172 NORTH AMERICAN MELANOPLI (ORTHOPTERA) 



Measurements. — Length of body $ 24.3, $ 28.7; length of pronotum 

 $ 5.8, 9- 6.7; caudal width of pronotal disk $ 3.2, $ 4.2; length of teg- 

 men $ 7.2, $ 8.8; length of caudal femur $ 12.7, $ 16.2 mm. 



Coloration. — Generally light, dull reddish brown ; occiput, dorsum of pro- 

 notum, tegmina dorso-proximad and in lateral portions brown (but the 

 lighter and darker portions gradually merging and not in distinct contrast). 

 A broad shining post-ocular blackish band terminates abruptly at the prin- 

 cipal sulcus on the pronotal lateral lobes. Abdomen of female delicately 

 marbled with dark brown dorso-laterad. Caudal femora with dorsal surface 

 showing two transverse suffusions and genicular portions brown; internal 

 surface buffy weakly tinged with orange; ventro-external surface the same 

 in male, dull morocco-red in female. Caudal tibiae bittersweet orange 

 (evidently recessive) in male, rich pink in female; internal spines black in 

 distal half, external spines wholly black. 



Explanation of Plates 

 Plate X 



Fig. 1. — Melanoplus saltator Scudder. Topotype. Portland, Oregon. Lat- 

 eral view of distal portion of penis. (Greatly enlarged.) 



Fig. 2. — Melanoplus ascensus ascensus Scudder. Paratype. Mount Shasta, 

 California. Lateral view of distal portion of penis. (Same scale as 

 Fig. 1.) 



Fig. 3. — Melanoplus ascensus validus Scudder. Paratype. Grants Pass, Ore- 

 gon. Lateral view of distal portion of penis. (Same scale as Fig. 1.) 



Fig. 4. — Melanoplus ascensus calapooyae Hebard. Paratype. Divide, Ore- 

 gon. Lateral view of distal portion of penis. 19 (Same scale as Fig. 1.) 



Fig. 5. — Melanoplus pinaleno new species. Type. Mount Graham, Arizona. 

 Dorsal view of male supra-anal plate and furcula. (Much enlarged.) 



Fig. 6. — Melanoplus pinaleno new species. Paratype. Mount Graham, Ari- 

 zona. Lateral view of male cercus. (Much enlarged.) 



Fig. 7. — Melanoplus pinaleno new species. Type. Mount Graham, Arizona. 

 Caudal view of penis. (Greatly enlarged.) 



Fig. 8. — Melanoplus payetti picropidzae new subspecies. Type. Taft, Mon- 

 tana. Dorsal view of male supra-anal plate and furcula. (Much en- 

 larged.) 



Fig. 9. — Melanoplus payettei picropidzae new subspecies. Paratype. Taft, 

 Montana. Lateral view of male cercus. (Much enlarged.) 



Fig. 10. — Melanoplus payettei picropidzae new subspecies. Paratype. Taft, 

 Montana. Dorso-caudal view of penis. (Greatly enlarged.) 



19 Due to the fact that the cochleation of the dorsal lobes of the penis 

 is rotated caudad in ascensus calapooyae, the lateral external surface of one 

 of these lobes is seen in a lateral view of the distal portion of the penis, 

 whereas in figures 1, 2 and 3 the whole internal surface of one of these 

 lobes is seen in the same aspect. 



