102 THE ENTOMOLOGIST. 



There is a good deal of confusion in connection with this 

 aberration. The only author who purports to figure it is West- 

 wood, but his figure does not agree with the description of either 

 himself or Curtis, inasmuch as there is no indication in it of the 

 " waved fuscous striga " referred to. Then, again, there was a 

 specimen which some years ago was in the collection of the late 

 Dr. Mason, and which from him passed to the late J. A. Clark ; 

 this specimen was supposed to be Curtis's type of ab. stoninus, 

 and it is so referred to in the ' Entomologist's Eecord,' xxii, p. 21. 



It is the one which I have figured, PI. I, fig. 4, as the type 

 of ab. sagittata, and it is now in the possession, as before stated, 

 of Prof. Image, for whom it was secured at Clark's sale. Now 

 as this specimen is not stoninus at all, and as, moreover, Curtis's 

 * Guide ' (both editions), in w^hich he made a mark against those 

 forms or species which he possessed, shows that he did not at 

 the time the 'Guide' was written — 1829 and 1841 — possess a 

 type of ab. stoninus, and as Mr. J. A. Kershaw, the Director of 

 the National Museum at Melbourne, assures me there is no type 

 of ab. stoninus in the collection now, and moreover there is no 

 pinhole even above the name, obviously Curtis never possessed 

 a type. 



ab. stoninus occurs regularly but rarely in the New Forest. 

 Mr. South has three or four examples from there ; Mr. Bright 

 also has several. In September, 1916, I took the specimen 

 figured, at Brockenhurst, but it is the only one I have seen out 

 of four or five hundred examples of the species examined. 



Division 2. 



Dilutana Group. 



In this group the ground-colour is ashy coloured, with or 

 without reddish-brown cloudings. 



ab. dilutana, Hb. 



Synonymy. — Ab. dilutana, Hb. Tort, ii, fig. 6 (1797) ; Haworth, 

 Lap. Britt. p. 406 (1811) ; Curtis, Brit. Bnt. xxix (1824), dilutanus ; 

 Curtis, Guide (1829), p. 174, dilutanus ; Stephens, Cat. ii, p. 184, 

 No. 7037 (1829), dihUanus ; Treitske, Schmet. von Europa, viii, p. 22 

 (1830) ; Rennie, Conspectus, p. 175 (1832), dilutanus ; Stephens, 

 Haust. iv, p. 146 (1834), dilutanus ; Westwood, Brit. Moths, ii, pi. 

 xci, fig. 13, p. 152 (1845), figured as ab. lathamianus ; Duponchel, Hist. 

 Nat. Lep. ix, p. 48, and pi. ccxxxvii, fig. 7 (1834) ; Staudinger, Cat. 

 Lep. d'Eur. p. 22 (1861) ; Sepp, Ned. Ins. 2nd series, vol. i, p. 147, pi. 

 xxxiv, fig. 17 (1862) ; Staudinger, Cat. Lep. Eur. p. 50 (1871) ; Frey, 

 Lep. Schweiz. p. 72 (1880) ; Lampa, Tidsk. vi, p. 31 (1885) ; Auri- 

 villius, Nord. Fjar. p. 80, fig. 15 (1890), dihttafius ; Favre, Mac. Lep. 

 Valais, p. 78 (1899) ; Staudinger, Cat. Pal. Lep. i, p. 361 (1901) ; 

 Eebel. Lep. Balk, i, p. 271 (1903), ii, p. 286 (1904) ; Hofmann, 

 Schmett. Eur. ii, p. 124 (1908). 



