Leielmis

Bilton, David T., 2017, A revision of the South African riffle beetle genus Leielmis Delève, 1964 (Coleoptera: Elmidae), Zootaxa 4254 (2), pp. 255-268 : 268

publication ID	https://doi.org/ 10.11646/zootaxa.4254.2.6
publication LSID	lsid:zoobank.org:pub:C8BA1773-6527-4533-9F61-01E421D47266
DOI	https://doi.org/10.5281/zenodo.5999288
persistent identifier	https://treatment.plazi.org/id/03D87B73-FFC5-FFFD-40E1-93BAA09BFCF6
treatment provided by	Plazi
scientific name	Leielmis
status

Treatment

Key to known Leielmis View in CoL species

The species of the genus can readily be distinguished as follows:

1 Size larger, total length at least 2.0 mm from front of pronotum to elytral apices. Dorsum dark brown, with long, golden, recumbent setae throughout ( Fig. 1 View FIGURE 1 C). Elytra broadest at and subparallel in middle; narrowing to apex in apical third ( Fig. 1 View FIGURE 1 C). Elytral puncture rows with coarse punctures anteriorly; elytral intervals raised ( Fig. 3 View FIGURE 3 C). Aedeagus, male tibial modifications and ovipositor characteristic ( Figs 4–6 View FIGURE 4 View FIGURE 5 View FIGURE 6 )................................................ Leielmis hirsutus View in CoL sp. nov.

- Size smaller, total length less than 1.7 mm. Dorsum predominantly black; setae less evident ( Fig. 1 View FIGURE 1 A & B). Elytra broadest in basal third; narrowing to apex from around middle ( Fig. 1 View FIGURE 1 A & B). Elytral intervals relatively flat ( Fig. 3 View FIGURE 3 A & B)..........2

2 Pronotal punctation coarser and denser ( Fig. 2 View FIGURE 2 A). Punctures of elytral rows larger anteriorly; puncture rows more strongly striate impressed ( Fig. 3 View FIGURE 3 A). Aedeagus, male tibial modifications and ovipositor characteristic ( Figs 4–6 View FIGURE 4 View FIGURE 5 View FIGURE 6 )........................................................................................ Leielmis georyssoides ( Grouvelle, 1890) View in CoL

- Pronotal punctation finer and sparser ( Fig. 2 View FIGURE 2 B). Punctures of elytral rows smaller; puncture rows not, or weakly, striate impressed ( Fig. 3 View FIGURE 3 B). Aedeagus, male tibial modifications and ovipositor characteristic ( Figs 4–6 View FIGURE 4 View FIGURE 5 View FIGURE 6 )...................................................................................................... Leielmis gibbosus View in CoL sp. nov.