(ハムシ)

Rui-E Nie, Huai-Jun Xue, Yi Hua, Xing-Ke Yang & Alfried P. Vogler (2012) Distinct species or colour polymorphism? Life history, morphology and sequence data separate two Pyrrhalta elm beetles (Coleoptera: Chrysomelidae). Systematics and Biodiversity (2012), 10(2): 133–146. /オープンアクセス.P.maculicollisの交尾器内袋の形がすごい.
http://www.tandfonline.com/doi/abs/10.1080/14772000.2012.687783#.UrT8OCiEPDo