Anoplistes kaszabi, Karpiński, 2020

Karpiński, Lech, 2020, A new species of the genus Anoplistes Audinet-Serville, 1834 (Coleoptera Cerambycidae, Cerambycinae, Trachyderini) from Mongolia, Zootaxa 4816 (2), pp. 191-201 : 192-196

Anoplistes kaszabi sp. nov.

( Figs 1 A–C, E, O–P, 2A–C, 3A–E)

LSID: urn:lsid:zoobank.org:act:613D7776-5EBA-4850-A581-BF306C42FBDD

Type material examined: eight ♂♂ and four ♀♀.

Holotype: female ( Fig. 1A ): MONGOLIA, Dundgovi Aimag [Дундговь, Middle Gobi]: 20 km S of Somon Delgerzogt ( Delgertsogt ) [Дэлгэрцогт] (orig. „ Nr. 914 ”) (about 45.96, 106.36), 13– 14.07.1967, 1480 m a.s.l., Zoltán Kaszab leg. ( HNHM).

Paratypes: MONGOLIA, Dundgovi Aimag [Дундговь, Middle Gobi ]: 20 km S of Somon Delgerzogt (Del- gertsogt) [Дэлгэрцогт] (orig. „ Nr. 914 ”) (about 45.96, 106.36), 8 males, 2 females, 13– 14.07.1967, 1480 m a.s.l., Zoltán Kaszab leg. (4 males, 1 female, HNHM; 2 males, CCH; 1 male, 1 female, CLK; 1 male, NMP); SouthGobi [Өмнөговь, South Gobi]: 40 km E of Talyn Bilgech spring, b/w Tost and Cagan Bogd Mountains (orig. „ Nr. 836 ”) (about 42.89, 99.69), 1 female, 23.06.1967, 1100 m a.s.l., Zoltán Kaszab leg. ( HNHM) .

Description: Morphology. The habitus of the female holotype is presented in Fig. 1A . Body relatively slen- der; BL in males: 12.6–15.3 mm, in females: 14.5–15.2 mm (HT 15.2 mm). Humeral width in males: 3.3–4.4 mm, in females: 4.0– 4.4 mm (HT 4.4 mm). Integument black; legs black to brownish; elytra black with slight metallic luster, usually with two orange spots at humeri ( Fig. 1 A–B, E) separated by scutellum or without any spots ( Fig. 1C ), always with single stripe of different width along epipleura. Pubescence of whole body made by sparse, short and whitish hairs, being the longest on head and pronotum; on elytra more pronounced along elytral suture, forming strip; on ventral side more uniform, long and dense; on legs semi-decumbent, short and sparse, on tibiae replaced by denser brownish setae forming brush, very dense and goldish on inner side of anterior pair. Head broad, with coarse sculpture; frons strongly marked with longitudinal furrow of variable depth between antennal tubercles; clypeus and labrum relatively broad and well-pronounced; mandibles strong; eyes large, surrounding antennal tubercles; genae projected, approx. 0.75 of eye width. Antennae relatively thick and long, reaching elytral apex or exceeding it by half of last antennomere in males, and much shorter, at most reaching half of elytral length, in females; average length ratio of antennomeres in males: 1:0.23:1.23:1.1:1.13:1.13:1.13:1.1:1.1:0.95:1.27, in females: 1:0.2:0.9:0.75: 0.75:0.75:0.75:0.66:0.66:0.6:0.66; antennomeres 3–10 with pronounced tooth of variable depth on outer side.

Prothorax relatively narrow, almost rectangular, widest at middle or just behind, with more or less rounded sides, base extended, sharpened at margins; approx. 1.18 (HT 1.2) times as wide as long, about 3.6 (HT 3.67) times shorter and 1.2 (HT 1.2) times narrower than elytra at humeri. Pronotum rather irregularly and usually entirely punctate ( Fig. 3 A–B), sometimes with smooth area near center; punctuation rather uniform, sparse, and well-marked. Prosternum finely and sparsely punctate. Prosternal process pronounced, robust and long, reaching apex of procoxae, slightly curved dorsally, cross-shaped, expanded apically with pronounced lateral appendages. Elytra long, in males approx. 2.62 times, in females 2.52 times as long as humeral width, gradually tapering towards apex in males and almost parallel-sided in females; elytral sculpture composed mainly by regular, sparse and relatively broad and deep punctures with rather flat surface between them ( Fig. 3C, D ), gradually disappearing towards apex; scutellum well-marked, triangular, rather stable in shape, covered with long hairs. Protarsomeres in males pronounced, lobes of protarsomere 3 elongate and bilobate, protarsomere 5 slightly longer than 2 and 3 combined; in females, protarsomeres much finer, with clearly shorter lobes. Metafemora and metatibiae long and slender in males, slightly shorter in females; metatarsomere 1 about as long as 2 and 3 combined in both sexes ( Fig. 3E ).

Male terminalia. Median lobe ( Fig. 2C ) broad and robust, not tapering towards apex; apex broad, short and rounded. Lateral lobes ( Fig. 2B ) of tegmen ( Fig. 2A ) short and robust, slightly sharpened at apex, with relatively short hairs apically; phallobase broad and rounded; manubrium significantly elongated.

Differential diagnosis. Anoplistes kaszabi sp. nov. differs from its closest relative, A. mongolicus ( Figs 1 G–H, M–N, R, 3F–J) principally by the more elongate and the less spherical pronotum with the larger, sparser and deeper punctures ( Fig. 3 A–B vs. F–G), the more evenly and densely pubescent elytra ( Fig. 3 C–D vs. H–I), the more slen- der body of smaller size and the thinner antennae with different ratios of antennomeres in both sexes. Furthermore, females can be easily distinguished by their clearly longer last antennomeres ( Fig. 1 K–L vs. M–N). Males are more difficult to differentiate and, in addition to the characters listed above, their elytra tend to gradually taper towards apex. Moreover, melanistic forms ( Fig. 1C ) are unknown in rather extensive comparative material of A. mongolicus . Elytral spots and stripes, if present, are pale red in all known specimens of A. kaszabi sp. nov. and usually blood red in A. mongolicus , however, this trait is apparently not diagnostic in the genus. The new species can also easily be separated from Anoplistes amoenus Reitter, 1898 (stat. res.), the second species of the discussed group that is distributed in the adjacent region and currently considered as a subspecies of A. mongolicus . Anoplistes kaszabi sp. nov. differs from A. amoenus by the more rugose sculpture of pronotum ( Fig. 3 A–B vs. K–L), the elytra with clearly sparser and larger punctures and fewer, thicker and shorter hairs ( Fig. 3 C–D vs. M–N), the darker integument of whole body (black vs. brown), the different ratio of metatarsomere 1 vs. 2 and 3 combined ( Fig. 3E vs. O), the shorter antennae and the different shape of prosternal process.

Distribution. Anoplistes kaszabi sp. nov. is only known from two distant localities in central and southern Mongolia ( Fig. 4 ): its type locality approx. 20 km S of Delgertsogt (about 45.96, 106.36) and the area between Tost and Cagan Bogd Mountains (about 42.89, 99.69).

Bionomics. Adults of the new species were observed from the last decade of June to mid-July at altitudes between 1100 and 1500 m a.s.l. Although the larva is not known, this taxon is probably ecologically associated with Zygophyllum xanthoxylon (Bunge) Maxim. (Zygophyllaceae) (see more in Discussion).

Remarks. All specimens of the new species were collected by Zoltán Kaszab during the 1967 expedition. It is noteworthy that although according to Heyrovský (1970) only nine specimens recognized by him as A. mongolicus were collected in the locality no. 914 (type locality of the new species), I was able to find eleven specimens with the original labels, one of them being the melanistic form presented here ( Fig. 1C ), that has been incorrectly identified as Anoplistes halodendri (Pallas) . However, it is difficult to explain the remaining individuals because they are morphologically uniform. This may suggest that possibly there are more specimens of A. kaszabi sp. nov. from this area in other collections. In addition to the series of five males and three females deposited in HNHM, two males were found in CCH and another male in NMP.

Etymology. The new species is named in memory of Dr. Zoltán Kaszab ( Hungary), a great entomologist, who was a pioneer in research on Mongolian entomofauna and who collected all type material of the new species.

Figures

FIGURE 1. Habitus, labels and antennomeres of the taxa of the Anoplistes mongolicus species-group: Anoplistes kaszabi sp. nov. (A–F, K–L, O–P), Anoplistes mongolicus (G–H, M–N, R) and Anoplistes amoenus (I–J, S). A, holotype, female, dorsal view; B, paratype, male, dorsal view (type locality); C, paratype, male (melanistic form), dorsal view (type locality); D, original labels of specimens from the type locality; E, paratype, female, dorsal view (Cagan Bogd Mountains); F, original labels of specimen from Cagan Bogd Mountains; G, female, dorsal view (100 km W of the border post Ovot Chuural); H, male, dorsal view (ibidem); I, female, dorsal view (Bagratsch-Kul, Korla); J, male, dorsal view (ibidem); K, L, paratypes, females, last five antennomeres; M, N, paratypes, females, last five antennomeres; O, paratype, female, lateral view; P, paratype, male, lateral view; R, paratype, male, lateral view; S, holotype, male, lateral view. Scale bar: 5 mm.

FIGURE 2. Male genitalia of Anoplistes kaszabi sp. nov. A, paratype, tegmen; B, paratype, parameres (lateral lobes); C, paratype, median lobe.

FIGURE 3. Pronotum, elytra (basal region) and protarsi of the taxa of the Anoplistes mongolicus species-group: Anoplistes kaszabi sp. nov. (A–E), Anoplistes mongolicus (F–J) and Anoplistes amoenus (K–O). A, male, pronotum; B, female (holotype), pronotum; C, male, elytra; D, female (holotype), elytra; E, male, protarsus; F, male, pronotum; G, female, pronotum; H, male, elytra; I, female, elytra; J, male, protarsus; K, male (holotype), pronotum; L, female, pronotum; M, male (holotype) elytra; N, female, elytra; O, male, protarsus.

FIGURE 4. Distribution of Anoplistes kaszabi sp. nov. and Anoplistes mongolicus in Mongolia and N China (Inner Mongolia) (OpenStreetMap contributors).