Leielmis, Deleve, 1964

Bilton, David T., 2018, A new species of Leielmis Delève, 1964, with a revised key to members of the genus (Coleoptera: Elmidae), Zootaxa 4441 (3), pp. 592-596 : 595

Key to known Leielmis species

The following key iS modified from that provided in Bilton (2017) to incorporate L. armipes sp. nov. The reader iS referred to thiS paper for figureS of featureS of remaining taXa.

1 Size larger, total length at leaSt 2.0 mm from front of pronotum to elytral apiceS. DorSum with long, golden, recumbent Setae throughout. Elytra broadeSt at and Subparallel in middle; narrowing to apex in apical third. Elytral puncture rowS with coarSe punctureS anteriorly; elytral intervalS raiSed. AedeaguS, male tibial modificationS and ovipoSitor characteriStic. ............................ ............................................................................................................................................................ Leielmis hirsutus Bilton, 2017 .

- Size Smaller, total length leSS than 1.7 mm. DorSum with Setae leSS evident. Elytra broadeSt in baSal third; narrowing to apex from around middle. Elytral intervalS relatively flat.................................................................................................................................. 2

2 Pronotal punctation coarSer and denSer. PunctureS of elytral rowS larger anteriorly; puncture rowS more Strongly Striate impreSSed (Fig. 3A). AedeaguS, male tibial modificationS and ovipoSitor characteriStic .................. Leielmis georyssoides (Grouvelle, 1890)

- Pronotal punctation finer and SparSer (e.g. Fig. 1B ). PunctureS of elytral rowS Smaller; puncture rowS not, or weakly, Striate impreSSed (e.g. Fig. 1B )..................................................................................................................................................................... 3

3 Male metatibiae with Strong internal Spine ( Fig. 1C ). Venter with relatively fine, SparSe punctation ( Fig. 2A ). AedeaguS characteriStic ( Fig. 1D ). ............................................................................................................................................. Leielmis armipes sp. nov.

- Male metatibiae without evident internal Spine. Venter with relatively coarSe, denSe punctation ( Fig. 2B ). AedeaguS characteriStic .......................................................................................................................................................... Leielmis gibbosus Bilton, 2017 .

Figures

FIGURE 1. Leielmis armipes sp. nov. A) holotype male, dorSal habituS; B) paratype female, detail of dorSal Sculpture; C) holotype male, meSo and metatibia, dorSal view; D) holotype male, aedeaguS, ventral and lateral viewS; E) paratype female, ovipoSitor, diStal gonocoxite. Scale barS = A) 1 mm; B) –E) 0.25 mm.

FIGURE 2. Leielmis SpecieS. A) L. armipes sp. nov., venter; B) L. gibbosus venter; C) South Africa, WeStern Cape, Hexrivier mountainS, Small Stream in Green Gulley below MoStertShoek TwinS, 1,200 m, type locality of L. armipes sp. nov. Scale bar = 0.25 mm.