Anagonus breviscapus, 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 : 49-51

publication ID	https://doi.org/ 10.5281/zenodo.185787
DOI	https://doi.org/10.5281/zenodo.6215508
persistent identifier	https://treatment.plazi.org/id/03969B18-7A47-031E-BC86-22D1FC7FFD7A
treatment provided by	Plazi
scientific name	Anagonus breviscapus
status	sp. nov.

Treatment

Anagonus breviscapus View in CoL sp. nov.

( Figs. 3 View FIGURES 2 – 7 , 10 View FIGURES 8 – 12 )

Type material (ɗ). Holotype: NEW CALEDONIA: ɗ, New Caledonia, above Serraméa creek, leaf litter, 24.x.1998, I. Löbl / [red label], HOLOTYPE Anagonus breviscapus sp. nov., P. Hlaváč det., 2007 ( MHNG).

Description. Body length about 1.85 mm, shining, with sparse long erect golden setae, head and pronotum light brown, elytra, abdomen, maxillary palpi, antennae and legs lighter, yellowish brown.

Head 1.3 times as long as wide, with wide frontal rostrum; rostral apex with deep, elongate impression between antennal tubercles which are well-defined; eyes with about 10 facets; maxillary palpi ( Fig. 10 View FIGURES 8 – 12 ) long, segment I minuscule, II with weakly defined inner tooth, III pedunculate at base, lacking lateral protuberance and lacking wrinkled surface; antennae very long, reaching middle of abdomen, scape about 4 times as long as pedicel and about 1.4 times as long as terminal antennomere, about half length of funicule, antennomeres II–VIII elongate, club three-segmented, antennomeres IX and X about as long as wide, terminal antennomere pointed at apex, about twice as long as wide and about 2.8 times as long as X.

Pronotum slightly longer than wide, and 1.3 times as long as head, widest before middle, lateral foveae small, lacking setae.

Legs long, protrochanter with two spines; basal spine longer and more robustr than apical one, almost as long as single basal spine on profemora.

Abdomen 1.5 times longer than elytra, first visible tergite (tergite IV) 1.8 times as long as second (V).

Remarks. Anagonus breviscapus can be easily separated from both congeners by the short scape and by the first visible tergite (tergite IV) 1.8 times as long as second (tergite V). Adeagus was lost during the preparation.

An additional specimen, a female collected from Col des Roussettes by Ivan Löbl (MHNG), is very similar to A. breviscapus , but has the first visible tergite (tergite IV) much shorter than in the holotype of A. breviscapus , not more that 1.5 times as long as the second visible tergite (tergite V). Further, this female specimen has a much larger body, about 2.2 mm long. For the time being I decided not to name this specimen.

Biology. The holotype was sifted from leaf litter in a humid ravine in tropical forest and extracted by Winkler-Mocsarski eclectors (Löbl, personal communication).

Etymology. The name of the new species refers to its short scape.