146 ' [December, 



The remarks on the last two species are taken from Sorbagen's 

 Kleinschmetterlinge der Mark Brandenburg, p. 301. The same writer, 

 also, quoting Hinneberg, says of salaciella that it flies in dry spots, 

 not uncommonly, round Potsdam among Achillea, and adds, that it 

 occurs singly from v to vii, in dry fir and birchwoods, concealing itself 

 by day in the grass, and only showing itself towards evening. And 

 of O. reliquella, which Dr. Wocke considers to be merely a variety of 

 salaciella, he states that it occurs among aspens. 



13, Cheyne Eow, Chelsea, S.W. : 

 October 15th, 1888. 



RETINIA POSTICANA, ZETT., A NEW" BEITISH TOBTRIX. 

 BY W. WARREN, M.A., F.E.S. 



The first week in June I captured, among young Scotch firs near 

 Cambridge, a pair of what, though I had neither seen the species, or 

 heard of its occurrence, in that neighbourhood, I too hastily assumed 

 to be turionella, L. Being smaller and duller in colour, I did not 

 trouble about more at the time, merely making a mental note to look 

 for the larvae next spring. But lately, when I was placing a freshly- 

 bred turionella in my series, and comparing them with the above two 

 caught specimens, I became aware that these latter were altogether 

 different, and on further examination they proved to be H. postieana, 

 Zett., Ins. Lap., p. 982. They are, as far as I can see, identical with 

 our so-called Scotch duplana, which Mr. Barrett has hitherto con- 

 sidered, and still considers, to be a dwarfed, dark form of turionella, 

 L. In the general collection of the British Museum there are six 

 specimens of R. duplana, Hb., all of them from Germany ; the first 

 four from the late Herrich-Schaffer, the last two from Dr. Stau- 

 dinger. There is no example of postieana, Zett. ; but a poor speci- 

 men of the Scotch insect is to be seen in Stephens' Cabinet. The 

 species was originally taken in Inverness-shire, by Mr. Bouchard ; 

 two years ago it was met with in good condition by Mr. A. H. Jones, 

 near Bannoch, and this season again by Mr. T. W. Salvage. 



For comparison, I give a brief description of the true duplana, 

 Hb., and the present species : — ■ 



Duplana, Hb., is distinguished by its oblique hind-margin, and, consequently, 

 more prominent and sharper apex ; its grey thorax (the head only being rusty) ; 

 and the coalition of its transverse lines into four more or less evident fascia?. 



