Description
The wingspan is 32–38 mm. Warren (1914) states ''R. multangula'' Hbn. Forewing greyish fuscous; the cell, the base of claviform stigma, and a streak from its tip to outer fine blackish; termen darker, with the submarginal line indistinct; hindwing sub- brownish grey. The male is paler and smaller, with hindwing whiter. — ab. ''subrectangula'' Stgr. 'Chersotis rectangula'' (Denis & Schiffermüller, 1775) ''C. r. subrectangula'' (Staudinger, 1871) (= ''rectanrectangula'' Boisd. part) is merely a darker form; ab. ''dissoluta'' Stgr. (lOh) is greyer and paler, the dark markings by contrast more conspicuous. The species occurs throughout S. Europe, in Asia Minor, Armenia, Persia,Turkestan, Tibet and Amurland.Larva earthbrown; dorsal line white with conspicuous black edges; subdorsal fines dull, pale, with an elongate black spot on each segment; lateral lines whitish; spiracles black;thoracic shield brown with 3 white lines ; head blackish brown with two dark streaks ; said to feed on Galium. Warren, W. in Seitz, A. Ed., 1914 ''Die Großschmetterlinge der Erde'', Verlag Alfred Kernen, Stuttgart Band 3: Abt. 1, Die Großschmetterlinge des palaearktischen Faunengebietes, Die palaearktischen eulenartigen Nachtfalter, 1914Subspecies
There are three recognised subspecies: *''Chersotis multangula multangula'' *''Chersotis multangula subdissoluta'' (Turkey, Western Turkmenistan, Armenia, the Caucasus, Northern Iran, Syria and Lebanon) *''Chersotis multangula andreae'' (Pyrenees, Morocco)Biology
The moth flies from June to August depending on the location. The larvae feed on ''References
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