THE CANADIAN ENTOMOLOGIST. 143 



M. extremus is said to be the prevailing, if not the exclusive form at high 

 altitudes and latitudes, and the same form of the European locust, 

 Chrysochraon brachyptera, a relative of our Chloealtis, is likewise said to 

 be common in damp alpine meadows -at considerable heights. 



Another feature of interest in the fauna of Fort William and Nipigon 

 is the total absence of Gryllidre. Low, grassy, partly wooded pastures on 

 the Nipigon River, in every way resembling the favourite haunts in the 

 more southern parts of Ontario of Nemobius fasciatus and N. carolimis 

 ( = N. augusticollis, Walk.), were searched for these crickets in vain ; nor 

 could the chirping of any Gryllid be heard either by day or night. In fact, 

 the only Orthopterous sound which was heard at night in this district was 

 the occasional u zeep, zeep, zeep, zeep" of the Northern Katydid ( Scudderia 

 pistillata). During the day, however, the chorus of Orthoptera rivals 

 that of more southern latitudes in the volume of sound produced, though 

 considerably different in quality. Instead of the chirp of Gryllus, and the 

 low undertones of Nemobius, and the familar "ze-e-e . . . jip,j'ip,Jip" 

 of Orchelimum vulgare, we hear on every side the loud, but not especially 

 harsh, "shklip — shklip, shklip, shk/ip" of Mecostethus gracilis, the lower- 

 toned but more rapid and harsher "z-zz-t, z-z-z-t, z z-zt" of Chloealtis 

 abdominalis, and the similar, but more subdued, notes of its congener, C. 

 conspersa, varied by the still softer tones of Stenobothrus curtipennis. An 

 occasional "fsip /" the day note of Scudderia pistillata, and the feeble 

 little trill of Xiphidium fasciatum, which is only audible at close range, 

 complete the orchestra of this northern region, except in the open bare 

 rocky or sandy places, where Circotettix verruculatus keeps up its incessant 

 clatter, and in the open grassy plains at Fort William, where a new and 

 unfamiliar note was heard, leading to the discovery of the Dectician 

 Idionotus brevipes. This note is a continuous and monotonous trill, 

 resembling that of Orchelimum vulgare, with the "j'ips" omitted. 



Turning now to the Temagami District, we find quite different con- 

 ditions as regards the Orthoptera. The chief interest possessed by this 

 district in this regard lies in the fact that it is still largely covered with 

 primeval forests, and thus represents entomologically the conditions which 

 once obtained over a large part of the country. 



Even Nipigon, though well wooded, has apparently been sufficiently 

 cleared to have brought about an immense increase in the number of 

 individuals of almost all the species native there. In the virgin forests 



