Hemipeplinae

Kc, Sajan & Pollock, Darren A., 2025, Review of the Hemipeplinae (Coleoptera: Mycteridae) fauna of the world with descriptions of twenty-nine new species, Zootaxa 5574 (1), pp. 1-140 : 54-55

Key to the Afrotropical Hemipeplinae (Adults)

1. Pronotum without anterior emargination (Fig. 24B); abdominal process wider (Fig. 24D); color rufopiceous with four large elliptical pale spots on elytra (Fig. 24A); elytra widened laterally, not subparallel; apical patch absent/not visible ( Madagascar).................................................... Eurypeplus gen. nov. quadrimaculatus sp. nov.

- Pronotum with anterior emargination (Figs 25–33); abdominal process narrower ( Fig. 1C ); color brown throughout the body; elytra not widened laterally, subparallel; apical patch present......... Hemipeplus Latreille, 1829 ……..…………………. 2

2. Head without temples (Figs 25–27)....................................................................... 3

- Head with temples (Figs 28–33).......................................................................... 5

3. Anterolateral angles of pronotum broadly rounded; pronotal lobe less distinct (Fig. 25B)....... H. reichertae Pollock, 1997

- Anterolateral angles of pronotum narrowly rounded, almost angulate; pronotal lobe distinct (Figs 26B, 27B)............. 4

4. Anterior pronotal margin emarginate; posterolateral angles of pronotum sharply acute; pronotal lobe W–shaped, with deep median notch (Fig. 26B)............................................................. H. egregius Arrow, 1930

- Anterior pronotal margin not emarginate; posterolateral angles of pronotum obtuse and rounded; pronotal lobe rounded without median notch (Fig. 27B)........................................................... H. grouvellei Pollock, 1997

5. Pronotum long, narrow, and subquadrate (GPW/PL: 0.96–1.00 ( Pollock 1997)), lateral margins subparallel, only slightly widened anteriorly (Fig. 28B) (Rodrigues Island)....................................... H. rodericensis Scott, 1933

- Pronotum short, wider, and subcordate (GPW/PL: 1.13–1.29 ( Pollock 1997)), lateral margins not subparallel, broadly widened apically (Figs 29–33).................................................................................. 6

6. Temples large, at least 1/3 length of eye (Fig. 29B).............................. H. madagascariensis Grouvelle, 1906

- Temples small, smaller than 1/3 length of eye (Figs 30–33).................................................... 7

7. Anterior pronotal pad absent (Fig. 30C).............................................. H. suturalis Grouvelle, 1919

- Anterior pronotal pad present (Figs 31–33)................................................................. 8

8. Temples short, roundish; anterior pronotal pad wide with dense setae; color pale and shiny (Fig. 31)... H. dollmani Scott, 1933

- Temples prominent, roundish to angulate; anterior pronotal pad narrow without dense setae; color rufous, rufopiceous, to rufotestaceous (Figs 32–33)............................................................................. 9

9. Temples longer;pronotal pad indistinct (Figs 32.1C, 32.2C); posterolateral angles of pronotum acute or rectangular; posterolateral margins of pronotum subparallel to near mid-length; color usually rufopiceous (Fig. 32.2), rufous in some specimens (Fig. 32.1); widespread............................................................... H. africanus Grouvelle, 1915

- Temples shorter; pronotal pad distinct (Figs 33.1C, 33.2C); posterolateral angles of pronotum round and obtuse; posterolateral margins of pronotum not subparallel to near mid-length (Figs 33.1B, 33.2B); color rufous to rufotestaceous, not rufopiceous (Figs 33.1A, 33.2A); south Kenya and Malawi........................................ H. alluaudi Grouvelle, 1923

Figures

FIGURE 1. A. Measurements taken of Hemipeplinae specimens. GHW = greatest head width; HL= head length; GPW = greatest pronotum width; PL = pronotum length; GEW = greatest combined elytral width; EL = elytral length; B. Dorsal habitus of Hemipeplus microphthalmus, showing important anatomical features; C. Ventral habitus of Hemipeplus microphthalmus, showing important anatomical features; D. Male genitalia of Hemipeplus africanus, showing important anatomical features.