THE CANADIAN ENTOMOLOGIST. 177 



tree, and down again come the same two species in crowds, especially 

 citieritia, one of which comes down my neck, with a fat noctuid larva to 

 keep it company. Such are the evils of shaking sallows, though when 

 the trees are from eight to twelve feet high, reaching the blossoms is out 

 of the question. And, after all, I believe shaking pays best, except for 

 geometrae, which take wing in preference to dropping. The few next 

 trees yield the same species, one specimen of Tceniocampa pacifica, and 

 one of another form, which Prof Smith says is also pacifica, but my 

 observation of the two forms this spring has led me to believe that he is 

 mistaken. Forcing my way through a thicket of sallow bushes does not 

 agree with the poor old parasol ; it caught me many moths last spring, 

 and I am loth to part with it, but the cover has now more holes than silk, 

 and the framework is broken beyond repair, so it is left to be ignomini- 

 ously chewed by cows. I have now to shake my moths on to mother earth, 

 or, better still, in some instances, into water. A bath seldom seems to 

 injure them, and when lying on the surface of water they are easily seen, 

 and if out of reach of the hand can be fished out with a long stick. 

 Calocampa ciiieritia appears rather to appreciate a dip, at least I should 

 judge so from the fact that I frequently leave them lying inert on the 

 water, after I have picked out all the more desirable "fry." T. pacifica, 

 on the other hand, seldom lies still on the water, and from the way it skims 

 along the surface until it finds some twig or terra firma, might almost be 

 called a good swimmer. A few more trees are tried and two specimens 

 of T. pacifica appear on the water. Ah ! There is a fine form, just out 

 of reach ; I look around for a stick to fish him out, but before I can find 

 one, away he skims across the pool as though he had suddenly recollected 

 a pressing engagement on the opposite bank. He has not gone far before 

 there comes a splash, and the rings on the water diverging from the spot 

 where I last saw my fine form oi pacifica tell me that he has gone to assist 

 the internal economy of a young jack. About an hour's work sees me 

 "through " for the night, and after lo p.m. I have never found a second 

 visit to sallows pay. The catch consists, besides the above-mentioned 

 species, of one Ufeiis satyricus and one Scopelosoma devia, both, I sup- 

 pose, hibernated, though both are fine specimens, particularly devia. The 

 following night a visit to the same sallows results in the same species, and 

 in addition, two specimens of an undescribed Mamestra, Xylina Georgii 

 (i) and Tachnobia salicarum (i). T. pacifica is decidedly on the increase, 

 and what a variable species it is, too ! To-night Litholomia napcea is 

 I 



