76 ORTHOPTERA. 



c 1 . Antennas of the <$ considerably longer than the head and 



pronotum together. 



d 1 . Larger. Disc of the pronotum greatly clepsydral, the lateral 



carinas diverging noticeably both in front and behind ; 



tegmina of the $ generally much surpassing the hind 



femora [10. pratorum, Scudd.] 



d 2 . Smaller. Disc of the pronotum only slightly clepsydral, 

 the lateral carinas nearly parallel on the anterior lobe and 

 divergent behind ; tegmina only a little surpassing the hind 



femora 11. neglecta, Rehn. 



c 2 . Antennas of the $ not or scarcely longer than the head and 

 pronotum together. 

 d 1 . More slender. Tegmina and wings, even of the ? , reaching 

 considerably beyond the tips of the hind femora. 

 e 1 . General colour green or olive. Fastigium of the vertex 

 acutangulate, as long as wide. 

 f 1 . Wings infuscated. General colour grass-green; tegmina 



without the row of discal dark spots 12. aculeata, Rehn. 



f 2 . Wings not infuscate. General colour olive-green ; the 



tegmina provided with a row of faint discal spots . . 3. olivacea, Morse. 

 e 3 . General colour brown or testaceous. Fastigium of the 

 vertex obtuse-angulate, or, at most, rectangulate in front, 

 shorter than broad. 

 f 1 . Antennas very slender, as long as the head and pronotum 

 together, even in the ? . Lateral carinas of the pro- 

 notum distinctly, and often considerably, divergent 



both in front and behind [6. pelidna, Burm.] 



/ 2 . Antennas more robust, the basal joints depressed, the 



apex gently acuminate, in the $ shorter than the head 



and pronotum together. 



g 1 . Lateral carinas of the pronotum only gently bowed. 



Colour uniformly green or testaceous, without dusky 



mottlings 4. arctata, Walk. 



g 2 . Lateral carinas of the pronotum more decidedly arcuate. 

 Entire insect usually profusely variegated with dark 

 mottlings, the tegmina very often evenly marked with 



dark flecks i 3> punctata, De G. 



d*. More robust. Tegmina and wings, even in the £ , but little 



surpassing the tip of the hind femora. 



e\ Body greatly compressed and deeper than usual. Lateral 



carinas of the pronotum comparatively near together and 



nearly parallel on the front lobe, strongly divergent on the 



hmd lobe 14 # mexicana, Sauss. 



e\ Body less compressed and not unusually deep. Lateral 



