Scydmaenilla (Zeanilla) newtoni (Franz),

Jałoszyński, Paweł, 2015, Revision of the genus Stenichnaphes Franz in New Zealand (Coleoptera: Staphylinidae: Scydmaeninae), Zootaxa 3915 (2), pp. 250-262: 259-261

publication ID

publication LSID

persistent identifier

treatment provided by


scientific name

Scydmaenilla (Zeanilla) newtoni (Franz)

comb. n.

Scydmaenilla (Zeanilla) newtoni (Franz)  , comb. n.

( Figs. 3, 6View FIGURES 1 – 6, 18 –23View FIGURES 18 – 23, 26View FIGURES 24 – 26)

Stenichnaphes newtoni Franz, 1986: 197  , Fig. 1View FIGURES 1 – 6.

Type material. Holotype: NEW ZEALAND: ♂, five labels ( Fig. 6View FIGURES 1 – 6): " NEW ZEALAND: MB / Pelorus Bridge / Scenic reserve, 60 m / 15.xii. 1984 - 4.i. 1985 / hdwd.-podocarp forest / A.Newton/M.Thayer 711 " [white, printed], "window / trap" [white, printed], " Stenichnaphes  / newtoni  m. / det.H.Franz" [white, handwritten and printed], " Holotypus " [red, handwritten], and white printed NZAC catalogue number (04070025) and QR code ( NZAC).

Additional material studied (4 exs): 1 ♂, New Zealand, Lynfield, 1981, Salix fragilis  wood mould, leg. G. Kuschel; 1 ♀, New Zealand, Napier, 22.x. 1984, pohutukawa [i.e., Metresideros excelsa  ], leg. C.F. Butcher; 1 ♀, New Zealand, Bethells, Matuku Res., 1.v.- 28.ix. 1988, Malaise trap on tree platform; 1 ♀, New Zealand, Poor Knights Is., Tawhiti Rahi, 7.xii. 1980, sifted litter and decayed wood, leg. G. Kuschel (specimens in NZAC and cPJ).

Revised diagnosis. This is the only species of Zeanilla and can be identified on the basis of subgeneric diagnostic characters (first of all a pair of long lateral pronotal furrows) and aedeagus with a complicated symmetrical system of elongate and pointed sclerites projecting from ostium.

Redescription. Body of male ( Fig. 3View FIGURES 1 – 6) convex, reddish-brown, covered with light brown vestiture; BL 1.25–1.38 mm.

Head ( Figs. 3View FIGURES 1 – 6, 18View FIGURES 18 – 23) broadest at large, strongly convex and moderately coarsely faceted eyes, HL 0.20 mm, HW 0.25 mm; tempora in dorsal view distinct, as long as only 1 / 3 of length of eye; vertex and frons confluent and weakly convex; supraantennal tubercles feebly marked, anterior margin of frons subtriangular. Frons and vertex appear impunctate under magnification 80 ×; setae long and sparse, suberect to erect. Antennae slender, AnL 0.58–0.60 mm; antennomeres I –II distinctly elongate, III –IV slightly elongate, V –VI about as long as broad or barely discernibly transverse, VII –X distinctly transverse, XI about 1.5 × as long as broad, with rounded apex.

Pronotum ( Figs. 3View FIGURES 1 – 6, 19View FIGURES 18 – 23) distinctly elongate, broadest at base; PL 0.30–0.33 mm, PW 0.28–0.29 mm. Anterior and lateral margins in anterior third rounded; sides slightly concave in posterior third; posterior margin arcuate; lateral longitudinal furrows, antebasal transverse groove and lateral pits distinct. Punctures on pronotal disc as inconspicuous as those on head; setae sparse, long and erect.

Elytra ( Fig. 3View FIGURES 1 – 6) distinctly more convex than pronotum, oval, broadest distinctly anterior to middle; EL 0.75–0.85 mm, EW 0.53–0.58 mm, EI 1.43–1.48; humeral calli distinct and elongate, basal impression on each elytron short but distinct; apices separately rounded, elytra slightly impressed along suture near anterior third. Punctures on elytra slightly more distinct than those on pronotum but still barely discernible under magnification 80 ×; setae sparse, much longer than those on pronotum, erect. Hind wings well developed.

Legs ( Fig. 3View FIGURES 1 – 6) long and slender; all tibiae nearly straight.

Aedeagus ( Figs. 22–23View FIGURES 18 – 23) stout and thin-walled; AeL 0.23–0.25 mm; median lobe and endophallus symmetrical, apical projections short; endophallic structures complicated and darkly sclerotized, with subapical group of several long and pointed sclerites directed distally and lateral groups of submedian dense and thin sclerites directed distomesally. Parameres slender, each with two apical setae.

Female. Externally indistinguishable from male. BL 1.25–1.26 mm; HL 0.18 mm, HW 0.25 mm, AnL 0.53 mm; PL 0.30–0.31 mm, PW 0.28 mm; EL 0.78 mm, EW 0.55–0.63 mm, EI 1.24–1.41.

Distribution. North Island (including Poor Knights Islands) and the northern tip of South Island, New Zealand ( Fig. 26View FIGURES 24 – 26).


University of Newcastle


New Zealand Arthropod Collection














Scydmaenilla (Zeanilla) newtoni (Franz)

Jałoszyński, Paweł 2015

Stenichnaphes newtoni

Franz 1986: 197