110 UOCTUin.E. 



3689. Acronycta cuspis. 



Acronycta cuspis, Hiibn. Noct. f. 504 (1818); Treit. Eur. Schmett. v. 1, 

 p. 32 (1825) ; Dup. Lep. Fr., Suppl. in. p. 150, pi. 15. f. 1 ; Fir. Neue 

 Beitr. i. pi. 57 ; Boiscl. Icones, pi. 71. f. 3 ; Caland, Tijcl. v. Ent. xxxix. 

 p. 103, pi. 8. f. 4 ; Staud. Cat. Lep. pal. p. 132. 



d . Head and thorax white mixed with fuscous ; 2ud joint of palpi 

 with black band ; frons black at sides ; antenna} with the basal joint 

 black behind; shoulders and outer edges of patagiawith black streaks; 

 patagia with black medial streaks ; tibiae streaked with black, the 

 tarsi slightly ringed with black ; abdomen white irrorated with black 

 and dorsally tinged with brown at base. Fore wing bluish white 

 irrorated with fuscous ; subbasal line represented by double black 

 striae from costa : a strong black streak in submedian fold from 

 base to antemedial Hue, the basal half thicker ; antemedial line 

 double, oblique, waved, bent inwards to inner margin ; orbicular 

 defined by black, rather oblique elliptical, connected by a short 

 black streak with the reniform, which is defined by black on inner 

 side, ill-defined on outer ; an irregular oblique black bar from costa 

 to reniform and slight oblique sinuous line from lower angle of cell 

 to inner margin at antemedial line ; postmedial line black defined 

 by white on inner side, double at costa, bent outwards below costa, 

 then minutely waved, excurved to vein 4, then incurved, crossed by 

 a slight black streak in discal fold and strong streak in submedian 

 fold, the latter extending to near termen, the area beyond it very 

 slightly darker to the hardly traceable waved whitish subterminal 

 line ; a terminal series of black points with strong black streaks 

 from them intersecting the white cilia. Hind wing white slightly 

 tinned with brown at base, traces of a curved postmedial line ; a 

 diffused brownish subterminal band ; a terminal series of dark 

 points with slight streaks from them intersecting the cilia; the 

 underside white, the costal area irrorated with a few dark scales, a 

 dark discoidal spot, a postmedial line waved and excurved to vein 5, 

 then oblique, and terminal series of small dark lunules. 



5 . Hind wing more suffused with brown. 



Ab. 1. Fore wing without the bluish tinge, suffused with pale 

 brown. 



Ab. 2. Fore wing almost wholly suffused with black-brown. 



Hah. France ; Germany, Zeller, Frey, and Leech Colls.; Austria, 

 Leech Coll.; Hungary ; Switzerland; Armenia; W. Turkestan, 

 Issyk Kul; E. Turkestan, Hi; E. Siberia, Amurland, Ussuri. 

 Exp. 40-45 millim. 



Larva. Kirby, Butt. & Moths Eur. p. 158; Plffm. Eaup. p. 75, pi. 21. 

 f. 28. . 



Resembles that of A. psi, but has a long thick tuft of black hair 



on 4th somite instead of the tubercle. Food-plant : Alder. 8-9. 



