262 NOCTITID^. 



Hah. Britain, Leech Coll, ; France ; GEEMANr, Zeller, Frey, 

 and Leech Colls. ; Atjstbia ; Hungaby ; Switzerland ; Italy ; 

 KussiA, IJrals ; W. Siberia, Altai. Ex2:>. 42-52 millim. 



Larva. Meyr. Brit. Lep. p. 52 ; Barrett, Lep. Brit. vi. p. 32, pi. 235. f. 3. 



(jreenish brown with darker markings forming a dorsal series of 

 diamond-shaped marks ; dorsal, subdorsal, lateral, and spiracular 

 lines pale yellow ; a series of oblique black streaks above subdorsal 

 line. Food-plants : Alder and Birch. 5-6. 



2415. Graptolitha ingrica. 



Xiflina co7iformis, Trr. Neue Beitr, pi. 41 (1833) nee Scliiff. 



Xylina ingrica, Herr.-Schaff. Eur. Scbmett. ii. p. 305, Noct. f. 507 (1845); 



Staud. Cat. Lep. pal. p. 210. 

 Xylina cinerosa, Guen. Noct. ii. p. 118 (1852). 

 Xylina grisea, Grses. Berl. ent. Zeit. 1888, p. 360. 

 Xylina obscura, Carad. Iris, ix. p. 41 (1896). 

 Xylina basidiluta, Strand, Arch. Naturr. Christian, sxv. 9, p. 14 (1903). 



Head and thorax dark brown more or less mixed with grey ; 

 palpi with lateral black streaks ; frons with black bar ; tegulse 

 with black line near tips ; patagia with some black scales on edges ; 

 tibiae streaked with black, the tarsi with pale rings ; abdomen 

 grey-brown tinged with purple-red. Fore wing silvery grey more 

 or less completely suffused with dark brown, sometimes with a 

 slight yellowish tinge ; a whitish patch on base of costal area and 

 some purplish red on base of inner margin ; a sinuous black streak 

 below base of cell ; subbasal line indistinct, double, waved, from 

 costa to submedian fold ; antemedial line double, waved, the inner 

 line indistinct ; claviform well developed, defined by black and 

 filled in with grey, rarely with reddish, a black streak in submedian 

 fold from it to the postmedial line ; orbicular and reniform large, 

 defined by black, the former filled in with grey, oblique elliptical, 

 the latter rather quadrate, with reddish centre and grey annulus 

 defined below by a slightly curved black streak ; postmedial line 

 defined by grey on outer side, dentate, bent outwards below costa, 

 excurved to vein 4, then incurved to lower edge of reniform, some 

 white points beyond it on costa ; subterminal line grey defined by 

 brown on inner side and by slight dentate marks at middle and 

 submedian fold, angled outwards at vein 7 and slightly dentate at 

 veins 4, 3 ; a terminal series of slight black lunules. Hind wing 

 pale more or less strongly tinged with brown ; cilia whitish ; the 

 underside whitish, the costal area tinged with rufous and the 

 costal and terminal areas irrorated with brown, a small discoidal 

 lunule and sinuous postmedial line. 



Ab. 1. grisea. Darker. — E. Siberia. 



Ab. 2. basidiluta. Fore wing with the basal area paler. — 

 Norway, St. Petersburg. 



Bab. France, Alps ; Germany ; Austria, Leech Coll. ; Hungary; 

 Switzerland, Frey Coll. ; Norway, Odalen, Frey Coll. ; Russia, 

 Livonia, Zeller and Frey Colls., Esthonia, Frey Coll., Kurland, Leech 

 Coll., St. Petersburg, Zeller and Frey Colls. ; Eumelia ; Xamtschatka ; 



