Caledonogonus loebli, 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 : 52-53

Caledonogonus loebli sp. nov.

( Figs. 5 , 8,12 , 15, 16 )

Type material (38 specimens). Holotype: NEW CALEDONIA: ɗ, New Caledonia, Col des Roussettes, ravine, forest litter, 25.ix.1998, I. Löbl / [red label] HOLOTYPE Caledonogonus loebli sp. nov. P. Hl a vá č det. 2007, ( MHNG). Paratypes: NEW CALEDONIA: 10ɗɗ, 7ΨΨ, the same locality as holotype; 7ɗɗ, 10ΨΨ, 3 specimens: FM (HD) 78-256, NEW CALEDONIA: Col de Rousettes nr. Bourail, 500 m, VIII-7-1978, Leg.

S&J Peck, Berlese rainforest litter. All paratypes bear the following red label: PARATYPE Caledonogonus loebli sp. nov., P. Hlaváč det., 2007 (6ɗɗ, 4ΨΨ, 1 specimen: MHNG, 5ɗɗ, 8ΨΨ, 2 specimens: FMNH, 2ɗɗ, 2ΨΨ: QMBA, 3ɗɗ, 3ΨΨ: CPH).

Description. Body length 1.4–1.6 mm, shining, dark reddish-brown, with long golden setae except on disc of pronotum; elytra and first visible abdominal tergite (tergite IV), legs, maxillary palpi and apical antennomeres lighter, yellowish brown.

Head about as long as wide and slightly shorter than pronotum, pronotum widest in apical third; antenna ( Fig. 8 ) short and stout, scape about five times as long as pedicel, slightly shorter than funicule, antennomeres III–VI quadrate, VII–VIII transverse, three-segmented antennal club very clearly defined, antennomeres IX and X about equal in size, X about 1.5 times as wide as long, terminal antennomere pointed apically, about 1.7 times as long as wide.

Legs shorter, protrochanter with two minuscule spines, lateral one longer.

Aedeagus as in Figs. 15, 16 .

Remarks. Anagonus loebli is readily distinguished from its congener by smooth disc of pronotum and shorter terminal antennomere.

Biology. All specimens collected by Ivan Löbl were sifted from leaf litter in a humid ravine in tropical forest and extracted by Winkler-Mocsarski eclectors (Löbl, personal communication).

Etymology. The species is named after my friend Ivan Löbl (Geneva) who collected the holotype and some of the paratypes.

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.

FIGURES 13 – 20. Aedeagus of Tyrini, dorsal (13, 15, 17, 19) and lateral (14, 16, 18, 20) aspects. 13, 14 — Anagonus fracticornis Fauvel; 15, 16 — Caledonogonus loebli sp. nov.; 17, 18 — C. pilosus sp. nov. (parameres missing); 19, 20 — Paranagonus excavatus sp. nov. Scale bar 0.2 mm.