ZOOLOGY, 



THE LEPIDOPTEKA OF THE SHETLAND ISLANDS. 

 By AUGUST HOFFMANN. 



{Co?iduded from page 179.) 



37. Cidaria Montanata, var. Shetlandica J.W. (Melanippe 

 montanata var. Shetlandica J. W.) Stgr. andWk. Lap.; Wk. Norv. 

 Alp. ; Mosch. Lab. ; Frey Alp. ; Stdfs. Sil. Mont. ; H. Here. Mont. 



Of this form, called by Mr. Jenner Weir var. Shetlandica, I 

 have seen 4 examples. It is figured in the Entomologist, 1883, 

 pi. 4, figs, 10, n. There occurs in it a darkening of the white 

 ground-colour of the anterior wings, due to suffusion with brownish- 

 yellow ; but the white remains as a border to the sharply defined 

 middle area, which is broken up into bands : and there remain 

 also the wavy white lines : the insects thus have a very variegated 

 bright aspect. It is curious that in the Shetland Islands the 

 colours and marking of this species are more vivid and more dis- 

 tinct ; while the Northern specimens of the same form show a 

 tendency in the markings to disappear, and in the colours to be- 

 come pale (var. Lapponica Stgr.). Montanata is said to appear 

 in the Shetland Islands only in the form described above. The 

 specimens are markedly smaller than ours (Hanover). Time of 

 flight is July. 



38. Cidaria Csesiata SV. (Larentia Cwsiata SV.) Stgr. Isl. ; 

 Stgr. and Wk. Lap. ; Wk. Norv. Alp. ; Mosch. Labr. ; Sch. Fen. ; 

 Frey Alp. ; Stdfs. Sil. Mont. ; H. Here. Mont. 



Unfortunately, I could not examine any specimens of this species 

 from the Shetland Islands. Since Mr. Jenner Weir does not es- 

 pecially mention this species, I conclude that the Shetland speci- 

 mens do not differ in any way from those of the rest of Scotland, 

 and that therefore probably the species will also appear there in 

 all transitions to the aberr. annosata Zett. and aberr. glaciata 

 Germ. Time of flight is July. 



