库水沼梭，节肢动物门-昆虫纲-鞘翅目-沼梭科。Length 3.2-3.5 mm, width 1.9-2.1 mm. Body wide, subparallel in the middle.Head: Yellow-brown to yellow-red, seen frombeside brown marks behind eyes, sometimes rwosmall vague spots on vertex. Weakly to moderatelystrongly punctured. Distance between eyes 0