Fauna of New Zealand 69 - Landcare Research
Fauna of New Zealand 69 - Landcare Research
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