Anoplophora iadina, Wang & He & Huang, 2023

Wang, Cheng-Bin, He, Li & Huang, Jian-Bin, 2023, Two new species of Anoplophora Hope, 1839 from China (Coleoptera, Cerambycidae, Lamiinae), Zootaxa 5277 (1), pp. 165-181 : 166-173

Anoplophora iadina sp. nov. Bffƛŧ

Figs. 1A–D ; 2A, E ; 3A–D ; 4A–F ; 5A–H ; 6A–C ; 12A ; 13A, B

Type material. Holotype: ♁, CHINA, Yunnan, Diqing Tibetan Autonomous Prefecture, Weixi Lisu Autonomous County, Zhonglu Village [ñħỡdzṄBdzbŃNJẘđẪQdzbŃƌ+ǿfl], N27.24230° E99.05092°, alt. 2260 m, 5.VII.2022, Lin-Qiang Feng leg. ( MYNU) . Paratypes: 21♁♁ 22♀♀. 5♁♁, same data as holotype ( CLHC) ; 2♁♁ 2♀♀, same data as holotype except N27.23906° E99.04803°, alt. 2510 m, 27. VI.2022 ( CLHC) ; 1♁ 2♀♀, same data as holotype except N27.23934° E99.04781°, alt. 2500 m, 8.VII.2022 ( CLHC) ; 11♁♁ 14♀♀, same data as holotype except N27.24355° E99.05968°, alt. 2260 m, 14–26.VII.2022 (5♁♁ 5♀♀ in CLHC, 3♀♀ in MYNU, and 1♁ 1♀ each in CCZC, CJBH, CTLH, CYLD, CZWC and CZYL); 1 ♁ 1♀, same data as holotype except N27.24355° E99.05968°, alt. 2262 m, 10.VII.2022, local people leg. ( CYZH) ; 1♀, same data as holotype except N27.23941° E99.06099°, alt. 2250 m, 22.VII.2021, Sheng-Jun Feng leg. ( CLHC) ; 1♀, same data as holotype except N27.23580° E99.04700°, alt. 2600 m, 5.VIII.2021, Sheng-Jun Feng leg. ( CLHC) ; 1♁, same data as holotype except N27.24140° E99.04021°, alt. 2450 m, 10.VIII.2021, Guo-Cheng Feng leg. ( CLHC) ; 1♀, same data as holotype except alt. 2500 m, 22.VIII.2021, Zhi-Biao Yu leg. ( CLHC) .

Description. Holotype male. Body 28.5 mm long, widest just after elytral humeri (9.7 mm). Head (4.3), antenna (56.8), pronotum (4.0), elytra (20.0); width: head (5.9), pronotal apex (5.6), pronotal base (5.5), elytral humeri (9.1).

Habitus ( Figs. 1A, B ). Body oval. Integumentary colour of body and appendages blackish; eyes black; elytra slightly iridescent, emerald green. Frons, genae and vertex and temples inserted with some moderately long, suberect, blackish setae, and with inconspicuous bluish white pubescence along mesal margins of lower eye lobes. Scape and pedicel clothed with inconspicuous bluish white pubescence, and inserted with some moderately long, suberect, blackish setae; antennomeres III–XI annulated by bluish white pubescence at bases and clothed with brownish pubescence in remaining parts; annulations gradually decreasing and paling apically. Pronotum almost glabrous, inserted with some moderately long, suberect, blackish setae in lateral parts. Scutellum only covered with brownish microsetae. Elytra mostly glabrous; each elytron provided with about 11 small maculae of white pubescence, roughly arranged in four transverse rows and one vague macula along apical margin. Ventral surface clothed with bluish white pubescence on prosternum anterior to prosternal process, metaventrite, and abdominal ventrites. Legs, including tarsal dorsum, mostly clothed with bluish white pubescence, but with blackish pubescence on apical parts of femora and tibiae.

Head subcylindrical, 1.4 times wider than long, widest after posterior margins of lower eye lobes, slightly narrowed posteriorly. Vertex, frons and genae sparsely covered with fine punctures, interstices finely fossulate and microreticulate. Anteclypeus membranous, transverse, without setae or evident punctures; anterior margin substraight. Frons with fine median groove extending from anterior margin to occiput. Vertex moderately concave; antennal tubercles prominent.

Mouthparts. Labrum wider than long, covered with short blackish setae on dorsal surface; anterior margin gently emarginate. Mandible short, regularly arcuate at outer margin. Maxillary and labial palpi with ultimate palpomeres fusiform, truncated at apices.

Antennae moderately long, 2.0 times as long as body, with apical five antennomeres exceeding elytral apices. Antennomeres with length ratio from base to tip: 5.16–1.00–8.87–7.71–6.61–5.92–6.32–5.61–5.30–4.85–6.11. Scape subcylindrical, robust, gradually thickening towards apex, with distinct cicatrix. Pedicel knob-like, short, distinctly thinner than scape. Antennomere III the longest, 2.0 times longer than pronotum, 1.7 times longer than scape and 1.2 times longer than IV. Antennomeres III–X straight, with VI shorter than adjacent antennomeres. Antennomere XI arcuate, 1.3 times longer than X.

Thorax. Pronotum subcylindrical, base almost as wide as apex, 0.7 times as long as basal width, widest at lateral spines. Lateral spine slender, conical, with acute apex laterally directed and slightly retrousse. Posteromedial callus weakly developed. Surface densely covered with transverse wrinkles. Scutellum lingulate, rounded at apex. Surface micropunctuated.Elytra semi-oval, 2.2 times as long as humeral width, widest just after humeri. Humeral width 1.7 times wider than pronotal base. Lateral margin nearly straight in basal 1/3, then gradually narrowing towards conjointly rounded apices; sutural angle round. Surface smooth, without any granules, sparsely covered with fine punctures, interstices densely and finely rugulate and microreticulate.

Legs. Femora moderately stout; metafemora just reaching posterior margin of abdominal sternite VI. Tibiae moderately long; protibiae distinctly incurvate around apical 1/3; meso- and metatibiae straight. Tarsomere I the longest, but not longer than II+III; III deeply bilobed.

Ventral side. Prosternum almost smooth, only transversely wrinkled along anterior margin; prosternal process almost smooth, slightly emarginate at apical margin. Mesosternal process without middle tubercle. Metaventrite with fine median sulcus. Metanepisternum wedge-like, distinctly narrowing posteriorly; anterior margin widely rounded; ventral margin gently incurved at anterior part.

Abdomen. Abdominal tergite VII ( Fig. 3C ) subhexagonal, widely and shallowly emarginate at posterior margin; tergite VIII ( Fig. 4A ) subhexagonal, distinctly and roundly emarginate at posterior margin, hardly depressed on dorsal surface ( Fig. 4C ). Abdominal sternites densely and finely punctate; sternite VII ( Fig. 3D ) subsemicircular, rounded at posterior margin; sternite VIII ( Fig. 4B ) with sclerotised area cordiform, distinctly emarginate at middle of posterior margin. Spiculum gastrale ( Figs. 4D, E ) with stem 2.2 times longer than branches; stem substraight, and strongly curved at base in lateral view ( Fig. 4F ).

Male genitalia. Tegmen ( Figs. 5A, B ) widest at middle, moderately curved ventrally in lateral view ( Fig. 5C ); ringed part moderately wide at base; parameres 1/4 length of tegmen, moderately elongate, gradually convergent towards round apex, apex with dense long setae ( Fig. 5D ). Median lobe ( Figs. 5E, F ) shorter than tegmen, gently curved ventrally in lateral view ( Fig. 5G ); dorsal plate ( Fig. 5H ) gradually narrowed towards apex, rounded at apical margin; ventral plate ( Fig. 5H ) longer than dorsal plate, widest just before base, significantly narrowed from subapex, and rounded at apical margin; basal struts ( Figs. 5E, F ) 3/8 length of median lobe.

Male paratypes. Body 21.8–28.5 mm long.All male types have the same body color, without evident variations. Very few specimens with rather tiny, sporadic maculae in basal 1/4 of elytra.

Female paratypes. Body 25.7–32.7 mm long, widest at about apical 4/9 (10.0 mm). Length of different body parts (n = 2, average value, mm): head (4.2), antenna (39.7), pronotum (4.0), elytra (20.7); width: head (5.9), pronotal apex (5.8), pronotal base (5.6), elytral humeri (9.2). Antennomeres with length ratio from base to tip: 5.08–1.00–8.10–6.74–5.41–4.54–4.70–3.86–3.59–3.19–3.98.

Similar to male in general appearance ( Figs. 1C, D ), but distinct by the following characters: antennae much shorter, about 1.4 times as long as body, with apical three antennomeres exceeding elytral apices; antennomeres with bluish white annulations considerably extending before apices; abdominal tergite VII ( Fig. 3A ) with small posterior apodemes, narrowly and roundly emarginate in middle of posterior margin; sternite VII ( Fig. 3B ) subtrapezoidal, narrowly and deeply emarginate in middle of posterior margins; sternite VIII ( Fig. 6B ) with sclerotised area bifurcate; tignum ( Figs. 6A–C ) about 12.3 mm, slightly sinuate, subequal in length to abdomen; spermatheca ( Fig. 12A ) long, slender, club-like; spermathecal gland ( Fig. 12A ) very long.

Etymology. The Latin adjective “ iadina ” means “emerald like”, referring to the emerald green elytral coloration of the new species. “ ṅAEk† (Pinyin: Fei Xing Tian Niu)” is proposed for the Chinese common name of this new species.

Host plant. Acer trees [DZRDzhv].

Field observations. Living female is shown in Fig. 13A and living pupa in pupal chamber is shown in Fig. 13B .

Distribution. China (Yunnan).

Differential diagnosis. Anoplophora iadina sp. nov. belongs to glabripennis species group, which including 7 known species: A. coeruleoantennata (Breuning, 1946) , A. fanjingensis Yang, Yang & Tian, 2020 , A. flavomaculata (Gressitt, 1935) , A. freyi (Breuning, 1947) , A. glabripennis (Motschulsky, 1854) , A. puxian Wang & He, 2021 , and A. rugicollis Wang, Xie & Wang, 2022 . The new species is most similar to A. freyi ( Figs. 2C, G ), A. puxian ( Figs. 2D, H ) and A. rugicollis ( Figs. 2B, F ), on account of their common characters: elytra shiny with metallic luster ( A. coeruleoantennata , A. flavomaculata and A. glabripennis black or blackish without metallic luster) and antennae with pubescent annulations ( A. fanjingensis uniformly black without pubescent annulations).

A. iadina sp. nov. vs A. freyi (Breuning, 1947) : pronotum with transverse wrinkles in the new species, while smooth without wrinkles in the latter ( Fig. 2A vs Fig. 2C ); frons, genae, vertex, scape, pedicel and lateral parts of pronotum with some moderately long, suberect, blackish setae in the new species, while almost glabrous in the latter; antennae with different pubescence colors (more obvious in females).

A. iadina sp. nov. vs A. puxian Wang & He, 2021 : pronotum with transverse wrinkles in the new species, while relatively smooth in the latter ( Fig. 2A vs Fig. 2D ); elytra with obviously different macula patterns, the row at the level of metacoxae transversely merged into a line in A. puxian ( Fig. 2E vs Fig. 2H ); antennae with different pubescence colors (more obvious in females).

A. iadina sp. nov. vs A. rugicollis Wang, Xie & Wang, 2022 : transverse wrinkles on pronotum are clearer and denser in A. rugicollis ( Fig. 2A vs Fig. 2B ); elytra almost without maculae in basal 1/ 4 in the new species, while maculae substantially present in basal 1/ 4 in the latter ( Fig. 2E vs Fig. 2F ); elytral maculae very small in the new species, while obviously larger and subelliptical in in the latter ( Fig. 2E vs Fig. 2F ).

Figures

FIGURES 1A–D. Habitus of Anoplophora iadina sp. nov.: A, B, male, holotype; C, D, female, paratype. A, C, dorsal views; B, D, ventral views.

FIGURES 2A–H. Anoplophora females, dorsal views: A–D, pronota; E–H, elytra. A, E, A. iadina sp. nov., paratype; B, F, A. rugicollis Wang, Xie & Wang, 2022 from Vietnam; C, G, A. freyi (Breuning, 1947) (green-copper morph) from Sichuan, China; D, H, A. puxian Wang & He, 2021 from Sichuan, China, paratype.

FIGURES 3A–D. Anoplophora iadina sp. nov.: A, C, abdominal tergites VII, dorsal views; B, D, sternites VII, ventral views. A, B, female, paratype; C, D, male, holotype.

FIGURES 4A–F. Anoplophora iadina sp. nov., male, holotype: A–C, abdominal segment VIII; D–F, spiculum gastrale. A, D, dorsal views; B, E, ventral views; C, F, lateral views.

FIGURES 5A–H. Male genitalia of Anoplophora iadina sp. nov., holotype: A–C, tegmen; D, parameres; E–G, median lobe; H, apical part of median lobe. A, E, dorsal views; B, F, ventral views; C, G, lateral views; D, H, apicodorsal views.

FIGURES 6A–C. Female abdominal segment VIII of of Anoplophora iadina sp. nov., paratype: A, dorsal view; B, ventral view; C, lateral view.

FIGURES 12A, B. Female genitalia of Anoplophora species, ventral views: A, A. iadina sp. nov., paratype; B, A. zibroides sp. nov., paratype.

FIGURES 13A–E. Field observations of two new species of Anoplophora: A–B, A. iadina sp. nov.; A, a living female; B, a pupa in pupal chamber (Lin-Qiang Feng photoed); C–E, A. zibroides sp. nov. (Liang-Xin Shi photoed); C, general environment of Shilipingtan; D, host plant Symplocos trees; E, a living female.