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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56<br />
and convex. Tempora oblique, moderately long (about 2/3<br />
as long as eyes). Paraglossae prominent, much longer than<br />
ligula. Thorax. Pronotum (Fig. 116) moderately convex,<br />
impunctate, strongly wrinkled between laterobasal foveae;<br />
apex strongly concave; anterolateral angles moderately<br />
developed, obtusely rounded; sides strongly rounded anteriorly,<br />
strongly sinuate posteriorly; lateral beads <strong>of</strong> similar<br />
width from apex to base; lateral depressions widening<br />
posteriorly; each anterolateral setiferous puncture situated<br />
just in front <strong>of</strong> middle and not touching lateral bead;<br />
posterolateral angles not denticulate; laterobasal foveae<br />
well defined, impunctate, wide, round; base emarginate<br />
medially, strongly oblique laterally, about as wide as apex<br />
and elytral base. Prosternum impunctate, unwrinkled.<br />
Proepisterna punctate, unwrinkled. Metepisterna coarsely<br />
and sparsely punctate. Elytra. Widest in front <strong>of</strong> middle.<br />
Shoulders denticulate. Sides moderately rounded. Striae<br />
moderately deep. Intervals moderately convex.<br />
Material examined. Five specimens (JNNZ, LUNZ,<br />
NZAC).<br />
Geographic distribution (Map p. 177). South Island:<br />
WD─Fox Glacier (Chancellor area, Castle Rocks Hut).<br />
Ecology. Subalpine. A moraine and a tussock/scrub area<br />
species. Open ground; sparsely vegetated soil. Nocturnal;<br />
sheltering during the day under stones. Biology. Seasonality:<br />
January, March. Predacious (based on mouthpart<br />
morphology).<br />
Dispersal power. Elytra fused basally along the suture.<br />
Subapterous. Moderate runner (based on leg morphology).<br />
Regular vegetation-climber (based on bilobed penultimate<br />
segment <strong>of</strong> pro- and mesotarsi). Vagility limited by flight<br />
incapacity.<br />
Reference. Liebherr, 2011b: 303–308 (ecology, geographic<br />
distribution, taxonomy).<br />
Genus Tarastethus Sharp, 1883 E reinstated<br />
Figures 72–77, 117–122, 212–217; Maps p. 180–181<br />
Tarastethus Sharp, 1883: 23. Synonymised with Molopsida by<br />
Britton, 1940: 477. Type species. Tarastethus puncticollis<br />
Sharp, 1883, designated by Lorenz, 1998: 170. Reinstated<br />
Description. Body: length 4.3–6.6 mm; not pedunculate.<br />
Colour dark or pale. Dorsal surface mostly glabrous. Microsculpture<br />
absent. Iridescence absent. Metallic lustre absent.<br />
Head. Mandibles moderately long. Labrum truncate<br />
to slightly emarginate anteriorly; anterior marginal setae<br />
equidistant. Antennae submoniliform; segments 1–3 glabrous<br />
(excluding apical setae). Eyes normally developed,<br />
convex; usually two supraorbital setiferous punctures on<br />
inner side <strong>of</strong> each eye, rarely a single puncture (anterior<br />
one missing in T. alpinalis). Interocular fovea present or<br />
Larochelle & Larivière (2013): Carabidae (Insecta: Coleoptera)<br />
absent. Tempora inflated. Mentum feebly depressed, not<br />
excavated laterally; median tooth acute apically, moderately<br />
or slightly shorter than lateral lobes; outer side <strong>of</strong><br />
lateral lobes slightly rounded. Ligula truncate and narrow<br />
apically. Paraglossae glabrous. Palpi: terminal segment<br />
fusiform, not elliptical, glabrous; penultimate maxillary<br />
segment glabrous. Thorax. Pronotum (Fig. 117–122)<br />
moderately transverse, slightly to strongly cordate; anterior<br />
bead incomplete (broadly interrupted medially); two<br />
setiferous punctures on each side; posterolateral angles<br />
usually subrectangular (acute and projecting laterally in<br />
T. southlandicus); laterobasal foveae present, usually deep<br />
(shallow in T. southlandicus), not sulcate; posterior bead<br />
absent; base about as wide as to much wider than apex.<br />
Scutellum partly visible, broad, inserted entirely between<br />
elytral bases. Metepisterna short, subquadrate. Legs.<br />
Tarsi glabrous dorsally, pubescent ventrally (segment 5 <strong>of</strong><br />
metatarsi with a single pair <strong>of</strong> ventral setae); segment 4 <strong>of</strong><br />
pro- and mesotarsi bilobed apically (cleft for more than<br />
half their length). Elytra. Strongly convex, ovate. Basal<br />
margin complete, reaching level <strong>of</strong> stria 1. Shoulders normally<br />
developed, obtuse or rounded. Scutellar setiferous<br />
pore present, inserted at base <strong>of</strong> stria 1. Scutellar striole<br />
usually present, short, usually uni- or bipunctate (rarely<br />
impunctate). Striae present, usually complete (incomplete<br />
in T. southlandicus), punctate. Striae 3 and 5 without setiferous<br />
punctures. Interval 8 carinate apically. Umbilicate<br />
series separated into two major groups (7+6 setiferous<br />
punctures), with posterior group continuous. Sutural<br />
apices angular. Abdomen. Sterna punctate (impunctate in<br />
T. southlandicus), unwrinkled. Last visible sternum (sternum<br />
VII): male with four apical and <strong>of</strong>ten two subapical<br />
ambulatory setae; female with four apical and two medial<br />
ambulatory setae. Aedeagus. Lateral view (Fig. 72–77):<br />
slightly to strongly arcuate; apex moderately to very wide,<br />
sometimes projecting ventrally. Dorsal view: symmetrical<br />
(ostium expanding equally towards sides) or 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; both parameres setulose (with a<br />
few short setae at apex).<br />
References. Larochelle & Larivière, 2001: 64–<strong>69</strong> (as<br />
a synonym <strong>of</strong> Molopsida; catalogue), 2007a: 38 (as a<br />
synonym <strong>of</strong> Molopsida; description, ecology, geographic<br />
distribution, references).<br />
Remarks. The genus Tarastethus Sharp, 1883 was<br />
synonymised with Molopsida by Britton (1940) without<br />
justification. This taxon is resurrected from synonymy<br />
here on the basis <strong>of</strong> the bilobed apex <strong>of</strong> segment 4 <strong>of</strong> pro-<br />
and mesotarsi, a character unifying included species and<br />
distinguishing this genus from Molopsida and the newly