Anaxius

Kamiński, Marcin J. & Schoeman, Colin S., 2018, Taxonomic revision of a darkling beetles genus Anaxius (Tenebrionidae: Pedinini: Helopinina), Zootaxa 4455 (3), pp. 471-485: 472-473

publication ID

https://doi.org/10.11646/zootaxa.4455.3.4

publication LSID

lsid:zoobank.org:pub:69209FF7-80B0-409D-A257-0B88C65E903F

persistent identifier

http://treatment.plazi.org/id/038BC66E-FFD5-9656-F7AB-F92AFA03FD96

treatment provided by

Plazi

scientific name

Anaxius
status

 

Key to the species of the genus Anaxius  (males only).

1. Intercoxal process of prosternum strongly depressed in apical part (lateral view). Elytron with setation composed of short, yellowish bristles and elongate black stiff setae ( Fig. 1C, FView FIGURE 1). Protarsus slightly dilated ( Fig. 1FView FIGURE 1). Metafemora with small denticles ( Fig. 2DView FIGURE 2)............................................................................................ 2

-. Intercoxal process of prosternum straight or slightly depressed in apical part (lateral view). Elytron bare or with inconspicuous bristles ( Fig. 1A, B, D –GView FIGURE 1). Protarsus distinctly dilated (at least basal tarsomere) ( Fig. 1AView FIGURE 1). Metafemora not covered with small denticles............................................................................................. 3 bristles in apical part ( Fig. 1BView FIGURE 1). Inner side of mesofemora with preapical denticle ( Fig. 1FView FIGURE 1).................... prozeskyi  -. Mesotibia evenly curved ( Fig. 1CView FIGURE 1). Underside of profemora not covered with bristles. Inner side of mesofemora without preapical denticle ( Fig. 1CView FIGURE 1).................................................................... limpopoensis 

3. Elytron covered with small, shiny, tubercles ( Fig. 1AView FIGURE 1, 2EView FIGURE 2). Only basal tarsomere of protarsus widened, remaining tarsomeres extremely narrow ( Fig. 1AView FIGURE 1). Mesotarsus with apical tarsomere widened ( Fig. 2FView FIGURE 2). Mesotiba flattened laterally ( Fig. 2FView FIGURE 2)............................................................................................... bloubergensis 

-. Elytron covered with punctures. Basal tarsomere of protarsi widened, with subsequent tarsomeres slightly narrower ( Fig. 1EView FIGURE 1). Mesotarsus with relatively narrow first tarsomere. Mesotibia not flattened laterally.................................. 4

4. Protibia with deep median cavity ( Fig. 2GView FIGURE 2). Metatibia bent inwards ( Fig. 1D, EView FIGURE 1).................................... 5

-. Protibia without or with shallow median cavity. Metatibia not bent inwards........................................ 6

5. Meso- and metafemora simple. Metatibia bent more medially ( Fig. 1DView FIGURE 1).................................. meletsensis 

-. Mesofemora with preapical denticle ( Fig. 1EView FIGURE 1). Metafemora with fringe of bristles on underside. Metatibia bent more basally ( Fig. 1EView FIGURE 1)....................................................................................... obesus 

6. Body size = 6.5–7.0. Mesofemora with preapical denticle ( Fig. 1BView FIGURE 1). Aedeagal tegmen narrowed periapically ( Fig. 3BView FIGURE 3)................................................................................................. campbellae 

-. Body size ca. 4.5. Mesofemora simple. Aedeagal tegmen evenly narrowed towards apex ( Fig. 3EView FIGURE 3).......... pseudoloensus