Microdacne, Skelley, Leschen & Liu, 2021

Skelley, Paul E., Leschen, Richard A. B. & Liu, Zhenhua, 2021, New Australian Erotylinae with notes on Dacnini (Coleoptera: Cucujoidea Erotylidae), Zootaxa 4948 (3), pp. 363-380 : 369-370

Key to species of Microdacne

1. Pronotum with distinct sublateral sulcus on basal 2/3 of pronotal length ( Fig. 29 ); Mt. Glorious , Queensland ..................................................................................... Microdacne gloriousa , new species

- Pronotum with sublateral sulcus greatly reduced or absent..................................................... 2

2(1). Pronotal sublateral sulcus short, distinct only at posterior angle ( Fig. 28 ); Styx River , near Wollomombi, New South Wales ............................................................................ Microdacne styxia , new species

- Pronotal sublateral sulcus lacking at posterior angle, remnant visible at middle of pronotum.......................... 3

3(2). Pronotal sublateral sulcus vague but present medially, near lateral margin ( Fig. 25 ); tibia black with pale base; Mt. Nardi , Night- cap National Park, New South Wales ............................................ Microdacne nardia , new species

- Pronotal sublateral sulcus reduced to series of large punctures near lateral margin ( Fig. 20 ); tibia entirely black; Lamington National Park , Queensland ................................................ Microdacne lamingtonia , new species

Figures

FIGURES 29–32. Microdacne spp., holotypes, anterolateral dorsal oblique view of head and pronotum: 29) M. gloriousa; 30) M. lamingtonia; 31) M. nardia; 32) M. styxia. Scale bar = 1.0 mm.

FIGURES 23–28. Microdacne spp.: 23–25) Microdacne nardia sp. nov., holotype, habitus; 23) dorsal view; 24) ventral view; 25) lateral view; 26–28) Microdacne styxia sp. nov., holotype, habitus; 26) dorsal view; 27) ventral view; 28) lateral view. Scale bar = 1.0 mm.

FIGURES 18–22. Microdacne lamingtonia sp. nov., holotype: 18–19) habitus; 18) dorsal view; 19) ventral view; 20) lateral view; 21) spermatheca; 22) ovipositor. Scale bars: 18–19 = 1.0 mm, 21 = 0.1 mm, 22 = 0.2 mm.