13 INSECUTOR INSCITI^ MENSTRUUS 



Several names have been proposed by the older authors 

 for species in this fauna, and some of these names have been 

 arbitrarily identified on the basis of the types being unrecog- 

 nizable in this group. (Compare Howard, Dyar & Knab, 

 Monograph, iv, 757.) The descriptions certainly are unrec- 

 ognizable ; but the types themselves may be identifiable by a 

 competent examination, which has never been applied. I pro- 

 pose, therefore, to brush aside these identifications and list 

 the following names to be identified later: testaceus van der 

 Wulp,^ provocans Walk., impiger Walk., and implacabilis 

 Walk. 



Mr. F. W. Edwards, who had charge of the mosquitoes at 

 the British Museum until duties connected with the war took 

 him away, kindly made a preliminary examination of the 

 three Walker types for me. He found the specimens in very 

 bad condition, as was anticipated, and he did not have with 

 him Canadian material to compare, but his notes indicate that 

 impiger is probably punctor, form ahserratus, while implaca- 

 bilis seems to be typical punctor (auroides). Of provocans 

 from Nova Scotia I am not so sure; but it would seem to be 

 typical punctor. It can hardly be the form described by us in 

 the monograph as provocans (page 748), which is a dark 

 form like ahserratus. Further comparisons will be made, with 

 specimens. 



The species are treated in the order of importance, begin- 

 ning with those most essentially Canadian and ending with 

 those that, while occurring in this fauna, are also distributed 

 elsewhere. 



These species are essentially forest-lovers. They do not 

 come out onto the prairie except for limited excursions after 

 nightfall. The prairie species likewise keep to their own espe- 

 cial habitat ; but the peculiar distribution of prairie and forest 

 toward the north, where patches of forest occur in the prairie 

 and then patches of prairie occur in the forest, makes the 

 species dovetail in an interesting way. In Banff, Alberta, for 



^See the discussion under Culex saxatilis. 



