A revision of Cissidium Motschulsky (Coleoptera: Ptiliidae) with seventy seven new species

Abstract

This paper examines the described species of Cissidium and adds 77 new ones based on a study of material in the Manchester Museum, UK, the Natural History Museum, London, UK and in the possession of Dr Yoshihiro Sawada, Japan. The new taxa are: Cissidium advena sp. nov., C. amazonicum sp. nov., C. amieuense sp. nov., C. angulatum sp. nov., C. angusi sp. nov., C. apterum sp. nov., C. arcuatum sp. nov., C. aristophanousi sp. nov., C. besucheti sp. nov., C. bifoveolatum sp. nov., C. bilineatum sp. nov., C. bomjesus sp. nov., C. brachypterum sp. nov., C. ceylonicum sp. nov., C. clareae sp. nov., C. cryptophagoides sp. nov., C. davaoense sp. nov., C. deanei sp. nov., C. delicatum sp. nov., C. dewhurst sp. nov., C. dividuum sp. nov., C. dybasi sp. nov., C. eciton sp. nov., C. ecuadoriense sp. nov., C. faustum sp. nov., C. flavum sp. nov., C. franzi sp. nov., C. fraternum sp. nov., C. glabratum sp. nov., C. greensladei sp. nov., C. houailou sp. nov., C. ibicarense sp. nov., C. impressum sp. nov., C. inexspectatum sp. nov., C. insulare sp. nov., C. kolombangaricum sp. nov., C. lamington sp. nov., C. lawrencei sp. nov., C. loebli sp. nov., C. logunovi sp. nov., C. losbanos sp. nov., C. lucidulum sp. nov., C. luctuosum sp. nov., C. mahleri sp. nov., C. mindanao sp. nov., C. misellum sp. nov., C. modestum sp. nov., C. montanum sp. nov., C. murphyi sp. nov., C. mussardi sp. nov., C. noumeae sp. nov., C. obscenum sp. nov., C. obscurum sp. nov., C. obsoletum sp. nov., C. opacum sp. nov., C. orami sp. nov., C. peruviense sp. nov., C. pilosellum sp. nov., C. pinense sp. nov., C. plaumanni sp. nov., C. puncticolle sp. nov., C. riparium sp. nov., C. robustum sp. nov., C. rogeri sp. nov., C. seditiosum sp. nov., C. semicalvum sp. nov., C. similatum sp. nov., C. steeli sp. nov., C. subangulatum sp. nov., C. subfaustum sp. nov., C. sueae sp. nov., C. trangse sp. nov., C. upiense sp. nov., C. visendum sp. nov., C. waginicum sp. nov., C. werneri sp. nov. and C. yoruba sp. nov. The division of the genus is discussed and five species groups are established. The majority of the new species are the first records of Cissidium for the 28 countries represented.

Kekveus brevisulcatus sp. nov., a new featherwing beetle from mid-Cretaceous amber of northern Myanmar (Coleoptera: Ptiliidae)

“…Nevertheless, shorter but still longitudinally-oriented paired pronotal foveae may also be found in some Cissidium ( e.g. , Darby, 2020b : Figs. 12B and 16B).…”

“…The general morphological terminology follows Lawrence & Ślipiński (2013) . The terminology for mesoventral structures follows Darby (2020b) .…”

The First Fossil of Nossidiinae From Mid-Cretaceous Amber of Northern Myanmar (Coleoptera: Ptiliidae)

“…The family Ptiliidae is a cosmopolitan beetle group in Staphylinoidea. The number of described ptiliid species increased fast in the past several years (e.g., 77 new species of Cissidium Motschulsky in a single article: Darby, 2020). Currently, there are 1,015 valid species known (Newton, 2019, updated by A.F.…”