NOTES AND OBSERVATIONS. 97 



depends upon its accuracy ; but as we are obliged to advert to the fact, 

 we may further remark that one or two misleading entries in a list 

 considerably reduce its value, even if they do not cause the whole com- 

 pilation to be regarded as worthless. — Ed.] 



Migration of Anosia plexippus.- — At a meeting of the Cambridge 

 Entomological Club (Mass., U.S.A.), the President, referring to a 

 statement made in a recent work on British Butterflies, that there 

 was not a " scintilla of actual evidence" to support the assertion that 

 Anosia plepdppus migrates southward in the autumn in North America, 

 drew attention to the fact that three specific cases are noted by 

 Biley in his third 'Missouri Beport,' p. 151; and five others are 

 reported in Scudder's ' Butterflies of the Eastern United States,' 

 pp. 729, 730, 1083.— (' Psyche ' for March.) 



Naphthaline. — According to the experience of Mr. Eustace B. 

 Bankes, as noted in the March number of the Ent. Mo. Mag., a 

 moderate quantity of naphthaline is a useful thing to keep in cabinet 

 drawers ; but when used too liberally injury to the specimens is likely 

 to ensue. 



Pin-blacking. — I find that the preliminary processes mentioned in 

 my former paper on this subject (Ent. Mo. Mag. vol. v., s.s., p. 252), 

 namely, the soda-soak and rinse and the immersion in diluted nitric 

 acid, are unnecessary, and that all that is required is to put the pins 

 ("white") as purchased into a test-tube of suitable size, cover them 

 with hydrosulphuric acid for a couple of minutes, and then pour off 

 the liquid, and scatter the pins over a sheet of paper to dry. N.B. — 

 "When first turned out the pins are of a golden colour, but soon 

 blacken on exposure to light and air. Pins prepared by this simple 

 process possess great advantages over other black pins. Their surfaces 

 are not liable to crack ; their blackness is duller, and becomes intensi- 

 fied by age ; they are less liable to the action of the vapour of butyric 

 acid emitted by rancid grease ; and, above all, the metal, particularly 

 of the points, is considerably hardened. Surely for the attainment of 

 so desirable a result the inconvenience of a few minutes' stink incurred 

 in laying in a stock of pins of greatly improved quality, for a season 

 or for several seasons, is hardly worth consideration. — H. G. Knaggs ; 

 Folkestone, March, 1898. 



Gynandromorphous Specimen of Adop^ea thaumas, Hufn. — The 

 reference to Leech's Butt. China, ante, p. 52, line 1, should have been 

 " (p. 593, pi. xl., fig. 7, male)," and not as printed. 



Spring Lepidoptera. — On March 12th last I found a specimen of 

 Panolis piniperda at rest on a tree-trunk at Esher, and my friend Mr. B. 

 Prest took a male example of Amphidasys striataria (prodromaria) in 

 Kingston. — W. J. Lucas ; 21, Knights Park, Kingston-on-Thames. 



T^niocampa munda in the Autumn. — Mr. John F. Churchill (Ent. 

 Mo. Mag. s s. ix. p. 65) records the capture of a small example of 

 T. munda at ivy last autumn. This seems to be such an exceptional 

 occurrence that we venture to ask if any of our readers have ever met 

 with this species, or any other of the genus, in the autumn. 



