Fauna of New Zealand 69 - Landcare Research

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Biology. Seasonality: October to June, August. Tenerals:
October, January, March. Predacious (based on mouthpart
morphology).
Dispersal power. Elytra fused basally along the suture.
Subapterous. Moderate runner. Vagility limited by flight
incapacity.
Reference. Larochelle & Larivière, 2001: 67 (biology,
dispersal power, ecology, geographic distribution).
Remark. Examination of the holotype of Tarastethus cinctus
revealed it to be conspecific with Trichopsida oxygona.
Trichopsida optata (Broun, 1917) E new combination
Figures 129, 224; Map p. 182
Tarastethus optatus Broun, 1917: 369. Holotype: female
(BMNH) labelled “Type (circular red-bordered label;
typed) / 3815- (hand-written) / New Zealand. Broun Coll.
Brit. Mus. 1922-482. (white label with red horizontal line;
typed) / Mount Dick. 17-3-1914. (hand-written) / Tarastethus
optatus-[female symbol]- (hand-written).” Condition:
Good (terminal segment of right antenna missing).
Molopsida optata: Britton, 1940: 277.
Description. Body: length 5.6–5.9 mm. Head, pronotum,
elytra brownish black; sides of pronotum dark or somewhat
paler anterolaterally; sides of elytra narrowly pale
yellowish; abdomen dark brownish; antennae, palpi, and
femora pale red; tibiae and tarsi infuscate. Microsculpture
very transverse (with microlines), feeble on head
and pronotum, strong on elytra. Iridescence absent on
head and pronotum, strong on elytra. Very shiny. Head.
Impunctate and unwrinkled dorsally (as in T. oxygona),
much narrower across eyes than pronotal apex. Mandibles
short. Labrum moderately transverse and emarginate
anteriorly. Antennae: segment 1 (scape) moderately long,
about 1.5× longer than its maximum width; segments 1–3
glabrous (excluding apical setae). Frontal furrows wide,
rather deep. Eyes normally developed, moderately large,
slightly convex. Tempora convex, moderately long (about
half as long as eyes). Mentum: medial tooth acute apically,
slightly shorter than lateral lobes. Ligula narrow apically.
Paraglossae membranous, prominent, much longer than
ligula. Palpi: terminal segment fusiform, not elliptical,
sparsely setulose; penultimate maxillary segment apically
setulose. Thorax. Pronotum (Fig. 129) moderately convex,
finely punctate across base, feebly wrinkled along median
longitudinal impression, strongly transverse, strongly
cordate; apex rather straight; anterolateral angles poorly
developed, obtusely rounded; sides strongly rounded
anteriorly, oblique and slightly sinuate posteriorly; lateral
beads narrow; lateral depressions absent; a single setiferous
puncture on each side (anteriorly), situated just in front
of middle and touching lateral bead; posterolateral angles
Larochelle & Larivière (2013): Carabidae (Insecta: Coleoptera)
obtuse, denticulate; laterobasal foveae well defined, finely
punctate, shallow, narrow, elongate medially; posterior
bead complete; base emarginate medially, slightly oblique
laterally, slightly wider than apex, moderately narrower
than elytral base. Prosternum impunctate, unwrinkled.
Proepisterna impunctate, unwrinkled. Metepisterna impunctate.
Elytra. Moderately convex, subovate, widest
about middle. Basal margin complete. Shoulders obtuse,
not denticulate. Sides moderated rounded. Scutellar setiferous
pore inserted at junction of striae 1+2. Scutellar striole
barely visible, almost impunctate. Striae mostly complete
(striae 6–7 obsolete basally), shallow, finely punctate; stria
3 with two small setiferous punctures. Intervals depressed.
Apices angular-rounded. Abdomen. Sterna impunctate,
unwrinkled. Last visible sternum (sternum VII): male
unknown; female with four to six apical and three to five
medial ambulatory setae. Aedeagus and Parameres.
Male unknown.
Material examined. Six specimens (BMNH, NZAC).
Geographic distribution (Map p. 182). South Island:
OL─Mount Dick. North Mavora Lake. South Mavora
Lake.
Ecology. Lowland (hills), subalpine. Wet forests (beech).
Shaded ground; mossy soil. Probably nocturnal and hiding
during the day in moss. The species is possibly epigean
(living on the surface of the ground). Four specimens were
collected by pit trapping.
Biology. Seasonality: January, March. Predacious (based
on mouthpart morphology).
Dispersal power. Elytra fused in basal half. Subapterous.
Moderate runner. Vagility limited by flight incapacity.
Trichopsida erwini E new species
Figures 84, 130, 225; Map p. 181
Trichopsida erwini Larochelle & Larivière, new species. Holotype:
male (NZAC) labelled “Mt Domett NN 1463m 1 Dec
71 J.S. Dugdale (typed) / mat plants (typed) / HOLOTYPE
[male symbol] Trichopsida erwini Larochelle & Larivière,
2013 (red label; typed).” Paratypes: one male (NZAC),
three females (LUNZ, MONZ, NZAC) from the same locality
as the holotype, bearing blue paratype labels.
Description. Body: length 3.2–5.2 mm. Head reddish;
pronotum dark brown medially; elytra dark brown, with
sides and apex brownish red; abdomen mostly yellowish,
brownish black medially; antennae, palpi, and legs entirely
pale yellowish. Microsculpture absent. Iridescence absent.
Very shiny. Head. Impunctate and sparsely wrinkled
dorsally, much narrower across eyes than pronotal apex.
Mandibles moderately long. Labrum slightly transverse,
truncate or slightly emarginate anteriorly. Antennae: segment
1 (scape) moderately long, about 1.5× longer than its