舟水龟甲，节肢动物门-昆虫纲-鞘翅目-水龟甲科。6.5-7.8mm.This species resembles Hydrocassi imperialis in most characters, except the slightly denser,coarse punctures on discal part of pronotum and the slightly deeper punctures om alternate elytral intervals smooth between punctures; coarse punctures on alternate interstices shallow, but distinct.Raised antero-medial portion of metasternum more convex shaped.