Intybia klapperichi (Hicker, 1949)

Wang, Yuqi, Li, Zhiqiang, You, Ping & Liu, Zhenhua, 2024, Contribution to the Chinese Intybia Pascoe, 1866 (Coleoptera, Melyridae, Malachiinae), with descriptions of two new species groups and one new species, ZooKeys 1202, pp. 329-341 : 329-341

publication ID	https://doi.org/ 10.3897/zookeys.1202.115935
publication LSID	lsid:zoobank.org:pub:59192542-ADBE-4518-855E-E06EE35827A4
DOI	https://doi.org/10.5281/zenodo.11358467
persistent identifier	https://treatment.plazi.org/id/849C6871-92A3-560D-AEEB-007277B6C377
treatment provided by	ZooKeys by Pensoft
scientific name	Intybia klapperichi (Hicker, 1949)
status

Treatment

Figs 2 D – F View Figure 2 , 3 View Figure 3

Material examined.

Holotype: China • ♂; Fujian, Kwangtseh ; 1 Sept. 1937; J. Klapperich leg.; ZFMK - COL- 1000188 .

Other materials.

China • 2 ♂, 4 ♀; Guangdong, Shaoguan City, Ruyuan, Nanling National Forest Park ; 24.88487 ° N, 113.03585 ° E; 9 May 2023; Zhenhua Liu, Yuqi Wang and Liye Wei leg.; net sweeping; IZGAS GoogleMaps .

Diagnosis.

It can be distinguished from the other two species within the species group by shape of antennomere 3 (Fig. 3 D View Figure 3 ), with inner protrusion blunt apically and bent toward posterior (inner protrusion pointed apically in Intybia hainanensis and bent toward anterior in Intybia erectodentatus ).

Redescription.

Male. Length 2.0– 2.4 mm. Head yellow, with areas behind middle of eyes black on dorsal surface (Fig. 1 A, G View Figure 1 ), frons with median area darker (Fig. 3 E View Figure 3 ); ventral surface with gular area dark brown. Mandibles yellow with black apex; maxillary palps and labial palps dark brown. Antennae with scape and antennomere 3 light yellow, antennomeres 4–11 brown to black (Fig. 3 D View Figure 3 ). Pronotum and elytra black. Legs with coxae, trochanters and femora mostly black; apex of tarsi, middle areas of middle and hind tibiae brownish to dark brown; remaining part of tibiae and tarsi, joints of coxae and trochanters yellow (Fig. 3 B View Figure 3 ). Prosternum, mesoventrite and metaventrite black; abdominal ventrites black with medial areas yellow to orange. Vestiture of dense white setae.

Head widest across eyes, nearly as wide as pronotum; dorsal surface flat, covered with short setae; clypeus divided into sclerotized postclypeus and membranous anteclypeus; frons slightly constricted in front of eyes. Eyes large and laterally protruding. Antenna with 11 segments; scape elongated and subtriangular; antennomere 3 suboval, inner margin with a hammer-shaped projection twisting towards posterior (Fig. 3 D View Figure 3 ); antennomeres 4–11 densely covered with setae. Labrum transverse, anterior margin strongly arched. Maxillary palps with 4 segments, last segment enlarged and obliquely truncate; labial palps with 3 segments, terminal segment conical.

Prothorax transverse; pronotum about 0.7 times as long as wide, widest at about half; margins smooth, without distinct angles; anterior margin evenly arched, posterior margin nearly straight. Surface densely covered with white short setae. Prosternum short, protrochantin exposed. Procoxal cavities transverse and contiguous at middle; procoxae enlarged, subtriangular. Scutellum subtrapezoid, posterior margin nearly truncated.

Elytra about 1.4 times as long as wide, widest at about anterior third, lateral margins slightly curved; humeri slightly elevated. Surface densely covered with white setae, longer than those on pronotum, punctation indistinct. Mesoventrite transverse and subtriangular; mesocoxal cavities contiguous at middle, laterally open to mesepimeron; mesocoxae enlarged and subtriangular, distinctly projecting, trochantins exposed. Metaventrite transverse, slightly swollen, metanepisternum broad at base, narrowed posteriorly. Metacoxae transverse, subtriangular, sharply narrowed beside trochanter.

Legs (Fig. 3 B View Figure 3 ) slender, femora slightly enlarged at middle, covered with dense short setae; tibiae slender, with denser setae than femora, which is even denser on inner surface of fore tibiae. Tarsal formula 5–5 – 5, terminal tarsomere with pair of symmetrical small claws and membranous appendages.

Abdomen with 6 freely movable ventrites. Ventrites with long setae on the sides, longer setae on ventrites 4–6. Tergite VIII with posterior margin emarginate (Fig. 2 E View Figure 2 ), covered with sparse setae, denser along apical margin; sternite VIII narrowly weakly connected at middle (Fig. 2 D View Figure 2 ). Aedeagus (Fig. 2 F View Figure 2 ) slender, apex narrowly rounded; endophallus with longitudinal sclerite, about half as long as penis; subapical area with numerous spinules.

Female. Similar to male in body shape and colouration (Fig. 3 C View Figure 3 ), but with head entirely black. Antenna with scape only slightly dilated apically; antennomere 3 simple, rectangular. Fore tarsi distinctly longer than those in male.

Distribution.

Fujian, Guangdong.

Intybia eversi species group

Diagnosis. Head, pronotum, scutellum and elytra black, elytra with metallic blue luster (Fig. 4 A – C, F View Figure 4 ). Vestiture of dense short setae. Head with midcranial suture. Pronotum strongly constricted posteriorly, distinctly shorter than elytra at base. Elytra only with dense fine punctures at center, remaining areas nearly smooth. This species group resembles the Intybia lombokana group ( Plonski, 2015) in colouration, but can be easily distinguished by the simple vestiture, punctation on the elytra and shape of the pronotum.

Remarks. Tshernyshev (2020) established the subgenus Protolaius for Intybia lombokana ( Pic, 1910) and Intybia schillhammeri (Wittmer, 1966) of the Intybia lombokana group, mainly based on the excavate femora in the male, which is absent in Intybia concha .

Included species. Intybia concha Asano, 2015 , Intybia eversi (Hicker, 1949) .

Distribution. Only known from China (Guangdong, Jiangsu, Shaanxi, Taiwan).