268 PROCEEDINGS OF THE ACADEMY OF [July, 



Tegmina proportionately even broader than in male, with trun- 

 cation of distal margin more noticeable. Ovipositor moderately 

 stout, distal tooth of dorsal valves weakly curved. 



Measurements {in millimeters). 



Length Length Length Width Length Width 



, of of of of of caudal of caudal 



body, pronotum. tegmen. tegmen. femur. femur. 



cf. Type 22.7 5.7 4.6 ,3. 13.65 3.65 



9. Allotype 3L8 7. 6.2 4. 18.4 4.6 



Coloration. The color pattern is shown by the figure. General 

 coloration dark zinc green and antimony yellow. Head with vertex 

 antimony yellow with a medio-longitudinal band of liottle green, 

 eyes kaiser brown, antennae brilliant coral red, other portions of head 

 yellowish, heavily obscured with dull greenish and with a postocular 

 band of dark zinc green. Pronotum with pale markings antimony 

 yellow, darker markings dark zinc green, those of the dorsum with a 

 brownish suffusion and the darkest areas of the lateral lobes greenish 

 black. In the female the dorsal band is solidly of this color. Tegmina 

 olive brown, in the female shading proximad to clove brown. Abdo- 

 men and underparts yellowish. Cephalic and median limbs yellowish 

 washed with green. Caudal femora with dorsal surface bright 

 antimony yellow, with two broad bands of dark zinc green; internal 

 surface antimony yellow; external surface dark zinc green shading 

 into antimony yellow ventrad, leaving the ventral portion rather 

 broadly this color, broadest proximad; genicular areas black with 

 lobes antimony yellow washed with green. Caudal tibise gobelin 

 blue; spines black except at their immediate bases. 



The pair is unique. 



Melanoplus discolor (Soudder). 



1897. Pezotettix discolor Scudder, Proc. Bost. Soc. Nat. Hist., XX, p. 81. 



[cf, 9 ; Dallas, Texas.] 

 1897. Melanoplus discolor Scudder, Proc. U. S. Nat. Mus., XX, p. 149, 



PL X, fig. 7. (Same series.) 

 1897. Melanoplus inornatus Scudder, ibid., p. 254, PL XVII, fig. 3. [d^, 9 ; 



unknown locality; Monclova (nee Montelovez), Coahuila, Mexico.] 



As the described male of M. inornatus had been destroyed, a 

 female in the Museum of Comparative Zoology from Monclova has 

 been selected as type. The above synonymy is evident when 

 comparison of this specimen is made with cotypes of discolor and a 

 considerable series of that species now at hand. 



The species shows very unusual variation in females having the 

 mesosternal space varying individually from subquadrate to dis- 



