering it almost invisible 

 until it moves. Its flight is swift and strong, though not usually 

 prolonged, and it rises with almost the swiftness of a Cicindela." 



The 8. ocnlatum Morse (1894b, 232) is a synonym and the New 

 England records of 8. try mile Say by Harris and Scudder are also 

 to be referred to wyomingianum. 



VIII. SCIRTETICA Saussure, 1884, 135. (Gr., "to leap" + 



"grasshopper.") 



Small slender bodied, moderately compressed species, having 

 the disk of vertex rather narrow, elongate-oval, its sides low, con- 



