Oct., '04] ENTOMOLOGICAL NEWS. 263 



Notes on the Orthoptera of the Keweenaw Bay 



Region of Baraga County, Michigan. 



By James A. G. Rehn. 



(Continued from p. 237, Vol. xv. No. 7.) 



Dissosteira Carolina (Linnaeus). 



Twelve specimens ; four males, eight females. Pequaming, 

 August 8, II, 20, 21, 22, 25 and 31. Road along lake shore, 

 August 20. Brule on mainland opposite Pequaquawaming 

 Point, July 31. 



" The first specimens of this species were seen on July i8th. 

 They did not become very common till the end of the month, 

 and were restricted to colonies along dry, dusty roads. In 

 September, when all other grasshoppers were very much 

 thinned out, this species had not diminished in numbers." 



Gircotettiz vermcnlatns (Kirby). 



Twenty-five specimens ; fourteen males, eleven females. 

 Pequaming, July 18 (shore, edge of tamarack swamp), 22, 27, 

 31 ; August 2, 21 and 31, L'Anse, July ^3. Point Abbaye, 

 July 31, Shore of Keweenaw Bay, L'Anse et Vieux Desert 

 Reservation, July 22. 



"This species first appeared on July i6th ; they increased 

 rapidly in numbers and were quite common until almost the 

 end of August, about the town, in the lumber-^ard and among 

 driftwood on the shore. By September ist they had become 

 very scarce, and the few specimens I took were in bad condi- 

 tion. Their flight is very strong, and they spring off with 

 such swiftness that they are difficult to catch even with a net. 

 The}' are very shy, but can be approached from the rear to 

 within striking distance, if sufficient care is used. They fly 

 high w'hen alarmed, sometimes going far above the treetops, 

 and I have seen one, when thoroughly frightened, fly swiftly 

 out over the lake until lost to view. They start up with a 

 sharp crackling ; when frightened, however, usually fljnng 

 silently ; but they delight in hovering ten or fifteen feet 

 above the ground, making, meanwhile a great clatter, which 

 may be heard many yards awaj-. This noise is kept up while 

 ascending and descending, and is usually given two " crackles" 

 at a time." 



