176 THE CANADIAN ENTOMOLOGIST. 



clypeal point on the pupa permitted it to partly bore out of the stem and 

 thus release the imago, which had no homologous point, but an unarmed 

 head. In some borers the larva prepared a little door which the imago 

 easily pushed open, the pupa remaining inactive within its prison ; while 

 in others, closely related, the pupa did the work by forcing itself partly 

 out. There could be no question of the digoneutic nature of Arsame 

 ohliquata at Washington, and none as to its variability as illustrated by 

 his specimens, vtilnifica and melanopyga, being doubtless but forms of it. 



Some specimens of Cautharis Nuttali were exhibited by Prof. Riley, 

 it being stated that in Dakota they were accused of devouring the growing 

 wheat. 



The meeting then adjourned, when the members spent some time in 

 informal conversation and in examining the microscopic specimens illus- 

 trating Prof Osborn's paper. 



OBITUARY NOTICES. 



PROF. P. C. ZELLER. 



The death of this veteran lepidopterist has occurred, long expected 

 and deeply regretted. Seven years younger than the century itself. Prof. 

 Zeller was born on the 9th of April, 1808. Professor in the Prussian Real 

 Schule at Meseritz, he was finally retired on a Government pension, and 

 has lived since 1870 near Stettin, continuing his entomological labors in 

 connection with the Entomological Society of Stettin. Commencing to 

 write at an early age, Prof Zeller has grown up with the modern science 

 of lepidopterology. Plis earhest studies were upon the collections of Frau 

 Lienig and the material brought by himself from a southern trip, which 

 extended as far as Sicily. Zeller discovered the curious diurnal Rhodocera 

 Farinosa, besides describing certain Lycceiiidce, but his principal attention 

 was given to the small moths of the families Pyralidce to Tifieidce, the 

 modern classification of which he may be said to have founded. He first 

 cleared up the confusion as to the genera of P/iycidce, and by using natural 

 characters, chiefly secondary sexual ones, he succeeded in disentangling 

 our minds with regard to the order of nature in this obscure and neglected 

 field of inquiry. His species and genera are very numerous and almost 

 always valid. It is a misfortune^ that his valuable monograph on the 



