ECOLOGY OF ISLE ROYALE. 301 



colored wings (whence the name of Coral-winged Locust is derived) 

 render it a conspicuous object during its powerful and usually sustained 

 flight. 



8. Circotettix vcrruculatus Kirby. Stations I, 5; I, 7; II, 3; III; 



IV, 5; V, 2; V, 3; V, 9. Lots 121, 131, 132, 144, 108, 147, 179, 208, 201, 

 212, 215, 222, 239, 27, 107 A., 135 A. July 20 to Aug. 16. 



This species is represented by numerous specimens, in general very 

 dark in color, which were secured in the cladonia zone, the beach heath 

 zone, rock clearings and ridges. It is a typically saxicolous locust, de- 

 lighting to sun itself on outcropping ledges of rock or the neighboring 

 patches of bare soil and usually presents a very close resemblance in 

 coloration to its background. 



9. M^lanoplus alasknnus Scudd. Stations I, 7; II, 3; IV, 5; IV, 9; 



V, 2 ; V, 9 ; V, 11 ; and I, '04. Lots 55^ 121, 122, 133, 137, 144, 146, 147, 

 166, 179, 215, 216, 107 A., 154 A., 136 A. July 21 to Aug. 24. 



This species, described from Alaska, is apparently the dominant form 

 of the genus occurring on Isle Eoyale, to judge from its abundance in 

 the material examined and the localities whence derived. It is recorded 

 from clearings, along trails, rock ridges, the beach heath zone, etc. As 

 the original description was based on a small series of specimens, 

 measurements follow to show the range of size in the material at hand. 

 The coloration varies much individually, recalling that of femur-rul)- 

 rum in cool, moist regions. 



Length of body: 6" 20-23.5; 5, 23-29. Hind femora: d>, 12-14; 9, 12- 

 14.5. Tegmina: c?', 19-20.5; 9, 17.5-23 mm. 



10. Melanoplus extremm Walk. Stations II, 5; Y, 5; V, 11. Lots 

 180, 99 A., 136 A. July 8 to Aug. 16. 



This species was found in the cassandra and sedge zone of the 

 swamps, and on the jack pine ridge. It is a typical inhabitant of moist 

 meadows throughout the Canadian zone from Alaska to Nova Scotia. 

 The examples secured are of large size and measurements are ap- 

 pended. 



Length of body: cJ", 20-21; 9 , 26 29. Hind femora: 6", 11.7 12.7; 9 ,13.5- 

 14.5 Tegmina: c?, 11.6-14.5; 9, 13.5-15.5 mm. 



11. Melanoplus fasciatus Barnst.-Walk. Stations II, 3; III; V, 2; 

 V, 3 ; rv, 5 ; V, 9 ; III, '04. Lots 121, 131, 144, 146, 193, 207, 208, 212, 

 214, 231, 215. 222, 239, 101 A., 107 A., 135 A., 143 A. July 20 to Aug. 16. 



This is a common and widely distributed species in the procumbens, 

 heath and cladonia zones. It is a thamnophilous species in the east, 

 and typically short-winged, but in the central part of the continent ex- 

 amples with fully developed wings and tegmina are not rare, and both 

 forms are represented among the material secured. The average size is 

 considerably greater than that of specimens from the east and measure- 

 ments are appended. 



Length of body: c?, 19-23; 9, 23-27. Hind femora; c?, 10.7-12; 9, 12- 

 13.5. Tegmina; c?, 11.5-18.5 (average 12.5); 9, 10.5-18 mm. 



12. Melanoplus femoratus Burm. Station I, 7, camp. July 24. Lot 

 137, a single male. 



13. Melanoplus huronl Blatchley. Stations I, Light-house Penin- 

 sula; I, 5; 111,-5; IV, 5; IV, 7. Lots 35, 44, 121, 131, 183, 35 A. July 

 8 to 29. Seven females from dry, aspen-covered, burned-over ridge, rock 

 clearings and ridges. 



