LIST OF LKPIDOPTKRA PECUIJAR TO THE BRITISH ISLANDS. 187 



Dysghortsta suspecta ab. nigrescens, Tutt. — An extreme melanic 

 form, blackish-red, almost iinicolorous. D. ab. rufa, Tutt. — Unicolor- 

 ous bright red. 



D. FissiPUNCTA AB. variegata, Tutt. — A rare variegated form 

 occasionally taken in Kent with the type. D. ab. nigrescens, Tutt. — 

 A rare melanochroic form of the species somewhat widely distributed. 



Orthosia lota ab. pallida, Tutt. — Whitish-grey form. 0. ab. 

 suFFusA, Tutt. — ^A melanic form only recorded as yet from Sligo. 0. ab. 

 rufa, Tutt. — A red form of the species widely distributed with the 

 type. 



0. macilenta ab. straminea, Tutt. — A pale straw-coloured form 

 occasionally taken with the redder type. 



Anchocelis pistacina ab. brunnea, Tutt.— An extreme brown 

 form, sometimes unicolorous. 



A. LUNOSA ab. obsoleta, Tutt. — Pale reddish-ocbreous form without 

 pale nervures. A. ab. brunnea, Tutt. — A dark red-brown form with 

 pale nervures. 



A. LiTURA VAR. (et AB.) RUFA, TuTT. — -The dark purplish coloration 

 of the fore wings of the northern type is in this form bright reddish- 

 brown in colour. 



Dasycampa rubiginea ab. unicolor, Tutt. — Unicolorous reddish- 

 brown. 



Hoporina croceago ab. (et VAR.) lateritia, Raynor. — Dull red- 

 brown, very local form. 



Tiliacea citrago ab. (et VAR.) AURANTiA, TuTT.^ — Gi'ound colour 

 orange-yellow. 



Mellinia gilvago ab. (et VAR.) SUFFUSA, TuTT. — A soiiiewhat melanic 

 form much sufi'used in the middle of wings. 



Plastenis retusa ab. gracilis, Haw. — A red-brown form occurring 

 with the type. 



Calymnia trapezina ab. (et VAR.) RUFA, TuTT. — Deep red, some- 

 times dusted with black scales. C. ab. nigra, Tutt. — A rare aberra- 

 tion deep blackish-grey in colour. 



DiANTHCECIA CARPOPHAGA AB. (eT VAR.) PALLIDA, TuTT. A white form 



confined to chalk districts. 



D. conspersa VAR. ocHREA, Gregson. — The ordinary white marks 

 ochreous; replaces the type in Orkneys, Shetland, Cornwall and 

 Devon. D. var. oBLiTERiE, RoBSON (hethlandica, Stdgr.). — The 

 extreme dark Shetland form. 



D. c.EsiA VAR. MANANi, Gregson. — A suffused race peculiar to the 

 Isle of Man and Irish coast. 



PoLiA CHI AB. (et VAR.) oLivACEA, Stephs. — Green-grey form peculiar 

 to the north of England and southern Scotland. P. ab. (et var.) 

 SUFFUSA, Robson. — Suffused form peculiar to west Yorkshire, P. ab. 

 (et var.) NIGRESCENS, TuTT. — An extreme melanic form only recorded 

 from the Huddersfield district. 



P. x.\NTH0MiSTA VAR. STATicEs, Gregson. — A Very marked race 

 from Cornwall and the Isle of Man. 



Cleoceris viminalis ab. (et var.) obscura, Stdgr., and ab. unicolor, 

 Tutt. — Very marked melanic race from the northern counties of 

 England. 



Epunda lutulenta var. albidilinea, Tutt. — A race confined to the 

 Orkney Islands. 



