Smicronyx kiboanus Voss 1971

Haran, Julien, 2018, A review of the genus Smicronyx Schoenherr (Coleoptera, Curculionidae, Curculioninae) in tropical Africa, Zootaxa 4508 (2), pp. 267-287 : 282-283

Smicronyx kiboanus Voss 1971

Figs 2B , 4F , 5N

Smicronyx kiboanus Voss, 1971 :

Material examined. Paratype series [ Tanzania]. ‘paratypus’ ‘m.1200, vii-1967 ’ ‘ Tanganika, m. te Kibo’ ‘ Paratypus’ ‘coll. mus. Tervuren’ ‘ Smicronyx kiboanus Voss coll. Osella’ (1 ♂, 3♀, RMCA). Other material. Tanzania, Katesh, south of Mount Hanang, 1850 m, 18/ 31.v.1957, P. Basilewsky & N Leleup leg. (1 ♂, RMCA) ; Kihurio , 80 km south of Same, 750 m, 15.v.1957 (1 ♂, RMCA) .

Diagnosis (♂). Body length 2.4–2.6 mm. Colour. Body integument entirely black; vestiture of elytra consisting of rounded, recumbent, overlapping brown and greyish scales, usually slightly paler on humeri, concealing integument of interstriae, and of a series of semi-erect brown scales on each interstria. Head. Rostrum almost straight in lateral view, robust, slightly thicker near antennal insertion in dorsal view than width of profemora near middle, as long as head capsule + prothorax. Prothorax. Slightly wider than long (w/l ratio: 1.07), sides rounded in basal 2/3, constricted in apical 1/3, width at base 1.6 time larger than at apical margin. Elytra. Widest before middle, slightly rounded (w/l ratio: 0.68). Legs. Femora moderately clavate, armed with small but distinct ventral tooth, tibiae straight. Genitalia. Penis short (w/l ratio: 0.68), sides straight, subparallel, converging near apex, greatly and regularly curved in lateral view ( Fig. 5N ).

Life history. Unknown. Adults were collected in May and July. Distribution. Tanzania. Distribution. Smicronyx kiboanus is distinguishable from other species by its rostrum, which is slightly thicker near antennal insertion in dorsal view than the width of the profemora, and almost straight in lateral view ( Fig. 4F ).

Figures

FIGURE 2. Habitus of species of Smicronyx from tropical Africa (Part 2). A. Smicronyx namibicus sp. n., holotype ♂. B. S. kiboanus Voss, paratype ♂. C. S. guineanus Voss, specimen from Senegal (♂). D. S. buchnerae sp. n., holotype ♂. Scale bars (A to D): 1 mm.

FIGURE 4. Head and prothorax in lateral view of species of Smicronyx from tropical Africa (Part 2). A. Smicronyx pauperculus Wollaston, specimen from Tanzania (♂). B. S. rufus sp. n., holotype ♂. C. S. zonatus sp. n., holotype ♂. D. S. kenyanus sp. n., holotype ♂. E. S. namibicus sp. n., holotype ♂. F. S. kiboanus Voss, paratype ♂. G. S. guineanus Voss, specimen from Senegal (♂). H. S. buchnerae sp. n., holotype ♂.

FIGURE 5. Penis of Smicronyx from tropical Africa, in dorsal (left) and lateral (right) view. A. Smicronyx bisignatus Hoffmann, holotype ♂. B. S. remaudierei Hoffmann, holotype ♂. C. S. adjamati, sp. n., holotype ♂. D. S. crassithorax sp. n., paratype ♀. E. S. zambianus sp. n. holotype ♂. F. S. syriacus Faust, specimen from Israel (♂). G. S. gossypii Marshall, holotype ♂. H. S. albosquamosus Wollaston, specimen from Israel (♂). I. S. pauperculus Wollaston, specimen from Tanzania (♂). J. S. rufus sp. n., holotype ♂. K. S. zonatus sp. n., holotype ♂. L. S. kenyanus sp. n., holotype ♂. M. S. namibicus sp. n., holotype ♂. N. S. kiboanus Voss, paratype ♂. O. S. guineanus Voss, specimen from Senegal (♂). P. S. buchnerae sp. n., holotype ♂. Scale bars (A to N): 100 µm.