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NEW YORK STATE MUSEUM 



hair, pecten with three prominent and several smaller serrations 

 [fig. 30]. The oomb consists of a somewhat irregular patch of 

 scales arranged in about three rows, each scale being somewhat 

 spatulate and tipped with numerous fine hairs and a terminal 

 coarser spine [fig. 28]. 



Fig. 25 Wing ofC.cantans 



This larva according to Dr Smith is somewhat larger and 

 more robust than C. canadensis, wMch latter is fre- 

 quently found in woodland pools and springs associated with 



Fig. 26 Larva of C. cantans 



this species. The two larvae are not easily sepaj^ated, though this 

 form has shorter, stouter antennae. Both have short breathing 

 tubes, but that of C. cantans is shorter and approaches the 

 form of C . s o 1 1 i c i t a n s , with which it is also associated in 

 brackish pools on salt meadows. The latter has still shorter, more 

 slender antennae and has the labrum oblong, truncate, while in 

 C . cantans it is rounded, and as a whole, somewhat heart- 

 shaped. 



