Orictites ampliosetosus Balkenohl, 2017, sp. nov.
Creators: name: Balkenohl, Michael
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Carabidae
Orictites
Orictites ampliosetosus

description: Orictites ampliosetosus sp. nov.
Type material: Holotype: ♂, labels: white, black printed: “ MALAYSIA: Pahang Cameron Highlands Umg. Tanah Rata, 1600 m 27.–31.7.1993 lg. Schuh ” (NHMW).
Paratypes: 1 ♂, Labels: white, black printed: “ Malaysia, Cameron Highl. Gn.Beremban 1.–3.4.1990 leg. Riedel ” (CBM-ZSM). 1 ♀: “W. Malaysia: Pahang # 23 Cameron Highls. 1500m Tanah Rata, 22–28.IV.93 LÖbl & Calama, light trap ” (MHNG).
Remark: In one of the paratypes, parts of the antennae are missing.
Description (Figs 8, 26, 37; pp. 9, 24, 36)
Measurements (n = 3): Body length 5.9–7.1 mm ( = 6.64 mm), width 1.6–1.85 mm ( = 1.75 mm), ratio length/width of pronotum 0.87–1.01 ( = 0.96), ratio length/width of elytra 1.95–2.07 ( = 1.99).
Colour: Shiny. Black. Wings of clypeus and supraantennal plates slightly transparent brown. Labrum black. Antennae and legs dark-brown, palpi red brown.
Head: A sixth narrower than pronotum. Clypeus with small rounded tooth laterally, anterior margin slightly excised, with blunt raised knob in between the two clypeal setae, anteriorly smooth, posterior part of knob covered with big punctures, margin of wings convex, slightly hollowed out, divided from middle part of clypeus by slight notches and carinae, divided from supraantennal plates by distinct obtusely angled notches and ridge, clypeus and wings reflexed margined, supraantennal plates vaulted up to mid-eye level, smooth, with reflexed rounded margin, elongated as supraorbital carina, frons separated from clypeus by flat transverse depression with rugae, with costate, nearly parallel running frontal carinae at each side posteriorly, with broad furrow between frontal carina and supraorbital carina, sharp furrow between frons and frontal carina, frons moderately convex, smooth. Supraorbital setae located in broad furrows between supraorbital carina and frontal carina, the posterior one arising from tubercle. Eyes relatively small, moderately convex, genae enlarged, rounded, not as high as and shorter than eyes, enclosing eyes posteriorly, forming obtuse angle at neck. Grooves for reception of antennae short, length 0.4 of eye diameter. Neck constriction marked as distinct step, with bigger punctures partly connected, neck laterally covered with reticulation and densely scattered medium sized punctures. Labrum straight, 7-setose, ciliate laterally, with isodiametric reticulation. Mandibles robust, shorter than head, flattened, stout, broadened at base, acutely curved at apex, carinae of scrobe complete, both mandibles obtusely angled towards base (opened position), both mandibles somewhat hollowed out dorsally. Maxilla distinctly curved, acutely hooked at apex. Apical maxillary palpomere slender, slightly securiform. Apical labial palpomere slender, straight, slightly longer than 2 nd segment, 2 nd segment bisetose. Ligula with one long seta; paraglossae slender. Ventral surface of neck with a few punctures and reticulation. Submentum and mentum distinctly separated; submentum with four, about equally spaced setigerous punctures; mentum at base bilaterally with rounded elevation, with some longitudinal carinae, with fine reflexed margin, lateral lobes projecting, nearly right-angled at tips, with a seta near base of each lobe, median tooth forming obtuse triangle, bisetose, not projecting as far as lateral lobes. Antennae relatively long, reaching up to posterior third of pronotum, scapus knee-like angled, with one seta dorsoapically, scapus and pedicellus with fine reticulation, segments 5–10 elongate (L/ W 1.5), antennomeres cylindrical, with shiny areas, segments 4–11 densely pubescent, with a few additional long setae.
Pronotum: Square, slightly wider than long, sides straight, rounded at anterior angles. Anterior margin indistinctly bisinuate. Reflexed lateral margin smooth, convex for a short distance before posterior angles. Margin from posterior angle to base running as straight line. Lateral channel conspicuously broad between the two lateral setigerous punctures, with isodiametric reticulation and very few irregular punctures. Anterior setigerous puncture located at the end of anterior quarter adjoining convexity of pronotum, the posterior one located at level of posterior angle, removed from lateral channel by diameter of pore. Anterior angles distinctly projecting, rounded, formed by reflexed lateral margin, posterior angle developed as sharp distinct tooth, projecting laterally. Anterior transverse line narrow, formed by distinct, partly connected punctures. Median line deep and conspicuously broad, nearly smooth, surpassing anterior transverse line without joining, fine at base, not adjoining base. Surface bilaterally with two irregularly longitudinal groups of punctures with slight basal impression. Basal channel broad, deep. Flange raised keellike (lateral view).
Elytra: Subcylindrical, sides slightly diverging, marginal channel broad, visible from above, with uninterrupted row of big setigerous punctures arising from broad tubercles, with additional row of punctures laterally. Reflexed margin with some scars in anterior third, margin slightly thickened at humerus, bending with channel over rounded humerus up to 5 th stria. No tooth at humerus. Basal tubercle distinct, with setigerous puncture, situated at declivity of first stria. Striae 1–4 free at base, all striae deep, distinctly punctate, striae 1–2, 3–4 and 5–6 joined apically; striae 6 and 7 shortened at humerus. Striole distinct, interval between striole and sutura raised. All intervals conspicuously convex, thought costate, 3 rd broader and distinctly raised at base, with tubercle at base, 8 th carinate. All intervals shiny on disc. Interval 3 with 6–7 setigerous punctures adjoining stria 3.
Hind wings: Fully developed.
Ventral surface: Epipleuron shiny, covered with big scattered punctures and indistinct reticulation, submarginal furrow distinct. Proepisternum and episternum nearly smooth, prosternite smooth, keeled at middle, mesosternum smooth. Sternites with transverse to isodiametric reticulation, each with punctures at base, denser laterally, 3 rd to 5 th with paralateral ambulatory setae at each side, ventral strigae distinct, sternite 6 smooth at middle, with two widely separated apical setae at each side.
Legs: Anterior tibia with strong digitation, with two big and one small lateral preapical denticles, apical spine curved distinctly towards ventral, no dorsal furrow, smooth, basal tarsomere elongated, as long as the following four together. Mesotibia with preapical spine, furnished with strong seta. All tarsomeres relatively broad.
Male genitalia (Fig. 26): Relatively short, moderately sclerotized. Median lobe broad, moderately arcuate, moderately distorted. Endophallus strongly folded, teeth not visible. Parameres of about same length, both slender, slightly twisted, asetose.
Female genitalia (Fig. 37): Coxostylus slightly sigmoid, dorso-ventrally moderately depressed, gently curved to apex, with one seta at apex, with one short but robust ensiform seta, with six nematiform setae medially.
Variation: Of the three specimens investigated one exhibits six setigerous punctures on the 3 rd interval of each elytra, one seven on each elytra, and one six on one side and seven on the other side.
Diagnosis: A medium-sized black species with distinct knob on the clypeus and distinct flat transverse depression behind, no humeral tooth, and a tubercle at the base of interval 3 of the elytra. Distinguished from all other species by the presence of 6–7 setigerous punctures on interval 3, and the conspicuously broad median line of the pronotum not adjoining base.
Distribution: The species is found in the Cameron Highlands of Malaysia and the material was collected at an altitude of 1200 m.
Etymology: The name refers to the additional setae on the 3 rd interval of the elytra, which differs from the usual pattern of four setae.
description: Published as part of Balkenohl, Michael, 2017, Revision of the genus Orictites ANDREWES, 1931 (Coleoptera, Carabidae, Clivinini), pp. 1-68 in Contributions to Natural History 35 on pages 44-46, DOI: 10.5169/seals-787048, http://zenodo.org/record/6284316