88 INSECUTOR INSCITI^ MENSTRUUS 



Culiseta incidens Thomson. 



Not taken, though as it occurs at Banff, it may possibly be 

 found further down the range. 



Before leaving the subject of the Rocky Mountain fauna, it 

 may be well to refer to other collections made in the same gen- 

 eral region. The writer, with Messrs. Caudell and Currie, col- 

 lected in Kaslo, British Columbia, in 1903. At that time I had 

 no knowledge of the adults and had to depend on the determina- 

 tions of others. All of the black-legged species were at first 

 lumped together as "punctor." Later Mr. Coquillett differ- 

 entiated the species puUatiis, but this was made again the 

 receptacle of several forms. Most of the old specimens are in 

 bad condition, but on going over them again, I easily separated 

 a series of cataphylla and another of lazarensis, showing that 

 we have to do with practically the same fauna as at Glacier 

 National Park. The species trichurus was described from 

 Kaslo. Later I made collections at Banff and Lake Louise. 

 The fauna of the former is dominated by intnidens and 

 cataphylla, of the latter by cataphylla alone. I have also good, 

 collections from Mr. C. Garrett from Cranbrook, B. C, and 

 here, also, cataphylla is the dominant form. The predominance 

 of lamrensis in the Glacier National Park indicates a more 

 continuously forested condition. Banff has many open spaces. 

 and Lake Louise and Cranbrook are dominated by the open 

 fauna. Of course the occurrence of suitable river-pools has 

 much to do with the abundance of cataphylla. Such pools 

 appear to be scarce in the Glacier National Park. 



I am indebted to Mr. George E. Goodwin, Chief Civil En- 

 gineer of the National Park service ; Mr. J. Ross Eakin, Super- 

 intendent of the Glacier National Park ; Mr. H. A. Noble, of the 

 hotel service ; and Mr. George Moore, of the transportation 

 service, for assistance kindlv rendered or offered. 



