Revision of the water scavenger beetle genus Notionotus Spangler, 1972 in the Neotropical Region (Coleoptera, Hydrophilidae, Enochrinae) Gonzalez-Rodriguez, Liza M. Short, Andrew Edward Z. ZooKeys 2022 2022-07-01 1109 141 191 http://zoobank.org/4E05420D-577E-4B12-8B2B-783B0C0BB101 González-Rodríguez & Short, 2022 González-Rodríguez & Short 2022 Insecta Hydrophilidae Notionotus CoL Animalia Notionotus peruensis Coleoptera 0 141 Arthropoda species peruensis sp. nov.   Figs 4K , 9F , 14  Type material examined.   Holotype(male): "PERU: Dept. Madre de/ Dios: Pantiacolla Lodge,/ Alto Madre de Dios R./ 12°39.3'S, 71°13.9'W420 m/ 14-19-XI-2007 D. Brzoska/ ex. flight intercept trap/ PER1B07 004" (SEMC).  Differential diagnosis.   Notionotus peruensiscan be distinguished by the particular shape of the aedeagus, being nearly rectangular in the basal half and abruptly narrow in the apical half (Fig. 9F).  Description.  Size and form: Body length 1.6 mm. Body form elongate oval, convex in lateral view (Fig. 4K). Color and punctation: Dorsally yellow, head mostly yellow and frons pale brown; pronotum with two small black round spots along posterior margin (Fig. 4K). Ventrally brown; maxillary palps, mouthparts, antennae (antennal club slightly darker) and legs yellow. Clypeus and labrum with dense, fine, and weakly impressed ground punctation (punctures separated by 2 xtheir width); pronotum and elytra ground punctation fine, weakly impressed and sparser than on head (punctures separated by 3 xtheir width). Head: Clypeus and labrum shallowly emarginate anteromedially, lateral margins of the labrum bearing setae. Thorax: Prosternum carinate medially, strongly raised, pointing anteriorly and acute. Elevation of mesoventrite with one transversal ridge, elevated medially, lateral sides concave; longitudinal ridge sharp, the point where the two ridges merged acute (e.g., Fig. 10B); elevation flat in lateral view; mesoventrite with triangular shape in ventral view. Metaventrite convex in the median region, pubescent with narrow glabrous patch on the medial and posterolateral area, medial region patch drop-shaped; anterior margin extending to mesoventrite elevation. Metafemora densely covered with hydrofuge pubescence on basal three-quarters. Abdomen: Abdominal ventrites very densely pubescent. Aedeagus (Fig. 9F) with basal piece 0.7 xthe length of a paramere. Base of the parameres wider than the base of the median lobe; outer margins straight along basal two-thirds, then apically sinuate, inner margins straight along basal two-thirds and then convex and tapering apically; apex of parameres rounded and pointing outwards. Median lobe much shorter than the parameres, basal half rectangular, apical half narrowing abruptly, apex rounded.  Etymology. The species is named after Peru, the country where it was collected, as well as for being the first species described for the genus in this country.  Distribution. Known only from the type locality in Peru (Fig. 14).  Life history. The single specimen was collected at a flight intercept trap; nothing is known about its habitat.