Eupines novem sp. nov.

Fig. 37; map Fig. 53

Diagnosis: Head with vertexal foveae punctiform; antennae 9-segmented with one-segmented antennal club; A4, A5, A6, A7 and A8 unmodified, A9 widest at middle, base strongly concave at inner side, slightly impressed near basal two-fifths in lateral view. Abdominal ventrite 2 unmodified; ventrite 6 unknown. Protrochanters with long ventral seta, about twice of protrochanteral width, lacking ventral spine; protibiae and mesotibiae unmodified.

Description: Body length 1.33 mm; body colour dark brown with lighter coloured legs. Head wider than long; frons not narrowed at end, about three-fourths width of head at eye level; eyes moderately developed, with about 16 facets; vertexal foveae punctiform; antennal tubercles moderately developed; postantennal notches distinct and broad; postantennal cavities large, about as long as antennal tubercles in dorsal view; antennae 9-segmented with single segmented antennal club; A4, A5, A6, A7 and A8 unmodified, A9 widest at middle, base strongly concave at inner side, slightly impressed near basal two-fifths in lateral view. Pronotum slightly longer than wide, slightly narrower than head at eye level; lacking lateral antebasal foveae. Elytra as long as wide, widest near apical two-thirds; lacking humeral calli; sutural stria barely visible in dorsal view. Abdomen with tergite 1 about 1.3 × longer than tergite 2; ventrite 2 unmodified; ventrite 6 unknown. Legs with protrochanters modified with long ventral seta, about twice of protrochanteral width, lacking ventral spine; protibiae and mesotibiae unmodified. Aedeagus unknown.

Comments: This species has an anomalous 9-segmented antennae (Figs. 37 B–C), which separates it from all other Eupines species. We did not dissect the singleton of this new species nor establish a subgenus for it until we can find the evidence that the two existing subgenera are monophyletic.

Distribution: North Island. ND.

Etymology: This specific epithet means ‘nine’ in Latin, referring to the nine-segmented antennae of this species.

Type material ( NZAC): Holotype. ♂, specimen entire, card-mounted: “ NEW ZEALAND, ND, Pukenui For- est, Taraire Ridge Loop, 12 Nov 2018, J. Shen // sifted leaf litter & rotten woods, 35°41'96''S, 174°15'90''E”.