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[EN] Key to the families

[NL] Familiesleutel

Toelichting

44. EPERMENIIDAE

1
Forewing without scale-teeth on dorsum
 
10.0-13.0mm. July and August. Forewing dark brown with distinct yellowish orange spot before tornus and another in disc above tornus.
-
Forewing with one or more scale-teeth on dorsum
2
 
 
2 (1)
Smaller species, 9.0-10.0mm. Forewing blackish brown, often unicolorous, with scattered whitish scales; one dorsal scale-tooth at one-third
 
June. Forewing, including cilia, two and a half times longer than broad; sometimes with two indistinct pale brown patches.
-
Larger species, 12.0-14.0mm. Forewing often strongly patterned, with more than one scale-tooth
3
 
Forewing, including cilia, more than three times longer than broad.
 
3 (2)
Vertex dark brown, thorax and tegulae blackish brown, sometimes suffused whitish.
 
12.0-13.0mm. May to October. Colour forewing usually blackish brown, variable, but never predominantly ochreous; three or four scale-teeth; blackish, inwards oblique fascia at one-half.
-
Vertex, thorax and tegulae ochreous
4
 
Forewing with ground colour ochreous; two, occasionally three scale-teeth.
 
4 (3)
Forewing with oblique brownish median fascia (originating from first scale-tooth), black-edged; streak from disc to apex and inner dark cilia-line broad and black
 
12.0-14.0mm. May to early July and late July to early September. Forewing with markings more contrasting. Male genitalia can be inspected without dissection: uncus pointed apically.
-
Forewing with oblique brownish median fascia (originating from first scale-tooth) at most dark brown; streak from disc to apex and inner dark cilia-line narrow and dark grey
 
12.0-14.0mm. Early June to early August. Forewing with markings less contrasting. Male genitalia with uncus spatulate at apex.
 

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