218 NORTH AMERICAN MELANOPLI (ORTHOPTERA) 



Specimens Examined. — 204; 102 males, 77 females and 25 immature 

 individuals. 



Of these 70 $ , 52 $ and 20 immatures, previously recorded, are at hand 

 from Miami Beach, Virginia Key, Cape Florida, Miami, Homestead 

 (Florida City), Detroit, Long Key, Boot Key, Key Vaca, Big Pine Key, Key 

 West, Pineland on Pine Island and Useppa Island, Florida. 



Florida: Royal Palm Key, III, 3, 1917, (M. Hebard; in undergrowth of 

 tropical hammock land in Everglades), 1#, 1 medium juv. $ . Key Largo, 

 VIII, 9, 1930, (R. H. Beamer), 4£, 19, [Univ. of Kansas]; VIII, 21, 1931, 

 (Bradley and Knorr), 1 large juv. 9 . Lower Matecumbe Key, IX, 4, 1931, 

 (Bradley and Knorr), 2$ . Thirty miles west of east border of Everglades 

 on Tamiami Trail, VIII, 30, 1931, (Bradley and Knorr), 1$. Fort Myers, 

 VIII, 11, 1930, (R. H. Beamer), 2$, [Univ. of Kansas]; IX, 13 to 15, 1917, 

 (Rehn and Hebard; generally distributed in wire-grass, Saw Palmetto, 

 Bayberry undergrowth of Pinus caribaea forest on edge of cypress swamps) , 

 23£, 20$, 2 medium juv. $, 1 medium juv. 9. Iona, IX, 13, 1917, (J. A. 

 G. Rehn ; in undergrowth of pine woods) , 1 $ , 19. Useppa Island in 

 Charlotte Harbor, V, 19, 1919, (M. Hebard), 1$. 



The extremes in size are found in material from the imme- 

 diate vicinity of Biscayne Bay. These are: length of body 

 3 20.3 to 27.4, 9 26. to 34.9 mm. 



Explanation of Plates 



Plate XII 

 (Figures of male genitalia) 



Fig. 1. — Melanoplus marshalli marshalli (Thomas). Marshall Pass, Colo- 

 rado. 42 Dorsal view of furcula and supra-anal plate. (Much 

 enlarged.) 



Fig. 2. — Melanoplus marshalli marshalli (Thomas). Marshall Pass, Colo- 

 rado. Lateral view of apices of dorsal lobes of penis. (Greatly 

 enlarged.) 



Fig. 3. — Melanoplus marshalli marshalli (Thomas). Gothic, Colorado. 

 Caudal view of penis. (Much enlarged.) 



Fig. 4. — Melanoplus marshalli ascensor (Scudder). Lake Martha, Wasatch 

 Mountains, Utah. Dorsal view of furcula and supra-anal plate. 

 (Same scale as Fig. 1.) 



Fig. 5. — Melanoplus marshalli ascensor (Scudder) . Lake Martha, Wasatch 

 Mountains, Utah. Lateral view of apices of dorsal lobes of penis. 

 (Greatly enlarged.) 



42 This specimen is figured as it came probably from near the type 

 locality. The majority of our specimens of the race, however, have the 

 furcula longer to different degrees and the supra-anal plate variously 

 narrower. In none however are the furcula as long or the supra-anal plate 

 as narrow as in marshalli ascensor, shown in figure 4. 



