Insects. 2583 



a name might be changed with advantage if it gave a wrong idea of the food of an 

 insect. Thus, he would substitute Rosana for Quercana if an insect so named were 

 found to feed on the rose and not on the oak. 



Mr. Waterhouse thought uniform terminations of names not important, and there 

 was no rule laid down for them, but as their use in certain groups had become com- 

 mon it might be as well to continue the practice. He also thought that the rule of 

 priority ought to be observed, but he would except cases of manifest orthographical 

 error, and such names as would give a wrong idea of the geography of species. 



Mr. Douglas thought that the adoption of uniform terminations to specific names 

 in a portion of one order was unphilosophical and puerile. With reference to the ob- 

 jections of Messrs. Westwood and Waterhouse, that a name conveying a wrong idea 

 of habit or country should be altered, he did not see much force in them, because the 

 student of Natural History — the only person to whom such a thing could be deemed 

 to be of importance — would always look farther than the name ; and as every entomo- 

 logist might have an objection to raise if these were allowed, none whatever should 

 be admitted, but the law of priority held inviolable. 



Mr. Westwood stated, with reference to an inquiry in the ' Zoologist ' as to the 

 best pins for Micro-Lepidoptera, that Senator Van Heyden used very fine silver wire, 

 the chief advantage of which was its non-liability to corrosion. 



A conversation then arose on the subject of setting Micro-Lepidoptera flat, in the 

 course of which Mr. Westwood said the flat was preferable to the deflected method 

 in other orders beside Lepidoptera, and that Mr. Shuckard had long since shown 

 how much better the characters of the wings of Hymenoptera were exhibited if they 

 were in a horizontal position. — J. W. D. 



Occurrence of Colias Hyale, 8rc at Dover. — It may be interesting to all who put 

 faith in the septennial appearance of Colias Hyale, to know that between the begin- 

 ning and ninth of the present month I have captured eight specimens at Dover, where 

 I have been collecting for the last few weeks ; I have also taken about eighteen spe- 

 cimens of Colias Edusa in the same locality. It is singular that C. Hyale, which 

 generally appears before C. Edusa, did not occur until some days after I had met with 

 the latter. I searched most constantly for Daplidice and Lathonia, but did not 

 see a single specimen of either. I have also captured there, with other things of less 

 moment, Dianthaecia carpophaga, Aspilates gilvaria, Emmelesia bifasciata, Ptycho- 

 poda ornata, Carpocapsa Leplastriana, Eupoecilia sodaliana, Cochylis rupicola, Lozo- 

 pera alternana, Lozopera Dubrisana, Lozopera Francillana, Depressaria propiuquella, 

 Depressaria Alstrcemeriana, Oncocera carnella, and also an Eupithecia, which appears 

 to be different from any of our recorded species. My friend, Mr. S. Stevens, captured 

 a single specimen of Spaelotis cataleuca, at Dover, at the latter end of August. This 

 I believe to be a new locality for this insect. Since my return home, I have had two 

 larvae of Acherontia Atropos brought me, one of which has since changed. — F. Grant; 

 Putney, September 15, 1849. 



Occurrence of Colias Hyale at Lewes. — I beg to say that I had the pleasure of cap- 

 turing, during the early part of this month, two fine specimens of that beautiful insect 

 Colias Hyale. The first, a male, I caught on the 4th instant, about two o'clock in the 



