Anagonus spinipalpis, Č, Peter Hlavá, 2009

Č, Peter Hlavá, 2009, The Pselaphinae (Coleoptera: Staphylinidae) of New Caledonia and Loyalty Islands. II. Revision of the tribe Tyrini Reitter, 1882, Zootaxa 2010, pp. 46-56 : 51

Anagonus spinipalpis sp. nov.

( Figs. 4 , 11 )

Type material (2&&). Holotype: NEW CALEDONIA: &, NEW CALEDONIA (S), 22o05’S 166o37’E, 260–280 m, Haute Rivière Bleue, Sentier de Kaoris, virgin humid forest, sifted, 26.01.2004, leg. M. Wanat / [red label] HOLOTYPE Anagonus spinipalpis sp. nov., P. Hlaváč det., 2007 ( MNHW). Paratype: NEW CALEDONIA: &, NEW CALEDONIA, Rivière Bleue, Mois de Mai / QN Berlesate 1089, 22o06’S 166o38’E, rainforest, 800 m, sieved litter / [red label] PARATYPE Anagonus spinipalpis sp. nov., P. Hlaváč det., 2007 ( QMBA).

Description. Body length about 1.8 mm, shining, with sparse, erect golden setae, uniformly coloured dark brown to almost black, maxillary palpi much lighter.

Head about as long as wide, with narrow frontal rostrum; rostral apex with deep elongate impression between antennal tubercles which are well-defined; eyes somewhat small, with about 9 facets; maxillary palpi long ( Fig. 11 ), segment I minuscule, II with small inner tooth, III pedunculate at base, with large lateral spine, lacking wrinkled surface; antennae very long, reaching middle of abdomen, scape about seven times as long as pedicel and 2.15 times as long as terminal antennomere, slightly shorter than funicule, antennomeres II–VII elongate, club four-segmented, VIII rhombic, slightly longer than wide, IX and X about as long as wide, terminal antennomere pointed at apex, about 2.7 times as long as wide and about four times as long as X.

Pronotum about as long as wide, 1.15 times as long as head, widest before middle, each lateral fovea prolonged anteriorly by deep sulcus.

Legs long, protrochanter and profemora with long, subequal and outwardly curved basal spines.

Abdomen 1.4 times as long as elytra, first visible tergite (tergite IV) slightly longer than second (tergite V).

Remarks. Anagonus spinipalpis is readily distinguished from its congeners by its entirely dark brown colour, and the presence of a lateral protuberance on the third maxillary palpus as well as with lateral fovea prolonged anteriorly by deep sulcus

Biology. Both specimens were sifted in virgin humid forest and extracted by Berlese.

Etymology. The name of the new species refers to the presence of the lateral protuberance on the third segment of maxillary palpi.

Figures

FIGURES 2 – 7. Habitus photos of Tyrini. 2 — Anagonus fracticornis Fauvel; 3 — A. breviscapus sp. nov.; 4 — A. spinipalpis sp. nov.; 5 — Caledonogonus loebli sp. nov.; 6 — C. pilosus sp. nov.; 7 — Paranagonus excavatus sp. nov.

FIGURES 8 – 12. Antenna (8) and maxillary palpus (9 – 12) of Tyrini. 8, 12 — Caledonogonus loebli sp. nov.; 9 — Anagonus fracticornis Fauvel; 10 — A. breviscapus sp. nov.; 11 — A. spinipalpis sp. nov. Scale bar 0.2 mm.