Mormolyce matejmiciaki, Ďuríček & Klícha, 2017

Ďuríček, Marek & Klícha, Miroslav, 2017, Mormolyce matejmiciaki sp. nov. (Coleoptera: Carabidae: Lebiinae) from Borneo, Zootaxa 4365 (2), pp. 241-250 : 243-247

Mormolyce matejmiciaki sp. nov.

( Figs 3A–D , 4A–F )

Type locality. Indonesia, E. Kalimantan, Malinau [= Kalimantan Utara province, Malinau]

Type material. Holotype (male), labelled: „ March, 2015 Indonesia / Malinau / E. Kalimantan / local collector [printed]“ . Paratypes: Nos 1–6 same data as of holotype .

Type material depository. Holotype and paratype No. 2 (MDNS); paratype No.1 (NMPC), paratypes Nos 3–6 (MKPC).

Description of the holotype. Male, body length 63 mm (from mandibular apex to the end of elytra), body width 29 mm (at the widest part). Body elongated and flat ( Fig. 3A ). Head dark red-brown, antennae black, mandibles brown-reddish, pronotum with the same coloration as head but margins with teeth light brown, elytra dark brown and leaf-like expansions light brown, coxae and trochanters brown, femora, tibiae, tarsi and unguiculi red-blackish alternatively brown-reddish, at the junction of femur and tibia with dark brown or black area, sternites light brown ( Figs 3A, B ).

Head. Flat and long, slightly longer than pronotum, narrowing in the direction from eyes to pronotum ( Figs 3A, B , 4A ). Right mandible approximately in the middle with one extra tooth more than left mandible. Left mandible in the direction from apex to base with concave curvature ( Fig. 4A ). Frontal margin of labrum deepened in its centre, covered with six regularly aligned macrosetae, the longest macrosetae peripherally and the shortest ones centrally ( Fig. 3C ). Parts of clypeus at the front from the centre and follows into arches ( Fig. 4B ). Antennae reaching to the level of coxae of the hind pair of legs ( Fig. 3A ), antennomeres smooth with just a few short macrosetae at the base. There is a fovea between the eyes, creating a shallow furrow in medial line.

Pronotum. Slightly shorter than head, longitudinally elongated. In the first half, approximately of the same width. Margin of lateral side with five teeth. First three teeth in a group, fourth tooth placed in the middle between the third and fifth tooth, widest dimension of pronotum between the two fifth teeth. First tooth oriented more frontally, fourth and fifth tooth almost completely in the transversal plane. Lateral margin of pronotum slightly lifted. Pronotum moderately narrower anteriorly, expanding backwards up to fifth teeth, progressively narrowed towards posterior base, sinuate before posterior angle, only parallel just close to angle. The apical third of pronotum with prominent area with hinted medial line. The line continues to the base, just before the base interrupted with a slight impression, then continues to the base again ( Figs 1D, E , 4C ).

Scutellum. Base widened, margins run parallelly, in the apical third curved and ended in rounded tip. Margins darker than centre and slightly elevated ( Fig. 4D ).

Elytra. Central part darker with elevations in the protuberances shape—five on each side. Protuberances aligned in the shape of arch. Elytral striae running across central part. Transition between central and peripheral lighter coloured part with unevenly placed small bumps. Leaf-like shaped peripheral parts with wavy lines. The edge of the peripheral part bordered with narrow band without wavy lines ( Fig. 3A ). Base of elytra shortly advanced towards pronotum, then becoming straight but slightly depressed, and then regularly arcuate towards side ( Figs 2C , 4D ).

Legs. Profemur with the line of small serrations on the front side. Back side with macrosetae up to the basal third of femur. Protibia straight, with the spur apically on the inner side, protibia widened apically ( Figs 3A , 4F ). Widened part pubescent on the external side with sparse macrosetae, on the internal side with shorter dense macrosetae. Apex of tibia ended with single spur, few longer macrosetae near the spur creating a spine-like formation. Mesofemur ventrally pubescent almost to tibial junction. Mesotibia straight, approximately at the half with depression, apically widened, with two spurs at the apical end. Tibial pubescence approximately at the beginning of basal second quarter, thickening apically. Metafemur ventrally pubescent, macrosetae shorter—in comparison with those on mesofemur. Metatibia straight, apically with two spurs. Pubescence less dense, starting similarly as on mesotibia, continuing apically. Tarsi of all legs pubescent with dense and shorter macrosetae basally, apically becoming sparse and longer.

Pygidium. Not covered with elytra, covered with short yellow macrosetae ( Fig. 4E ).

Comparison to other known species. Identification of members of the genus Mormolyce is mostly based on a pronotum shape and base of elytra. Shape of pronotum of M. matejmiciaki sp. nov. clearly differs from that of M. hagenbachii and M. phyllodes ( Figs 1C, 1F–H ). Pronotum of M. quadraticollis and M. tridens bears four lateral teeth, while there are five teeth in M. matejmiciaki sp. nov. ( Figs 1I, J ). Mormolyce castelnaudi Deyrolle bears also five lateral teeth on its pronotum, but the shape of pronotum is more oval, whereas it is distinctly elongated in M. matejmiciaki sp. nov. ( Figs 1A, B ). Overall, the new species is most similar to M. tridens , although both species differ in the number of lateral teeth on pronotum, as well as in the shape of basal part of elytra ( Figs 1J , 2C and 2H ) Distribution. The species is currently known only from the type locality.

Etymology. The new species is dedicated by Marek Ďuríček to one of his best friends, Matej Mičiak (Brodno, Slovakia), who is a role model to him, a source of an everyday motivation and is constantly showing him how simple is to enjoy life with a cheerfulness and a good mood.

Figures

FIGURES 1A–J. Mormolyce Hagenbach, 1825, shape of pronotum. A—M. castelnaudi Deyrolle, 1862; B—M. castelnaudi Deyrolle, 1862 (variability); C—M. hagenbachii Westwood,1862; D.—M. matejmiciaki sp. nov., holotype; E.—M. matejmiciakisp. nov., paratype No.2; F—M.phyllodes phyllodes Hagenbach, 1825; G—M.phyllodes borneensisGestro,1875; H—M. phyllodes engeli Lieftinck & Wiebes, 1968; I—M. quadraticollis Donckier de Donceel, 1899 (adopted from Donckier de Donceel 1899); J—M.tridens Andrewes, 1941 (adopted from Andrewes 1941). Not to scale.

FIGURES 2A–H. Mormolyce Hagenbach, 1825, base of pronotum and base of right elytron. A—M. castelnaudi Deyrolle, 1862; B—M. hagenbachii Westwood,1862; C—M. matejmiciaki sp. nov., holotype; D—M. phyllodes phyllodes Hagenbach, 1825; E—M. phyllodes borneensis Gestro,1875; F—M. phyllodes engeli Lieftinck & Wiebes, 1968; G—M. quadraticollis Donckier de Donceel, 1899 (adopted from Donckier de Donceel 1899); H—M. tridens Andrewes, 1941 (adopted from Andrewes 1941).Not to scale.

FIGURES 3A–D. Mormolyce matejmiciaki sp. nov., holotype. A—habitus, dorsal view; B—habitus, ventral view; Clabrum; D—mentum.

FIGURES 4A–F. Mormolyce matejmiciaki sp. nov., holotype. A—head; B—labrum and clypeus; C—pronotum; D—base of elytra; E—pygidium; F—shape of protibia.