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Cingilia catenaria larva
Cingilia catenaria (Chain-dotted Geometer) larva from a rich fen near Lake Superior with both open areas with Carex lasiocarpa and shrubby areas with Larva of the Chain-dotted Geometer Moth. The larvae feed on the leaves of many species of shrubs and trees a large number of which grow in fens and other peatlands. Among these are bog laurel, cranberry, leatherleaf, sweet gale, tamarack, and white cedar. These species were present in the fen where this caterpillar was found.
The patterns on this small caterpillar are unusual. Each spiracle is marked by a black dot on a white oval background. At the tip of the oval are two black markings with a flowing shape. Combined these remind of a dog's face.
''Cingilia catenaria'', commonly known as the chain-dotted geometer, chain dot geometer, chainspotted geometer or chain-spotted geometer, is a moth of the family Geometridae. It is found from Nova Scotia south to Maryland and west to Kansas and Alberta.
The wingspan is 30–40 mm. The wings are white to pale brown or greyish. The antemedial, postmedial and terminal lines are composed of black dots. Adults are on wing from late August to early October in one generation per year.
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