28 THE CANADIAN ENTOMOLOGIST. 



For some reason, either the scarcity of females, the coohiess of tlie 

 evening, or the lateness of the hour, these matings were infrequent, and 

 during the hour I remained I saw less than a dozen pairs leave the throng. 

 Several limes I captured the pair as it was flying away, and except in one 

 case, when the net engaged an extra male, evidently a straggler from the 

 swarm, I took only a male and female. It might be remarked in passing 

 that in this particular species at least the sexes are easily distinguished. 



The exact manner in which mating was accomplished could not be 

 ascertained with any definiteness, the interval between pairing and disap- 

 pearance being so extremely brief that extended observations were 

 impossible. The claws of the species are simple, and if the same rule 

 holds that Mr. Knab finds obtains among the Culicidaj, the act of mating 

 is a simple embrace, without the swinging apart that has been observed 

 among the tooth-clawed mosquitoes. 



As is probably the case with most, if not al), weak-winged f^ies when 

 maintaining their equilibrium in a definite spot in mid-air, these Tipulidae 

 were observed always to face toward the light air-currents that from time 

 to time came through their ranks and blew them gently about. 



An hour of close watching failed to discover any variations in the 

 simple movements of their performance. The gathering darkness, while 

 putting an end to observation, seemed to be no check to their gaiety, for 

 their numbers were not diminishing when 1 left the scene. Possibly, after 

 the manner often noticed among so-called sentient beings, the amusement 

 may have lasted far into the night. 



Errata. — Vol. XXXVIII., p. 400, line 12 from bottom, for "sickly" 

 read "silky." 



Page 425, line 7 from bottom, for "Xanthorhoe fiossaria" read 

 ^^fossaria." 



The Editor much regrets the delay in issuing this first number of a 

 new volume of "The Canadian Entomologist" ; it has been caused by 

 his absence from home attending the recent scientific meetings in New York. 



Subscribers are reminded that the annual subscription of one dollar 

 is now due, and should be sent to the Treasurer by Post-office or Express 

 money order (not by a cheque on a local banK) or by registered letter. As 

 a rule, the magazine is sent until ordered to be discontinued, so as to 

 relieve subscribers of inconvenience. 



Mailed January 12th, 1907. 



