Dundadela Zahradník & Trýzna, 2023

Zahradník, Petr & Trýzna, Miloš, 2023, Description of a new genus and species, Dundadela maculata, from Madagascar (Coleoptera: Ptinidae), Zootaxa 5244 (3), pp. 276-286 : 277-278

Dundadela Zahradník & Trýzna gen. nov.

( Figs 1–16 )

Type species. Dundadela maculata sp. nov., by original designation.

Placement. Subfamily Anobiinae , tribe incertae sedis.

Name derivation. Dundadela , gender feminine, dedicated to our colleague and friend Mr. Radek Dunda (*30 June, 1969–†30 March, 2020), specialist in the family Attelabidae ( Coleoptera : Curculionoidea) ( Figs 20–21 ).

Description. Male. Body long oval, mostly parallel ( Fig. 1 ). Head ( Figs 2–3, 7 , 10 ) forward oriented (probably semi-prognathous in natural position), slightly transverse convex, eyes large, globular, glabrous.Antennae ( Figs 1, 8 , 12, 14 ) with eleven antennomeres. Flagellum filiform, antennomere VIII strongly transverse, last three antennomeres strongly enlarged, IX–X strongly pectinate, XI simple and robust. Pronotum ( Fig. 4 ) transverse, slightly concave dorsally, without central bump; pronotal lateral margin only partly visible, on posterior part invisible (in dorsal view). Elytra ( Fig. 1 ) parallel, without distinct humeral angles, with four very fine and indistinct longitudinal carinae (not visible on Fig. 1 ), equally distributed on elytra. Legs ( Fig. 1 ) short and slim. Anterior coxae ( Fig. 10 ) very close, touching, mesocoxae ( Fig. 9 ) very similar. Metacoxae ( Fig. 9 ) slightly separated. Metathoracic ventrite ( Fig. 9 ) with short longitudinal depression, posteriorly sharpened. All coxae conical. Claws ( Fig. 6 ) widely spaced, not bifurcate at apex. Mesosternum ( Fig. 9 ) posteriorly without hook, metasternum without tarsal grooves. Abdomen ( Fig. 11 ) with five ventrites, I with short blunt wide promontory in middle. Aedeagus symmetrical ( Figs 13, 16 ).

Differential diagnosis. Dundadela gen. nov. differs from other genera of subfamily Anobiinae by antennal structure—no other genus of this subfamily has antennomeres IX and X pectinate. Only genus Megorama Fall, 1905 (subfamily Xyletininae ) has similar structure of antennae, but it has a distinctly hypognathous (orthognathous) head. Megorama (unlike Dundadela ) lacks elytral carinae.

Distribution. So far known only from Madagascar.

Figures

FIGURES 1–8. Dundadela maculata gen. nov. & sp. nov., male paratype from Parc National de l´Isalo, Piscine nat.; 1, dorsal habitus; 2, head in dorsal view; 3, head in frontal view; 4, pronotum in dorsal view; 5, apex of elytra in hind view; 6, left protarsus in dorsal view; 7, lateral habitus; 8, right antenna in dorsal view.

FIGURES 9–11. Dundadela maculata gen. nov. & sp. nov., male paratype from Moramanga; 9, ventral habitus; 10, head in ventral view; 11, abdomen in ventral view.

FIGURES 12–16. Dundadela maculata gen. nov. & sp. nov., holotype; 12, left antenna in dorsal view; 13, aedeagus in dorsal view (drawing); 14, right antenna in dorsal view; 15, tegmen in dorsal view; 16, aedeagus in dorsal view (macro-photograph). Scale bars in mm.

FIGURES 20–21. Our friend and colleague Radek Dunda (†), after whom the new genus is named.