Paussus drumonti Maruyama, 2014

Nagel, Peter, 2024, The Paussus (Scaphipaussus) lanxangensis species group of Indomalayan ant nest beetles (Coleoptera, Carabidae, Paussinae, Paussini) with description of a new species, Zootaxa 5501 (3), pp. 447-457 : 453

Paussus drumonti Maruyama, 2014 [DP 31 Mar 2014]

Female holotype only.

Type locality: Thailand, Na Haeo , Malaise trap, 22–29 v.2003, leg. P.Grootaert, Coll. IRScNB

Depository: I.R.Sc.N.B. Institut Royal des Sciences Naturelles de Belgique, Bruxelles.

BL 3.84 mm

The habitus of this species is unique for Paussus s.l. with regard to almost all body parts. The description of antennomere I (scape) does not indicate the presence of the anterolateral trichome brush. Although, Figs 1–3 show subapical structures that could be interpreted as small tubercles or a trichome brush (a character state normally present in species of the P. jousselinii group, Sg. Paussus ). The maxillary palpomere II (= third from last) is described as large, compressed, but the shape of the medial margin (straight, emarginate or convex) was not indicated. The illustration of the penultimate maxillary palpomere ( Maruyama 2014, fig. 2) does not indicate that it is “distinctly wider” than the terminal maxillary palpomere ( Robertson & Moore 2016). The terminal labial palpi are described as “slightly compressed, oblong oval with acute tip” ( Maruyama 2014). The pygidium is described with marginal trichome fringe absent. Most criteria are characteristic of Sg. Scaphipaussus .

Figures

FIGURE 1. Original labels (20 X 10 mm each) pinned with holotype specimen of P. agatae sp. nov..

FIGURE 2. Paussus agatae sp.n., female holotype, habitus, dorsal view with pygidium artificially shown at plan view (originally strongly declined). Femora and tibiae of right and left side are shown at broadest and narrowest view respectively. Scale 1 mm. Illustration: Armin Coray, Basel.

FIGURE 3. Paussus agatae sp. nov., female holotype, head, mouthparts, ventral view. Inset: Left maxillary palpomere II, ventral view, slightly distorted to show broadest view, with emarginate mesal margin and slightly convex outer margin. Scale 0.5 mm. Illustration:Armin Coray, Basel.