134 THE CANADIAN ENTOMOLOGIST. 



one species, those having white on the wings the males, and Limata the 

 female. On page 228 of the same volume, Mr. Bean again refers to the 

 same subject, giving some additional evidence from observation of the 

 imagines, going to show the correctness of the position taken. Since that 

 time many have regarded the question as settled, though I find in the 

 Check List recently published by the Brooklyn Entomological Society, the 

 three names stand as three species, with Nigricans between Saundtrsii 

 and Lunata. 



The result of my rearing fully confirms all Mr. Bean claimed, as the 

 following will show. From the one brood of eggs deposited by a single 

 moth, form Lunata, Lunata, Saundei'sii and Edusa were obtained, and 

 the forms were hatched in the following order : Numbers i, 3, 9, 12 and 

 13 were Ltmata ; Nos. 2, 5, 6, 7 and 10 were Edusa ; Nos. 4, 8 and 11 

 were Saundersii. As an evidence of sex the frenulum v/as examined in 

 each specimen, and in all the Lunata it was double, but single in both the 

 other forms. 



This settles the question beyond any doubt, and reduces two of the 

 forms to sexual varieties. I have not the works containing the original 

 descriptions by me, and can not say for that reason which name has the 

 priority, but shall leave that question to some one who has access to 

 these works. 



Knowing this species to be a general feeder from having reared it on 

 maple and willow before, no effort was made to test its range of food 

 plants, but it was fed most of the time on plum leaves. 



ON A RECENT SPECULATION AS TO RANK IN INSECTA. 



BY A. R. GROTE. 



The reader will have noticed, in the June number of the Canadian 

 Entomologist, a paper on the " Physiological Arrangement of Insects." 

 The author there places the Otihoptera first in this list, owing to the 

 presence of auditory organs and well developed eyes. The " arrange- 

 ment" which follows is exceedingly "mixed," but the object of the 

 present remarks is to point out that the author mistakes when he considers 

 the presence of sense-organs as the crucial test of rank. And for this 



