THE VARIATION OF SARROTHRIPUS REVAYANA, SCOPOLI. 105 



" Alae anticae latae fusco cinerese fere viridatae. Ante medium 

 puncta duo approximata fusca, tunc punctum centrale solitarium 

 atrum versus marginem posticum puncta duo sine tria approxi- 

 mata fusca. Margo ipse strigapunctorum fuscorum. Alseposticas 

 cinerese. 



'* Habitat in Anglia." 



Specimens that agree with Fabricius's description of ab. 

 ilicana are rather infrequent with us, although the original 

 example came from England. I have half a dozen, all from the 

 New Forest. 



ab. notata, n. ab. (PI. I, fig. 7.) 



Synonymy. — Sepp, Ned. Ins. 2nd series, vol. i, p. 147, and pi. xxxiv,^ 

 fig. 18 (1862). 



DescrijJtion. — This aberration is similar in all respects to 

 ab. ilicana, Fab., except that the ground-colour of the superiors 

 is much lighter in tint, i.e. a light silvery, ashy-grey. 



ab. notata is much more abundant in Britain than ab. ilicana ,- 

 I have a long series from the New Forest. 



ab. nigripunctata, n. ab. (PI. I, fig. 8.) 



Synonymy. — Westwood, Brit. Moths, ii, pi. xci, fig. 14, and p. 152, 

 ilicanus (1845). 



Description. — In this aberration the ground-colour of the 

 superiors is reddish-brown ; the discal spot, which is black, 

 shows prominently against the red-brown ground-colour. There 

 are waved slate-coloured lines crossing the superiors on each 

 side of the discal spot; the head and thorax are slate-coloured. 



ab. nigripunctata is distinctly not a common form ; all the 

 examples I possess or have seen come from the New Forest. 

 I possess eight specimens. 



ab. rufescens, n. ab. (PI. I, fig. 9.) 



Description. — Similar in all respects to the last except that 

 the central spot, which is prominent and large in ab. nigri- 

 punctata, is either missing or very small and indistinct. 



ab. mfescens occurs with ab. nigripunctata in the New JForest, 

 and in about the same numbers as that form. I have not seen 

 it from elsewhere. 



ab. hrunnescens, n. ab. (PI. I, fig. 10.) 



Description. — The superiors, thorax, head, palpi and antennae 

 are uniform dull brown, with indistinct fuscous transverse lines ; 

 the dark central spot is only indicated by a few red-brown scales. 



I have only seen this aberration from the New Forest ; it 

 is rare even there. I have four examples which answer to the 

 description. 



