Emphania sulcipennis Moser, 1911

Ahrens, Dirk & Fabrizi, Silvia, 2008, A taxonomic revision of the Malagasy genus Emphania Erichson, 1847 (Insecta, Coleoptera, Scarabaeidae, Sericini), Zoosystema 30 (4), pp. 917-927 : 922-923

Emphania sulcipennis Moser, 1911

Emphania sulcipennis Moser, 1911: 513 .

TYPE MATERIAL. — Lectotype (here designated): ♀ “ Madagascar Amber Geb./ Emphania sulcipennis Type Mos.” ( ZMHB).

ADDITIONAL MATERIAL EXAMINED (list not sexed). — Madagascar. Madagascar Nord, Mont. d’Ambre, Vadon et Peyrieras, 1 ♂ ( MNHN). — Madagascar [Inst. Scient.], Mont.d’Ambre, XII.1948, 1 ♀ ( MNHN). — Antsiranana prov., Ambohitra, 30.XI-2.XII.1996, Ivo Jeniš leg., 1 ex. (coll. PP). — Diego Suarez, Nevinson Coll., 2 ex. ( BMNH 1918[-14]). — Diego Suarez, [17] 1893, Ch. Allaud, 1 ♂ ( MNHN).

REDESCRIPTION OF LECTOTYPE

Length: 6.7 mm; length of elytra: 4.5 mm; width: 4.2 mm. Dorsal body surface dark brown with greenish or partly reddish shine. Head and antenna as in E. metallica but the labroclypeus is only as wide as long being widest at base, with lateral margins evenly convex and convergent to moderately rounded anterior angles; entire clypeal surface very weakly convex, finely and densely punctate, entire surface sparsely covered with long, erect setae. Eyes moderately small, ratio of diameter/interocular width: 0.68 (♂). Antennomeres 3-5 not fused. Pronotum as in E. metallica ; but its basal marginal line is laterally more distinct although widely interrupted medially; surface glabrous with a single long seta on the center of each pronotal half; anterior and lateral borders sparsely setose. Scutellum as in E. metallica but punctures evenly dense. Elytra with the apical interior angle strongly convex, apical external angle almost blunt and moderately rounded in the tip, apical border weakly convex, without distinct declivity separated from apical portion of elytra; striae distinctly impressed and finely punctate, intervals convex, with fine, dense punctures along the striae, glabrous; epipleural edge robust, ending at the external apical angle of elytra, epipleura sparsely setose. Metacoxa as in E. metallica , but its external angle posteriorly right-angled. Ratio of length of metepisternum/ metacoxa: 1/2.19. Mesosternal process indistinct. Pygidium as in E. metallica , but on basal half almost smooth and with a few long setae on apical half. Legs as in E. metallica , but basal one of dorsal spines at basal quarter of metatibial length; punctures on lateral face sparse, glabrous and medial face with one to four coarse punctures beside the dorsal margin; first metatarsomere about one third of its length longer than the upper tibial spur.

Aedeagus: Figure 2 D-F.

VARIATION

Length: 6.6-7.0 mm; length of elytra: 4.4-4.7 mm; width: 4.0- 4.4 mm.

REMARKS

The species differs from E. metallica in numerous characters such as the smaller body size, the distinctly incised elytral striae and the shape of the posterior margin of the metacoxa, the unfused antennomeres 3-5, and the shape of male genitalia. Since in the original description there is no comment on the number of specimens the description was based, the only available syntype was designated as lectotype.

Figures

FIG. 2. — A-C, Emphania nitida Moser, 1911 (lectotype); D-F, E. sulcipennis Moser, 1911 (Madagascar Nord, Montagne d’Ambre); G-I, E. semiviridis n. sp. (holotype); J-L, E. erichsoni n. sp. (holotype); M-O, E. subsmaragdina n. sp. (holotype); P-R, E. ranomafanae n. sp. (holotype); A, D, G, J, M, P, aedeagus,left side lateral views;B, E, H, K, N, Q, aedeagus,dorsal views;C, F, I, L, O, R, aedeagus, right side lateral views. Scale bars: 1 mm.