Fauna of New Zealand 69 - Landcare Research

Fauna of New Zealand 69 47
Selenochilus hutchisonae E new species
Figures 65, 108, 203; Map p. 178
Selenochilus hutchisonae Larochelle & Larivière, new species.
Holotype: male (NZAC) labelled “NEW ZEALAND WN
Lake Papaitonga Scenic Res [=Reserve] Levin 28 Feb 2000
M Hutchison (typed) / Wet podocarp-broadleaf forest Pit
traps (typed) / C4 (7) (hand-written) / HOLOTYPE [male
symbol] Selenochilus hutchisonae Larochelle & Larivière,
2013 (red label; typed).” Paratypes: three males (LUNZ,
MONZ, NZAC) two females (NZAC) from the same locality
as the holotype, bearing blue paratype labels.
Description. Body: length 5.1–6.5 mm (usually 6.0 mm
and more). Head, pronotum, elytra, and abdomen black;
antennae, palpi, and tarsi reddish; femora and tibiae black
or piceous black. Microsculpture absent on head and
pronotum, moderately transverse, feeble in basal half of
elytra. Iridescence absent. Very shiny. Head. Coarsely
punctate in frontal furrows, unwrinkled dorsally, about as
wide across eyes as pronotal apex. Frontal furrows wide,
shallow. Eyes normally developed, moderately large, moderately
convex. Tempora inflated, moderately long (about
one-fourth as long as eyes). Paraglossae membranous,
prominent, much longer than ligula. Thorax. Pronotum
(Fig. 108) moderately convex, finely punctate across
base, wrinkled along median longitudinal impression or
unwrinkled, slightly transverse, moderately cordate; apex
subtruncate; anterior bead incomplete, broadly interrupted
medially; anterolateral angles poorly developed, obtusely
rounded; sides moderately rounded anteriorly, moderately
sinuate posteriorly; lateral beads narrow; lateral depressions
absent; each anterolateral setiferous puncture situated
well in front of middle and touching lateral bead; basal
constriction long; posterolateral angles rectangular; base
subtruncate, subdepressed, slightly narrower than elytral
base. Prosternum finely punctate, unwrinkled. Proepisterna
finely punctate, unwrinkled. Metepisterna coarsely
punctate. Elytra. Moderately convex, oblong, widest about
middle. Basal margin reaching level of stria 4. Shoulders
denticulate. Sides moderately rounded. Scutellar setiferous
pore present. Striae complete, deep, coarsely punctate.
Intervals moderately convex. Abdomen. Sterna coarsely
punctate, unwrinkled. Aedeagus. Lateral view (Fig. 65):
strongly arcuate; dorsobasal blade present, wide (narrow
in S. ruficornis); apex narrow, moderately projecting ventrally.
Dorsal view: apex truncate-rounded.
Material examined. 45 specimens (AMNZ, JNNZ,
NZAC).
Geographic distribution (Map p. 178). North Island:
WI–Ballance Reserve (Manawatu). Takapari Road
(Manawatu). Manawatu Gorge Scenic Reserve. WN–Lake
Papaitonga Scenic Reserve (Levin). Mangahao No 1
Reservoir (Tararua Forest Park). Lower Waingawa Gorge
(Tararua Forest Park). Nikau Reserve (Paraparaumu).
Ecology. Lowland. Wet forests (broadleaf, podocarp).
Shaded ground; wet soil. Nocturnal; hides during the day
under stones.
Biology. Seasonality: September–June, August. Predacious
(based on mouthpart morphology).
Dispersal power. Elytra fused along the suture. Subapterous.
Moderate runner. Vagility limited by flight incapacity.
Remarks. This species is named after Melissa Hutchison
(Christchurch) who collected the type series. Selenochilus
hutchisonae is morphologically close to S. omalleyi. In
addition to diagnostic characters of the male genitalia S.
hutchisonae has the following distinguishing features:
femora and tibiae black or piceous black; pronotum slightly
transverse, with sides moderately rounded anteriorly
and posterolateral angles rectangular; elytra moderately
convex, with moderately rounded sides and moderately
transverse microsculpture in basal half.
Selenochilus omalleyi E new species
Figures 63, 109, 204; Map p. 178
Selenochilus omalleyi Larochelle & Larivière, new species.
Holotype: male (NZAC) labelled “NEW ZEALAND HB
Kaweka FP [=Forest Park], Kaweka Flats tk [=track] (N
[=North of] Boulder Stream tk Jct [=track junction]) 1000m
3.III. 1996 Larivière, Larochelle (typed) / Moist Mtn Beech
for. [=Mountain Beech forest]: Under logs & big fallen
branches (typed) / HOLOTYPE [male symbol] Selenochilus
omalleyi Larochelle & Larivière, 2013 (red label;
typed).” Paratypes: three males (LUNZ, MONZ, NZAC),
one female (NZAC) from the same locality as the holotype,
bearing blue paratype labels.
Description. Body: length 6.7–7.6 mm. Head, pronotum,
elytra, and abdomen black; antennae, palpi, and
tarsi reddish; femora and tibiae pale, infuscate reddish.
Microsculpture absent on head and pronotum, strong and
moderately transverse in apical third of elytra. Iridescence
absent. Very shiny. Head. Coarsely punctate in frontal
furrows, unwrinkled dorsally, about as wide across eyes
as pronotal apex. Frontal furrows wide, shallow. Eyes
normally developed, moderately large, moderately convex.
Tempora inflated, moderately long (about one-fourth
as long as eyes). Paraglossae membranous, prominent,
much longer than ligula. Thorax. Pronotum (Fig. 109)
moderately convex, finely punctate across base, wrinkled
on disc, moderately transverse, moderately cordate; apex
subtruncate; anterior bead incomplete, broadly interrupted
medially; anterolateral angles poorly developed, obtusely
rounded; sides strongly rounded anteriorly, moderately
sinuate posteriorly; lateral beads narrow; lateral depressions
absent; each anterolateral setiferous puncture situated