Agriphila Grass-veneers 1 Agriphila tristella

Agriphila tristella Grass-veneer Moth
Agriphila tristella Grass-veneer Moth
Agriphila tristella
Grass-veneer moths, Crambidae species, are "rolled-up" moths with long snouts that, although night-flying, are easily disturbed from their grass habitat during the day. Agriphila tristella is sometimes called the Common Grass-veneer but the common name is not widely used or recognised. Its most distinctive feature is a white or off-white longways streak which narrows before branching into four tributaries. The forewing corner is slightly chamfered/obtuse.
Agriphila tristella
Grass-veneer Moth
Grass-veneer
Its UK flight time is Jun-Sep. One of the larger crambids, its wingspan, rarely seen, is some 25-28mm. More useful for a rolled-up "Crambid" is its length 15-19mm. Those above are also thought to be Ag. tristella in daytime and night-time overhead views, particularly as the light streak narrows before splitting, but the one above right is unclear.
Agriphila tristella or selasella
Above may also be Ag. tristella since the strength of markings is variable and the white streak narrows before splitting, or it may be Agriphila selasella, a similar moth with a paler background, a less-conical, more tubular body shape, right-angled forewing corners and, crucially, only two, less obvious, white branches (there seem to be three above?). (Flight Jun-Aug; length 14-19mm.)
Agriphila tristella or straminella
Agriphila tristella or straminella grass veneer
Above may also be Ag. tristella since the streak can be off-white/unclear and there appear to be four lighter branches. It could instead be Agriphila straminella?
Grass-veneer
The light moth above reflecting silver with some brown mottling may also be Agriphila straminella? or even Crambus perlella?

Agriphila straminella is a common, straw-coloured grass-veneer with a cone-shaped body and some light streaking and/or brown mottling. Markings are variable. The male is slightly darker and the female has more pleated stripes. Like many crambids, there are dark dots before the silver fringe. (Flight Jun-Sep; length 9-13mm.)



There are many other crambid grass moths, mainly in the Crambus genus, in the UK that are similar to Agriphila tristella and selasella, including:
Crambus lathoniellus (thick, angular white bar), C. pascuella (thick, less-angular, white bar), C. silvella (rounder white streak), C. uliginosellus (bigger white streak), C. hamella (darker moth, longer streak), C. pratella (darker moth, angular streak), and C. ericella (darker moth, thinner streak, northern moors habitat).