' The curse of Horaeomorphus ': taxonomy of misplaced Australian Cyrtoscydmini (Coleoptera: Staphylinidae: Scydmaeninae)
Author
Jałoszyński, Paweł
text
Zootaxa
2014
3828
1
1
76
journal article
36382
10.11646/zootaxa.3828.1.1
8c1cda9b-0d82-41f3-a1c1-d8eb574a1ba7
1175-5326
286513
B2FEAE60-7E51-45FA-A38F-930A084A5AAA
Scydmaenozila mallacootana
sp. n.
(
Figs. 74
,
85–86
,
93–94
,
195
c)
Type
material studied.
Holotype
:
AUSTRALIA
:
♂: four labels: "
AUSTRALIA
/ Victoria / Mallacoota N.P. /
26 May 1978
/ S. & J. Peck" [white, printed], "mushroom / litter' [white, printed], "Aust. Nat. / Ins. Coll." [green, printed], "
SCYDMAENOZILA
/
mallacootana
m. / det. P. Jałoszyński, 2014 /
HOLOTYPUS
" [red, printed] (
ANIC
).
Diagnosis.
Male and female: body uniformly brown. Male: aedeagus slender, in ventral view with broadly rounded apex; apical part of median lobe abruptly demarcated.
Description.
Body of male (
Fig. 74
) strongly convex, elongate and slender, with long appendages, BL
2.75 mm
; cuticle glossy, dark brown with reddish hue, elytra slightly lighter than head and pronotum, vestiture dark brown.
Head (
Fig. 74
) broadest at eyes, HL
0.50 mm
, HW
0.60 mm
; tempora longer than eyes, strongly curved posteromesally; vertex weakly convex; frons subtrapezoidal. Eyes large and strongly projecting laterally from the head silhouette, finely faceted. Punctures on head dorsum fine, separated by spaces 1.5–
2
x as wide as diameters of punctures; setae on frons and anterior portion of vertex short, sparse and suberect, tempora and posterior portion of vertex densely covered with long bristles directed posteriorly and posterolaterally. Antennae (
Fig. 74
) slender, AnL 1.65; antennomeres I–VII distinctly elongate, VIII slightly longer than wide, IX–X each about as long as broad, XI as long as IX–X together, 2.5x as long as broad, pointed.
Pronotum (
Fig. 74
) in dorsal view strongly elongate, broadest near anterior third, PL
0.80 mm
, PW
0.63 mm
; anterior and lateral margins in anterior half rounded; sides slightly concave in posterior third; posterior margin distinctly bisinuate; base of pronotum with two pairs of large and deep pits, additionally with a pair of shallow but distinct impressions located dorsolaterally. Punctures on pronotal disc fine and inconspicuous; entire dorsal and lateral surface of pronotum covered with moderately dense bristles, dorsally with admixture of thin setae.
Elytra (
Fig. 74
) slightly rhomboidal, broadest near middle, EL
1.45 mm
, EW
1.05 mm
, EI 1.38; basal impressions short but distinct; elytral apices separately rounded. Punctures on elytral disc fine but slightly more distinct than those on pronotum, separated by spaces 2–
3
x as wide as diameters of punctures; setae long, curved, sparse and erect.
Hind
wings well developed, about twice as long as elytra.
Legs (
Fig. 74
) long and slender, without modifications.
Aedeagus (
Figs. 85–86
,
93–94
) elongate and relatively slender; AeL
0.63 mm
; in ventral view short apical part abruptly demarcated, with broadly and weakly rounded apical margin; in lateral view apical part subtriangular and sharply demarcated from ventral wall; internal armature complicated, with submedian complex of elongate and darkly sclerotized structures and subapical finely denticulate lateral lobes of internal sac; parameres long and slender, with distinctly broadened apices.
Female
. Unknown.
Distribution
(
Fig. 195
c). South-eastern
Australia
: Victoria.
Etymology.
Locotypical, after the Mallacoota National Park, where this species occurs.
Remarks.
Scydmaenozila mallacootana
has the aedeagus very similar to that of
Scydmaenozila macrosticta
; differences can be seen only in the arrangement of internal structures. However, externally these species are distinctly different:
Scydmaenozila macrosticta
has the bicolorous pattern on elytra, while
Scydmaenozila mallacootana
is uniformly brown; also the shape of the pronotum and elytra is different (
Fig. 72
vs. 74).