142 NEW NORTH AMERICAN MELANOPLI (ORTHOPTERA) 



forms examined contains five hundred and sixty-six specimens, 

 of which all but thirteen are in the Philadelphia collections. 

 Gymnoscirtetes morsel 2 new species (Plate VIII, figs. 4, 5 and 6.) 



This species shows close relationship to G. pusillus Scudder 

 (Plate VIII, figs. 1, 2 and 3), agreeing in form, coloration and 

 color pattern. The genitalia of both sexes afford, however, 

 striking and constant characters for specific distinction. 



Type. — d 1 ; De Funiak Springs, Walton County, Florida. 

 August 30, 1915. (Rehn and Hebard.) [Hebard Collection, Type 

 No. 215.] 



Size larger than, form similar to, that of pusillus. Head with interocular 

 space about as wide as first antennal joint 3 (wider than normal in pusillus). 

 Prosternal spine rather elongate, beyond base rather slender, cylindrical, 

 scarcely tapering to the bluntly rounded apex (in this sex of pusillus, though 

 individually slightly variable, this spine averages shorter and tapers distinctly 

 to the less bluntly rounded apex). Supra-anal plate elongate shield-shaped, 

 with surface longitudinally trisulcate, the lateral margins moderately reflexed 

 and with two small, elongate, longitudinal convexities proximo-laterad of the 

 small projecting apex (in pusillus much shorter, triangular, with lateral 

 margins very feebly convex and apex blunt; contour similar but much less 

 decided). Furcula as in pusillus. Cerci specialized, distinctive (see Plate 

 VIII, fig. 5). Subgenital plate strongly elevated in a large, medio-dorsal 

 projection, which is fully twice as long as broad, with apex blunt, directed 

 dorso-cephalad (this is a similar but very much more decided development of 

 the type found in pusillus). 



Allotype. — 9 ; same data as type. [Hebard Collection.] 



Size larger than male, larger than in pusillus. Agrees with male in ambi- 

 sexual characters, except that the interocular space averages broader, the 

 prosternal spine is heavier and shorter (this spine in females of pusillus shows 

 the same relative difference, but not as conspicuously, as in the male sex of 

 these species, in all exhibiting slight individual variation). Ovipositor valves 

 elongate; the dorsal pair with disto-dorsal declivity brief to the blunted apical 

 tooth (in pusillus the disto-dorsal declivity is much more elongate, with 

 apical tooth acute) ; the ventral pair with disto-lateral and apical tooth blunted, 

 the portion beyond the disto-lateral tooth very brief (in pusillus with these 

 teeth acute, the portion beyond the disto-lateral tooth elongate). 



2 In honor of Dr. Albert P. Morse, of Wellesley, Massachusetts, whose 

 splendid studies in North American Orthoptera may be said to include among 

 the first publications dealing with the subject in a thoroughly scientific manner. 



3 In the series at hand, however, this dimension shows some variation; it 

 may be said to average wider in morsei than in pusillus. 



