tefhroclystis] HYDRIOMENIDAE 187 



.'i. T. campanulata, IIS. 21-22 mm. Abdomen with black 

 lateral subbasal spots. Forewings brown, with obscure darker 

 striae ; posterior edge of median band blackish-dotted, curved 

 or bent above middle ; subtcrminal line hardly paler ; a black 

 discal mark. Hindwiugs light grey, striated with darker; a 

 dark grey discal dot. 



Kent and I. of Wight to Hereford, local ; Belgium, Germany ; 

 6, 7. Larva rather stout, light ochreous-brown ; dorsal line 

 dark brown or black, marked with a series of dark brown or 

 black lozenges ; subdorsal and spiracnlar darker brown or 

 blackish ; head brown or black : on seeds of Campanula trache- 

 lium ; 8, 9. 



4. T. minutata, Gn. 19-21 mm. Differs from T. absinthiata 

 as follows: forewings more elongate, not reddish-tinged, striae 

 more distinct, more sharply angulated, discal dot less elongate ; 

 hiiidwings paler and more ochreous-tinged. 



Britain to the Orkneys, Ireland, common ; Holland, Germany ; 

 (i, 7. Larva rather stout, purplish-pink, pale ochreous, greenish, 

 whitish, or blackish, white-dotted ; a dorsal series of dark V- 

 shaped marks on 5-9 ; dorsal and spiracular lines pale ; head pale 

 brown, darker-marked : on flowers of Erica, Calluna, Scabiosa ; 

 8-10. It is very questionable whether this is anything more 

 than a heath-frequenting form of T. absinthiata. 



5. T. absinthiata, CI. 22-24 mm. Abdomen with interrupted 

 black subbasal ring. Forewings brown, reddish-tinged, with 

 faint obtusely angulated striae, blackish on costa, edges of 

 median band forming costal spots ; subterminal line whitish, 

 interrupted, forming a tornal spot ; a black discal mark. Hind- 

 wings grey, with faint darker striae ; a dark grey discal dot; a 

 whitish tornal dot. 



Britain to Ross, Ireland, common; N. and C. Europe; 6, 7. 

 Larva rather stout, green, whitish, or ochreous, white-dotted ; a 

 dorsal series of dark V-shapod marks, most distinct on 5-9, pale- 

 edged ; spiracular line pale : on flowers of Artemisia, Achillea, 

 Senecio, etc. ; 8-10. 



G. T. assimilata, Gn. 18-21 mm. Differs from T. absinthiata 

 as follows : forewings with striae more distinct, discal mark 

 stronger, posteriorly whitish-edged, veins on fourth fascia shortly 

 black-marked, in both wings tornal white spot more conspicuous, 

 cilia distinctly barred. 



Britain to Caledonian Canal, common ; France, Holland ; 5, 

 0, 8. Larva slender, yellowish-green, white-dotted ; dorsal line 

 darker or reddish-purple ; subdorsal darker, indistinct ; some- 



