392 ENTOMOLOGICAL NEWS. [Oct., ’08 
species was a southern one and that it is unable to maintain 
itself in a northern latitude. The periodical occurrence of the 
larva he explained by the supposition that the impregnated 
females migrated northwardly and laid eggs which developed 
mature larvae. The pupae, however, are unable to survive the 
winters and consequently another brood would depend on an- 
other chance wanderer, ‘ 
This supposition lacked the support of the other members 
who believed that if the species were truly a migrant, it would 
not continually pass over eertain regions harboring its food 
plant immediately to the south of Fort Lee, where the insect 
had been often searched for but never found. It would be more 
reasonable to suppose that in the off years the species was re- 
duced almost to extinction by parasitism, and that it took sey- 
eral years to again multiply to noticeable numbers. 
Mr. Erhard showed specimens of Phlyctaenia profundalis 
Pack. (Lep.) and Eleodes grandicollis Mann. (Col.) taken 
alive at Newark, N. J., from celery imported from California 
and a number of living Conacephalids shipped with the same 
product from Florida. 
Joun A. GrossBeck, Secretary. 
A meeting of the Newark Entomological Society was held on 
April 12, with twenty-one members present, and Messrs. Chris. 
Roberts, of Connecticut; Henry Dietz, of Newark, and Chas. 
J. Martin, of Brooklyn, visitors. Dr. H. D. McCormick, of 
Little Falls, was elected a member. 
Mr. Roberts addressed the Society on how and where to 
collect aquatic Coleoptera. Of first importance is a strong- 
rimmed net, perfectly rigid, and capable of resisting a dense 
vegetation. Deep water harbors little beetle life, but water 
several inches in depth or less is exceedingly prolific, and in 
using the net it is best to begin as far out from the shore as the 
shallow water extends and work inward. It is a habit of the 
insects to dart away from the pursuer into deep water if the 
opposite method is followed. If a long bag is used the contents 
