Scopula imitaria, the small blood-vein, is a moth of the family Geometridae. It was first described by Jacob Hübner in 1799 and it is found throughout Europe and in North Africa.
The wingspan is 12–26 mm. (1st generation); the next generation is typically much smaller and reaches no more than 18 mm. The forewing leading edge (costa) forms an acute angle with the outer edge forming a sharp point. The hindwings also come to a sharp angle in the middle of the outer edge (a "tail"). The pattern and colouring are variable. The wings are reddish, yellowish or orange to light brown. The lines and marginal line are almost always clear, but fine. The median crossline is clearly developed and inclined slightly diagonally to the inner and outer crossline. It is slightly curved and very weakly wavy and often accompanied by a distal facing shadow. The interior and exterior crosslines are slightly wavy (more clearly than the median line). The hindwings have the pattern, however they often lack the inner crossline. The outer cross line shows a pointed bulge outwards, which follows the "tail" of the perimeter. Discal flecks are only sometimes present or weak, They are more pronounced on the hindwing. The discal fleck of the hindwings sits on the outside of the medium line or in the "shadow". On the forewing it is basal to the median line.
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