Abacetini, Chaudoir, 1873

Larochelle, Andre & Larivière, Marie-Claude, 2024, Synopsis of the genus Cerabilia Laporte de Castelnau in New Zealand (Coleoptera: Carabidae: Abacetini), Insecta Mundi 2024 (36), pp. 1-31 : 2-3

Tribe Abacetini

Description ( New Zealand). Body length 6.1–11.4 mm; not pedunculate. Head. Mandibles with setiferous puncture in scrobe. Labrum slightly emarginate anteriorly. Eyes present; two setiferous punctures inserted on inner side of each eye. Tempora inflated or not. Clypeus with a setiferous puncture on each side. Antennae filiform; segments 1–3 with a few setae, 4–11 densely pubescent; segments 3–10 with verticillate setae. Mentum: median tooth present; two small circular foveae and two setae present. Mentum-submentum suture present. Submentum with four setae. Ligula with two apical setae. Palpi: terminal segment obtuse or truncate apically; maxillary and palpal segments sparsely setulose; penultimate labial segment with two long setae on anterior margin. Thorax. Pronotum with a single setiferous puncture (anteriorly) or two setiferous punctures (anteriorly and posteriorly) on each side. Scutellum visible, projected behind elytral base. Prosternum glabrous apically, not compressed into a vertical ridge. Legs. Protibiae without outer apical prolongation; dorsal longitudinal groove present. Tarsi glabrous dorsally, with segments 1–3 of male protarsi strongly dilated and covered with two rows of ventral scales; claws entire ventrally; unguitractor plate invisible between claws. Elytra. Fused along suture (hindwings vestigial). Striae present, consisting of impressed lines. Stria 1 not recurrent apically. Scutellar striole present, joined to stria 1; angular base of stria 1 absent. Scutellar setiferous pore usually absent, rarely present at base of stria 2. Interval 3 with or without medial setiferous puncture. Umbilicate series with 12 to 16 setiferous punctures separated into two major groups, with or without 1 seta in between. Radial field without fine dense pubescence. Epipleura simple (without inner fold or plica) near apex. Abdomen. Apex invisible dorsally. Sterna IV–VI of both sexes with two long apical ambulatory setae. Sternum VII of male with two long apical ambulatory setae; sternum VII of female with four long apical ambulatory setae. Aedeagus. Lateral view ( Fig. 8–19 ): moderately or strongly arcuate, wide or slender; base with or without lobe or bead; apex subtriangular, with extreme tip usually narrow, very long, and curved downward. Dorsal view: symmetrical (ostium of membranous area dorsal). Right paramere larger, conchoid; left paramere slender, digitiform.

References. Larochelle and Larivière 2001: 40, 139–140 (as Platynini ; catalogue); Will 2011: 367 (as Loxandrini), 2015: 133 (as Abacetini ), 2020b: 165 (as Abacetini , Loxandrina).

Figures

Figures 1–13. Illustrations of Cerabilia morphology. 1–4) Microsculpture. 1) Granulate. 2) Isodiametric. 3) Moderately transverse. 4) Very transverse. 5) Head: frons with oblique strioles (os). 6–7) Tip of scutellum. 6) Slightly projected behind elytral base.7) Strongly projected. 8–13) Aedeagus, lateral.8) Cerabilia takaka new species. 9) C. kaihoka new species. 10) C. maori. 11) C. willi new species. 12) C. major. 13) C. motunau new species (apical half).

Figures 14–27.Aedeagus, lateral. 14) Cerabilia rugosa new species. 15) C. laevis new species. 16) C. rufipes. 17) C. aphela. 18) C. striatula. 19) C. oblonga. Aedeagus, dorsal view of apex.20) C.kaihoka new species.21) C. laevisnew species. 22) C. takaka new species. 23) C. rufipes. 24) C. aphela. 25) C. willi new species. 26) C. maori. 27) C. cordata new species.