THE VARIATION OF SARROTHRIPUS REVAYANA, SCOPOLI. 123 



and in a few of them is developed into a central fascia which 

 entirely crosses them. 



ab. afzeliana, Swederus. 



Synonymy. — Afzeliana, Swederus, Ken. Vet. Ack. nya Handl. tome 

 viii, p. 276 (1787) ; Gmelin, Lima. Syst. Nat. Edn. xiii, p. 2518, No. 

 1531 (1788) ; Haworth, Brit. Lep. p. 407 (1811) ; Cm-tis, Brit. Ent. 

 p. 29, afzelianus (1824); Curtis, Guide, p. 174, afzelianus (L829) ; 

 Stephens, Cat. ii, p. 184, No. 7038, afzelianus (1829) ; Stephens, Haust. 

 iv, p. 147, afzelianus (1834) ; Westwood, Brit. Moths, ii, pi. xci, fig. 

 15, and p. 152, afzelianus (1845) ; Wilkinson, Brit. Tort. pi. i, fig. 1, 

 revayana (1859). 



Original description. — " Phalana {Tort.) afzeliana, Swederus, 

 * K. Vet. Ack. nya Handl.,' tome viii, p. 276 (1787). 



" Alls anticis glaucentibiis basi macnlaque marginal! nigro- 

 fuscis puncto insuper centrali aberrimo. 



" Hab. in Anglia : Mus. D. Francillon. 



" Descn. : Corpus facie Pb. Tort. ilica7ia, sed paulo minus. 

 Antennae, palpi, pedesque fusca. Alse anticse glaucescentes, 

 subnitidse. Obsoletissimse nebulosse, basi nigrofuscse macula 

 ad medium marginis exterioris magna subtrigona obsoleta 

 nigrofusca et ad latus posticum hujus maculae puncto centrali 

 aterrimo notatse. 



" Alae posticae, argenteo cinerese." 



The type-specimen should be in the Francillon Collection in 

 the Hope Museum at Oxford, but the authorities of that institu- 

 tion inform me it is not. Specimens of ab. afzeliana are not 

 infrequent in the New Forest, and perhaps in most of the 

 localities in which S. revayana is found. Certainly the most 

 typical example of this form I possess came from Perth. 



ab. variegata, n. ab. (PI. I, fig. 11.) 



Synonyyny. — Barrett, Brit. Lep. vi, pl. ccli, fig. 3c (1900) ; South, 

 Brit. Moths, i, p. 147, fig. 23, No. 6, afzelianus (1907). 



Description. — This aberration resembles the last except that 

 the ground-colour is testaceous brown instead of grey ; the light 

 area of the superiors is also more blotched with dark fuscous. 



This form is pretty common in all localities in which I have 

 collected *S'. revayana, or from which I have received it, including 

 the New Forest, South Devon, Isle of Wight, Perth, Tilgate 

 Forest, West Wickham, and Epping Forest. 



ab. adusta, n. ab. (PI. I, fig. 12.) 



Description. — As ab. variegata, but with ground-colour of 

 the superiors, a dark dull-brownish fuscus, and with the costal 

 blotch and markings showing less distinctly owing to the darker 

 ground-colour. 



