66 THE ENTOMOLOGIST. 



lower down (8000 ft.), that I did not recognise it as belonging to 

 the genus when on the wing. 



3. Maritime melanism : Wollaston says that Chrysophanus 

 phloeas is darker and more suffused in Madeira (where it cannot 

 escape from the neighbourhood of tlie sea) than in England. 

 Aphodius plagiatus usually has red dashes on the elytra on the 

 Continent, but all those from Deal were perfectly dark, which 

 indeed is the prevalent tendency with British specimens of this 

 species (* The Variation of Species,' p. 61). 



4. Melanism apparently confined to one sex : a further 

 example of this is Parnassius apollo hesebolus, Nordm., which 

 Staudinger describes as " v. major, ^ albidior, 2 obscurior. 



5. The darkening is sometimes confined to the hind wings ; 

 examples are given in Vanessa, Nemeophila, and Callimorpha. 



6. The recent development of a melanic race of Amphidasys 

 in the manufacturing districts is well known, and from Mr. 

 Poi-ritt's remarks on Diurnea at Huddersfield, this seems to offer 

 a similar case. 



7. Northern melanic forms : it is an error, however, to suppose 

 that all northern forms have a tendency towards melanism. Dr. 

 F. Buchanan White, in an extremely interesting article (Ent. Mo. 

 Mag. 1876, 145), gives a number of species which are generally or 

 always " melanochroic " in Scotland, but also at the same time 

 enumerates many examples of Scotch " leucochroism," showing 

 that in a few species all the specimens are paler than in the south, 

 while in others there is a general tendency that way. In America, 

 Terias lisa is said to be paler in the north than in Florida. 



Erratum. — Page 4, line 2 from bottom, for " helice pallida " read 

 " hyale pallida.'' 



(To be continued.) 



A YEAR'S WORK IN PORTLAND. 



By Major Charles E. Partridge. 



(Concluded from p. 45.) 



Uropteryx samhucaria flitted about over the blackberry bloom 

 at night in great numbers. Venilia macularia, Selenia bilunaria, 

 Rumia luteolata, Boarmia repandata, B. gemmaria, Abraxas 

 grossulariata, Larentia didymata, Melanthia ocellata, M. galiata, 

 and M. Jiuctuata occurred everywhere. Odontop)era bideiitata, 

 Hibernia mpicapraria, Acidalia ochrearia, Asthena candidata, 

 Acidalia rusticata, Ligdia adustata, occurred very sparingly. 

 Acidalia degeneraria came freely to light, as also did A.remutaria, 

 A. aversata, and A. marginepunctata. Gnophos obscuraria swarmed 

 at the blossom of wild sage, and Larentia olivata and Anticlea 

 rubidata, though local, were easily obtained. Of Melanippe 



