Euzophera pinguis, the tabby knot-horn, is a moth of the family Pyralidae. It was described by Adrian Hardy Haworth in 1811 and is found in Europe.

The wingspan is 23–28 mm. The forewings are light brownish-ochreous, somewhat reddish-tinged, pale sprinkled, with a few blackish scales; lines hardly paler, first rather curved, edged anteriorly by a broad blackish band, posteriorly by a thick blackish suffusion, second angulated in middle, strongly edged with dark fuscous; terminal area more infuscated. Hindwings light fuscous. The larva is pinkish ochreous; dorsal line darker, interrupted; a lateral spot on 3 and 12 ringed with reddish-brown; head and plate of 2 reddish-brown, blackish-marked: in bark of ash; 9-6, perhaps sometimes living two years.

The moths are on wing from July to August depending on the location.

The larvae feed on Fraxinus excelsior.

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