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Fauna of New Zealand 69 - Landcare Research

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62<br />

Material examined. 83 specimens (AMNZ, CMNZ,<br />

JNNZ, LUNZ, MONZ, NZAC).<br />

Geographic distribution (Map p. 181). South Island:<br />

FD, SL (west), WD.<br />

Ecology. Lowland, montane, subalpine. Wet forests<br />

(beech, podocarp, broadleaf). Shaded ground; wet soil.<br />

Nocturnal; active at night on trees; hides during the day<br />

in and under logs. This species is xylophilous (associated<br />

with wood).<br />

Biology. Seasonality: October to March, May–June,<br />

August. Tenerals: February–March. Predacious (based on<br />

mouthpart morphology). Occasionally infested by mites.<br />

Dispersal power. Elytra fused in basal half. Subapterous.<br />

Moderate runner. Occasional climber (on trees). Vagility<br />

limited by flight incapacity.<br />

Remarks. This species is named after our good friend<br />

Phil Sirvid (Museum <strong>of</strong> <strong>New</strong> <strong>Zealand</strong> Te Papa Tongarewa,<br />

Wellington).<br />

Tarastethus sirvidi is morphologically close to T.<br />

southlandicus. In addition to diagnostic characters <strong>of</strong> the<br />

male genitalia T. sirvidi has the following distinguishing<br />

features: head, pronotum, elytra, and abdomen black;<br />

pronotum coarsely punctate across base, with laterobasal<br />

foveae deep and wide; elytra with striae deep, coarsely<br />

punctate and intervals slightly convex throughout; abdominal<br />

sterna punctate.<br />

Genus Trichopsida E new genus<br />

Figures 78–92, 123–140, 218–235; Maps p. 181–183<br />

Type species. Tropopterus oxygonus Broun, 1886, by present<br />

designation.<br />

Description. Body: length 3.2–8.4 mm; not pedunculate.<br />

Colour dark or pale. Dorsal surface mostly glabrous.<br />

Microsculpture present or absent. Iridescence absent on<br />

head, present or absent on pronotum and elytra. Metallic<br />

lustre absent. Head. Mandibles short to very long. Labrum<br />

truncate to moderately emarginate anteriorly; anterior marginal<br />

setae equidistant. Antennae submoniliform; segments<br />

1–3 glabrous, excluding apical setae (segment 2 densely<br />

pubescent in apical third and segment 3 along its entire<br />

length in T. simplex). Eyes reduced or normally developed,<br />

usually convex (rarely depressed or subdepressed); two<br />

supraorbital setiferous punctures on inner side <strong>of</strong> each<br />

eye. Interocular fovea absent. Tempora inflated. Mentum<br />

feebly depressed, not excavated laterally; median tooth<br />

usually acute apically (rarely rounded), usually slightly<br />

shorter than lateral lobes (rarely much shorter); outer side<br />

<strong>of</strong> lateral lobes slightly rounded. Ligula truncate, usually<br />

narrow apically (rarely wide). Paraglossae glabrous. Palpi:<br />

terminal segment fusiform, usually not elliptical (except in<br />

Larochelle & Larivière (2013): Carabidae (Insecta: Coleoptera)<br />

T. nitida), setulose; penultimate maxillary segment setulose.<br />

Thorax. Pronotum (Fig. 123–140) usually slightly<br />

to strongly transverse or cordate, rarely subquadrate or<br />

subrectangular; anterior bead incomplete (narrowly interrupted<br />

medially); a single setiferous puncture (anteriorly)<br />

or two punctures on each side; posterolateral angles usually<br />

obtuse or subrectangular, rarely acute and projecting<br />

laterally; laterobasal foveae usually present, shallow or<br />

deep, not sulcate; posterior bead present, complete or<br />

incomplete (narrowly interrupted medially); base usually<br />

narrower than apex, sometimes as wide. Scutellum partly<br />

visible, broad, inserted entirely between elytral bases.<br />

Metepisterna short, subquadrate. Legs. Tarsi glabrous<br />

dorsally, pubescent ventrally (segment 5 <strong>of</strong> metatarsi with<br />

two pairs <strong>of</strong> ventral setae); segment 4 <strong>of</strong> pro- and mesotarsi<br />

emarginate apically (cleft for less than half their length).<br />

Elytra. Convex or depressed; usually ovate or subovate,<br />

rarely elongate. Basal margin usually complete (interrupted<br />

medially in T. popei) and reaching level <strong>of</strong> stria<br />

1 (stria 3 in T. simplex). Shoulders normally developed,<br />

obtuse or rounded. Scutellar setiferous pore usually present,<br />

inserted at base <strong>of</strong> stria 1 or at junction <strong>of</strong> striae 1+2,<br />

rarely at base <strong>of</strong> stria 2. Scutellar striole usually present,<br />

short, uni- to tripunctate (sometimes impunctate). Striae<br />

present, complete or incomplete, punctate or impunctate;<br />

stria 3 without or with one to four setiferous punctures;<br />

stria 5 without setiferous punctures. Interval 8 carinate<br />

apically. Umbilicate series separated into two major<br />

groups (7+6 setiferous punctures), with posterior group<br />

continuous. Sutural apices usually angular, sometimes<br />

angular-rounded. Abdomen. Sterna usually impunctate<br />

and unwrinkled. Last visible sternum (sternum VII): male<br />

usually with two or four apical ambulatory setae (six in T.<br />

simplex); female usually with four apical setae (six in T.<br />

nitida and T. simplex) and two medial (sometimes four)<br />

ambulatory setae. Aedeagus. Lateral view (Fig. 78–92):<br />

slightly to strongly arcuate; apex narrow or moderately<br />

wide, projecting or not ventrally. Dorsal view: asymmetrical<br />

(ostium deflected to the left or to the right); apex either<br />

straight or deflected to the left or to the right. Parameres.<br />

Left paramere elongate, glabrous or setulose (with a few<br />

short setae at apex); right paramere glabrous or setulose<br />

(with a few short setae at apex or numerous short ventral<br />

setae in apical half).<br />

References. Larochelle & Larivière, 2001: 65–68 (as<br />

Molopsida, in part; catalogue), 2007a: 38 (as Molopsida,<br />

in part; description, ecology, geographic distribution,<br />

references).<br />

Remarks. The generic name is derived from the Greek<br />

noun Tricho-, hair (Brown, 1985) and the suffix -psida,<br />

from the generic name Molopsida. The morphological<br />

characters unifying species <strong>of</strong> Trichopsida are: terminal

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