47.2 Spilomelinae

1	Forewing uniformly white, only with narrow ochreous costal streak *Palpita vitrealis*
	27.0-33.0mm. July to late October.
-	Forewing white with broad brown band extending along costa and termen; conspicuous white lunate discal stigma in costal band *Cydalima perspectalis*
	50.0mm. Mid June to September.

2 (1)	Forewing reddish ochreous, suffused dark reddish brown *Udea ferrugalis*
	18.0-22.0mm. Late May to mid November. Forewing with discal spot 8-shaped; cross-lines blackish. Hindwing pale grey; postmedian line and two minute discal dots darker.
-	Forewing whitish yellow to dark brownish grey, not reddish ochreous 3
	18.0-37.0mm. Male of Ostrinia nubilalis with forewing often heavily suffused reddish brown, but pale yellowish ground colour visible and distinctly larger than Udea ferrugalis: 26.0-31.0mm.

3 (2)	Forewing underside with distinct blackish costal spots in apical half 4

-	Forewing underside otherwise 5


4 (3)	Forewing predominantly grey, somewhat brownish *U. prunalis*
	18.0-27.0mm. Mid June to mid August. Forewing with cross-lines, orbicular and 8-shaped discal spot blackish grey. Hindwing dark bronish grey, apex darker; ill-defined postmedian line and two discal dots blackish brown.
-	Forewing yellowish brown with transverse lines, 21 - 28 mm *U. fulvalis*
	21.0-28.0mm. July. Forewing with cross-lines and stigmata grey, similar to U. prunalis. Hindwing brown, apex darker; often only with traces of darker postmedian line and small discal dot.

5 (4)	Forewing veins coloured brown; generally smaller species, 15.0-22.0mm. Hindwing with small dark discal spot and cloudy grey postmedian costal spot *Antigastra catalaunalis*
	August to October. Forewing pale yellow with veins and margins suffused ferruginous, this suffusion sometimes so heavy as to obscure pale ground-colour; cross-lines fine, faint, ferruginous. Hindwing yellowish white. Antenna about four-fifth length costa
-	Forewing coloured otherwise 6


6 (5)	Forewing with quadrate white spot in middle of disc *Udea olivalis*
	21.0-27.0mm. May to early August. Forewing dull greyish olive with white spots.
-	Forewing without quadrate white spot in middle of disc 7


7 (6)	Hindwing white with dark grey apical blotch *Udea lutealis*
	21.0-26.0mm. Late June to late August. Forewing pale whitish ochreous; the spots brown, outlined ochreous; cross-lines fine, brown. Hindwing with faint dark second cross-line.
-	Hindwing otherwise 8


8 (7)	Wings with grey cilia, contrasting with yellowish colour of wing; three stigmata: round orbicular, oblong discal and round spot below orbicular *Mecyna flavalis*
	21.0-29.0mm. Late July and August. Forewing yellowish; markings grey, sometimes faint.
-	Forewing otherwise 9


9 (8)	Hindwing with termen beneath apex distinctly sinuate. Forewing dark brown with a complex pattern of shining white and ochreous markings 10

-	Hindwing with termen beneath apex not or slightly sinuate. Forewing with markings otherwise 11


10 (9)	Forewing with second cross-line parallel to termen from costa at three-quarters to middle of wing, then bending abruptly towards tornus *Diasemia reticularis*
	17.0-22.0mm. June to August. Hindwing near base without white cross-line.
-	Forewing with second cross-line parallel to termen from costa at three-quarters to middle of wing, then obsolescent or absent *Diasemia ramburialis*
	16.0-22.0mm. June to October. Hindwing near base with well-defined white cross-line.

11 (10)	Forewing paler coloured and usually with a more complex pattern of markings 12

-	Forewing otherwise 16


12 (11)	Forewing extremely elongate and narrow, length costa at least three times width of wing at two-thirds *Nomophila noctuella*
	20.0-33.3mm. April to November. Forewing brown with ill-defined cross-lines, indistinct dark median streak and two large 8-shaped darker blackish-edged spots.
-	forewing otherwise 13


13 (12)	Forewing with termen strongly curved inwards below apex; terminal cilia pure white *Agrotera nemoralis*
	20.0-23.0mm. May to early July. Forewing with basal area yellow, rest of wing ochreous brown; terminal cilia pure white with blackish blotches. Hindwing greyish white with two dark lines.
-	Forewing with termen not or weakly curved inwards below apex; terminal cilia not pute white 14


14 (13)	Smaller species, 22.0-24.0mm. Forewing vivid choclate brown to black with white streaks *Spoladea recurvalis*
	August to October. Forewing deep brown with broad white incomplete median fascia and a subapical white costal bar. Hindwing deep brown with broad white median fascia.
-	Larger species, 28.0-40.0mm. Forewing yellowish with brown transverse lines 15


15 (14)	Larger species, 30.0-40.0mm. Forewing yellowish with brown transverse lines; apex cloudy *Patania ruralis*
	June to October. Forewing whitish ochreous, yellowish tinged; with grey lines and spots. Hindwing similar.
-	Larger species, 28.0mm. Forewing predominantly pale yellow with fine brown markings *Syllepte derogata*
	Alien. Forewing with three cross-lines and some additional markings; cilia yellowish white in basal half (devided by a greyish brown band) and shining grey distally.

16 (11)	Forewing brown. Antenna almost reaching to apex of forewing. Generally smaller species, 13.0-22.0mm *Dolicharthria punctalis*
	July (abroad in this part of Europe also August). Forewing dark brown; both cross-lines present, discal spot white, crescentic. Legs very long.
-	Antenna not almost reaching the apex of forewing 17


17 (16)	Forewing dark greyish brown with two whitish cross-lines. Smaller species, 14.5-20.0mm *Duponchelia fovealis*
	Abroad April to November.
-	Forewing with termen strongly notched below apex; forewing with white strigulae *Diplopseustis perieresalis*
	15.0mm. Both Dutch specimens were taken in September. Alien. Forewing pale greyish ochreous irrorated dark brown towards costa and termen; two fine whitish irregular transverse lines.