Notionotus
Creators: name: Jia, Fenglong
name: Short, Andrew Edward Z.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Hydrophilidae
Notionotus

description: Key to the Old World species of Notionotus
Modified from Hebauer (2001).
1 Elytra without sutural stria. Antennae 8-segmented..................................................................................................... 2
- Elytra with sutural stria. Antennae 9-segmented ......................................................................................... N. suturalis
2 Ground punctation on the elytra distinct....................................................................................................................... 4
- Ground punctation on the elytra absent or appearing absent, giving the elytra an entirely smooth appearance.......... 3
3 Slightly larger species (1.8–2.0 mm). Dorsum uniformly medium to light yellow in color ...................... N. ochreatus
- Slightly smaller species (1.6–1.8 mm). Elytral disc dark, brown to dark brown, with two light yellow patches mediobasally; elytral margins pale (Fig. 1 A) ............................................................................................ N. fenestratus
4 Pronotum yellow or pale in color with central third distinctly darkened (e.g. Fig. 1 D, E). Elytra with broadly pale
margins posteriorly ....................................................................................................................................................... 5 - Pronotum generally unicolorous, at most with slightly paler margins; discal region never differentially colored. Elytra without or with only narrow pale margins ......................................................................................................... 6 5 Size smaller (<2.0 mm). Dorsal ground punctation not detectable on pronotum and very faint on elytra. ................... .......................................................................................................................................................... N. attenuatus sp.n.
- Size larger (>2.0 mm). Dorsal ground punctation faint but detectable on pronotum, and very distinct on elytra ......... ............................................................................................................................................................... N. notaticollis.
6 Dorsal color dark brown, with narrow pale margins. Elytral ground punctation present but faint; not subseriate........ .................................................................................................................................................................... N. mazzoldii
- Dorsal color yellow to light brown, without distinctly pale margins. Elytral ground punctation distinct, subseriate ... ......................................................................................................................................................................... N. siklisi.
description: Published as part of Jia, Fenglong & Short, Andrew Edward Z., 2011, Notionotus attenuatus sp. n. from southern China with a key to the Old World species of the genus (Coleoptera: Hydrophilidae), pp. 55-58 in Zootaxa 2830 on pages 57-58, DOI: 10.5281/zenodo.277303