Euconnus (Napochus) pisoniae Franz

Jałoszyński, Paweł, 2015, Taxonomy of ' Euconnus complex'. Part III. Morphology of Euconnus subgenus Napochus and revision of the Australian species (Coleoptera, Staphylinidae, Scydmaeninae), Zootaxa 3925 (1), pp. 1-24 : 15-16

Euconnus (Napochus) pisoniae Franz

( Figs. 25, 27 , 39–40, 59)

Euconnus (Napochus) pisoniae Franz, 1975: 161 , Fig. 137a, b.

Type material studied. Holotype: AUSTRALIA (Queensland): ♂, four labels ( Fig. 27 ): "Trapped by sticky seeds / of Pisonia brunnoniana / Cairns dist.: F. P Dodd" [white, printed], " Euconnus / ( Napochus ) / pisoniae m. / det. H. Franz" [white, handwritten and printed], " Typus " [red, handwritten], " SAMA Database / No. 25-036981" [white, printed] ( SAM).

Additional material studied (4 ♂♂). 1 ♂, Queensland, 11.51S, 142.38E, 12 km SSE Heathlands, 1.- 21.iii.1992, Malaise trap in closed forest, P. Feeney leg.; 2 ♂♂, Queensland, 11.51S, 142.38E, 12 km SSE Heathlands, 26.i. - 29.ii.1992, Malaise trap in closed forest, P. Feeney leg.; 1 ♂, Queensland, 16.05S, 145.27E, 30 m, 2 km WSW Cape Tribulation, 1.-28.ii.1996, flight intercept trap, L. Umback leg. (specimens in ANIC and cPJ).

Diagnosis. Large species, BL 1.50–1.55 mm; aedeagus in ventral view with moderately broad ventral apical projection narrowing from submedian area to apex and reaching apex of dorsal apical projection, internal lateral projections slender, shorter than ventral apical projection and curved mesally; external lateral projections broad and rounded; in lateral view ventral apical projection slightly and dorsal apical projection strongly curved dorsally; parameres with only slightly expanded apices.

Description. Body of male ( Fig. 25 ) strongly convex but with slightly flattened elytral dorsum, elongate, with long appendages, BL 1.50–1.55 mm (mean 1.52 mm); glossy, uniformly light brown; vestiture slightly lighter than cuticle.

Head rhomboidal, broadest at eyes, HL 0.30–0.31 mm (mean 0.30 mm), HW 0.30–0.33 mm (mean 0.32 mm); vertex and frons confluent, convex; supraantennal tubercles feebly marked; eyes large, strongly convex and coarsely faceted. Punctures on vertex and frons fine and inconspicuous; setae long, dense, suberect to erect, additionally tempora and vertex with long and dense bristles directed posteriorly. Antennae short, AnL 0.60–0.63 mm (mean 0.62 mm); antennomeres I–II elongate, III–VII slightly transverse and VIII–X strongly transverse, antennomere XI slightly longer than wide.

Pronotum in dorsal view subtrapezoidal, broadest at base and strongly narrowing anteriorly, PL 0.38 mm, PW 0.40; antebasal pits and transverse groove distinct. Punctures on pronotal disc fine and inconspicuous; setae fine and obscured by dense, long and thick bristles (especially on sides).

Elytra suboval and slightly flattened, broadest near middle, EL 0.83–0.88 mm (mean 0.84 mm), EW 0.65–0.68 mm (mean 0.67 mm), EI 1.24–1.27; basal impressions shallow but distinct, humeri elongate; apices separately rounded. Punctures on elytral disc fine and shallow; setae long, sparse and strongly erect. Hind wings welldeveloped, twice as long as elytra.

Legs long and slender; unmodified.

Aedeagus (Figs. 39–40) stout, AeL 0.24 mm, in ventral view with indistinctly delimited and short apical portion; ventral apical projection moderately broad, subtriangular, gradually narrowing distally but slightly constricted near base, in ventral view reaching apex of dorsal apical projection; only dorsal apical projection strongly curved dorsally; internal lateral projections long, slender, each with broad base and narrow distal portion, distinctly curved mesodistally; external lateral projections broad and rounded. Parameres broad, in lateral view with slightly broadened apical parts, each with 3 long apical setae and several short and thin subapical setae.

Female. Unknown or indistinguishable from E. palmwoodianus (see remarks for the latter species).

Distribution. N Queensland ( Fig. 59 ).

Remarks. The aedeagus illustrated by Franz (1975: Fig. 137a, b) is similar to that found in the holotype only in lateral view, but rather dissimilar in the dorsal view, in which the median lobe and internal sclerotized structures have in fact different shape, and there are no asymmetrical, elongate sclerites that were sketched by Franz.

Figures

FIGURES 24 – 34. Napochus of Australia; dorsal habitus (24 – 25, 28 – 34) and original labels of holotypes (26 – 27). Euconnus palmwoodianus (Franz) (24, 26), E. pisoniae Franz (25, 27), E. setiphallus sp. n. (28), E. yadhaigana sp. n. (29), E. microlaminatus sp. n. (30), E. feeneyi feeneyi sp. n. (31, 32), E. feeneyi parallelilaminatus ssp. n. (33, 34).

FIGURES 57 – 64. Distribution of Napochus in Australia. Euconnus palmwoodianus (Franz) (57, 58), E. pisoniae Franz (59), E. setiphallus sp. n. (60), E. yadhaigana sp. n. (61), E. microlaminatus sp. n. (62), E. feeneyi feeneyi sp. n. (63), E. feeneyi parallelilaminatus ssp. n. (64).