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Toelichting

15. BUCCULATRICIDAE

1
Forewing unicolorous
2
 
-
Forewing with markings
4
 
 
2 (1)
Forewing metallic greenish brown. Vertex blackish, greyish brown laterally
 
7.0-9.0mm. Early May to early September. Frons glossy plumbeous; eyecap white. Terminal cilia forewing without cilia-line. Unmarked form. See couplet 5.
-
Forewing brownish or ochreous grey, sometimes shining. Vertex ochreous grey or ochreous brown, sometimes mixed darker
3
 
 
3 (2)
Forewing shining pale ochreous grey. Smaller species, 6.0-7.0mm
 
Mid May to mid August. Frons grey; vertex and eyecap ochreous grey. Terminal cilia forewing without cilia-lines. Form without whitish spots. See couplet 7.
-
Forewing pale to dark brown, not shining. Larger species, 8.0-10.0mm
B. maritima (part)
 
Mid May to early August. Frons shining brown; vertex ochreous brown, mixed dark brown; eyecap ochreous brown. Terminal cilia forewing with two dark cilia-lines. Unmarked form. See couplet 7.
 
4 (1)
Forewing dark with pale markings
5
 
-
Forewing pale with darker markings
9
 
Forewing occasionally more or less suffused dark brown (e.g. Bucculatrix noltei, couplet 15)
 
5 (4)
Vertex unicolorous blackish, greyish brown laterally
 
Forewing metallic greenish brown with two whitish spots on costa, two on dorsum and a whitish basal streak; marking sometimes reduced. See couplet 2.
-
Vertex brown or ochreous, at most mixed blackish brown
6
 
 
6 (5)
Eyecap ochreous grey to dark brown
7
 
-
Eyecap white or yellowish white, often mixed with a few dark scales
8
 
 
7 (6)
Smaller species, 6.0-7.0mm. Forewing shining pale ochreous grey with two whitish costal spots and two dorsal (usually reduced)
 
Terminal cilia forewing without cilia-lines. See couplet 3.
-
Larger species, 8.0-10.0mm. Forewing brown, variably marked whitish: at most present basal streak and outward oblique streaks from costa and dorsum
B. maritima (part)
 
Terminal cilia forewing with two dark cilia-lines. See couplet 3.
 
8 (6)
Forewing dark brown with two whitish spots on costa and two on dorsum; terminal cilia without dark cilia-line
 
7.0-9.0mm. Mid May to early August. Frons ochreous white; vertex ochreous, ferruginous centrally.
-
Forewing whitish, densely irrorate with brown-tipped scales and with a pattern of pale streaks; terminal cilia with dark cilia-line
 
Dark form. Frons pale brown, dark centred. See couplet 11.
 
9 (4)
Forewing with dark postmedian costal streak inwardly oblique
 
6.0-8.0mm. May and June, August and September. Forewing yellow with dark brown markings, among which a narrow longitudinal streak extending from disc to extreme apex; terminal cilia without cilia-line. Frons white; vertex ochreous yellow; eyecap white.
-
Forewing with dark postmedian costal streak outwardly oblique
 
Terminal cilia forewing with or without cilia-line.
 
10 (9)
Vertex ochreous, brown or ferruginous, centred darker
 
-
Vertex white, occasionally ochreous white, often mixed or central darker
 
 
11 (10)
Smaller species, 5.5-7.5mm. Forewing yellowish, variably suffused with brown scales
 
Late April to mid September. Frons white, yellowish white or pale grey; vertex ochreous to ferruginous, mixed blackish brown centrally. Forewing with variable pattern of dark streaks, spots and sometimes a fascia, anterior edge of dark dorsal spot usually with some raised blackish scales; terminal cilia with cilia-line indistinct or absent.
-
Larger species, 7.5-9.0mm. Forewing whitish, variably irrorate with brown-tipped scales
 
Late May, early June and August. Frons yellowish white; vertex pale brown, often darker centred. Forewing whitish, variably irrorate with brown-tipped scales; with darker streaks, spots and a fascia; terminal cilia with dark cilia-line, often irregular.
 
12 (10)
Forewing in distal third with black or dark brown longitudinal streak
 
-
Forewing in distal third without such streak
 
Forewing in apical third sometimes with minute black spot.
 
13 (12)
Thorax white, thinly irrorate blackish brown. Terminal cilia forewing without cilia-line, from lower edge of second costal spot a longitudinal streak extending to near apex
 
7.0-9.0mm. Late May to early August. Frons and vertex white, vertex with some dark brown hair-scales centrally. Forewing white with three ochreous costal spots and one dorsal.
-
Thorax white, conspicuously spotted darker in dark specimens. Terminal cilia forewing with distinct cilia-line, sometimes irregular; a longitudinal dark streak near middle of wing at three-quarters, usually short
 
6.0-8.0mm. Early May to early August. Frons and vertex whitish, vertex centred dark brown. Forewing white with diffuse ochreous basal streak to one-third; three ochreous costal spots and one dorsal.
 
14 (12)
Smaller species, 6.0-7.0mm
 
May to August (abroad). Frons and vertex white, vertex ferruginous centred. Forewing with ground colour white or greyish yellow, markings similar to B. ulmella.
-
Larger species, 7.0-10.0mm
 
 
15 (14)
Thorax yellowish. Frons and vertex whitish to pale ochreous yellow, vertex dark brown centrally. Forewing with ground colour pale greyish yellow
 
7.5-10.0mm. Early May to late September. Forewing variably suffused with coarse dark brown scales; markings pale ochreous or pale brown; terminal cilia without cilia-line.
-
Thorax white, sometimes with a few ochreous brown scales. Frons and vertex white, vertex sometimes with a few dark brown hair-scales. Forewing with ground colour pure white
 
7.0-9.0mm. Mid May to early August. Forewing with three costal spots and one dorsal, all ochreous; a black spot consisting of only one or two scales at three-quarters near middle of wing; terminal cilia with dark cilia-line.
 

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