Erymanthus diversipes Pic, 1932

Gerstmeier, Roland & Salvamoser, Max, 2014, Revision of the checkered beetle genus Erymanthus Spinola, 1841 (Coleoptera, Cleridae, Clerinae), Zootaxa 3755 (6), pp. 501-548 : 512-514

Erymanthus diversipes Pic, 1932

( Figs 14–15 , 39 D)

Pic 1932: 6; Pic 1933: 116.

Specimens examined: Lectotype (designated here): Musée de Congo, Kundelungus, Mme Tinant, Type, R. Det. D 2225, Erymanthus diversipes mp, Erymanthus diversipes Pic 1932 , J. J. Menier det. 19, Holotype (MRAC). Comment on the type specimen: As Pic (1932: 6) made no reference to the number of specimens in his description, the specimen labeled “ Holotype ” located in MRAC must therefore be considered a syntype (ICZN 1999: Article 73.2) and available for lectotype designation (ICZN 1999: Article 74.1). Menier’s designation was never formalised through publication.

Others: N. W. Rhodesia, Kashitu, N of Broken Hill, Nov. 1914, H. C. Dollman, H. C. Dollman Coll. 1919-79, J. B. Corporaal det. 1928, Erymanthus bicolor Chap. , Erymanthus diversipes Pic 1932 , J. J. Menier det. 1981 (BMNH). N. W. Rhodesia, Kashitu, N of Broken Hill, Nov. 1914, H. C. Dollman, H. C. Dollman Coll. 1919-79, J. B. Corporaal det. 1928, Erymanthus bicolor Chap., Ex Brit. Museum 1928 (RMNH). Zambia NE. 2004, 50km SW Luwingu, N of Lake Bangweulu, 27.11. Snížek, Tichý, Jakub Rolčík Collection Prague (JRCP).

Diagnosis: Erymanthus diversipes can be confused with E. bicolor , primarily because of their very similar coloration. Specimens of E. bicolor have the prothoracic legs orange and orange antennae, in E. diversipes only the profemora are orange and only the antennomeres 1–2 are orange, the remainder is black.

Length: (4 specimens measured) 9–12mm (average 11mm).

Head: Dark orange; antennomeres 1–2 orange to red brown, 3–11 black; frontal umbo with two grooves; with isolated long black pilosity.

Pronotum: Pronotal length to width ratio 1.06:1 to 1.11:1 (average 1.08:1); dark orange; pronotal groove with dark marking in the middle; posterior fringe dark; pronotal groove conspicuous, gibbosities plane; with isolated long black pilosity.

Scutellum: Black, with dense punctation.

Elytra: Elytral length to width ratio 1.88:1 to 1.97:1 (average 1.91:1); metallic blue; strongly dilated apically; punctation circular to elongate-ovate, irregularly distributed, interstices smaller than diameter of punctation; with isolated long dark pilosity; gibbosities A,B,C and E with dark setal tuft.

Legs: Metallic blue, claws brown; profemora orange, distally dark blue.

Lower surface: Dark with blue cast, only prothorax apically yellow to red brown.

Male genitalia, pygidium, ventrite VI: Tips of tegminal lobes pointed, tegminal lobes one-tenth length of tegmen; tegminal struts broadened until three-fifths length and tapering rapidly until four-fifths, last fifth narrow with furcate tip; phallic tip hooklike in lateral view; posterior side of pygidium rather angular; processes of ventrite VI blunt.

Distribution: Southern Congo and northern Zambia.

Seasonal occurrence: Collected in November.

Figures

FIGURE 14. Erymanthus diversipes: (A) Aedeagus ventral, (B) Phallus lateral, (C) Tegmen dorsal, (D) Spicular fork, (E) Pygidium, (F) Ventrite VI; (scale bar 1 mm).

FIGURE 15. Distribution of Erymanthus diversipes.

FIGURE 39. (A) Erymanthus ater, (B) Erymanthus belzebuth, (C) Erymanthus bicolor, (D) Erymanthus diversipes, (E) Erymanthus flavonotatus, Lectotype, (F) Erymanthus gemmatus; (scale bars 5 mm).