Lucanus hewenjiae Huang & Chen, 2013

Zhan, Zhihong & Young, Daniel K., 2023, A taxonomic assessment and redefinition of the Lucanus fortunei species group in China (Coleoptera: Lucanidae: Lucaninae), Zoological Systematics 48 (4), pp. 279-360 : 322-324

Lucanus hewenjiae Huang & Chen, 2013 ( Figs 140–147 , 263 , 295 , 324 , 352 , 418–420 )

Lucanus hewenjiae Huang & Chen, 2013: 33–34 , plate 8, figs XXXVIII-1–4. Material examined. [10♂]: CHINA: Guangxi Province, Guilin City, Xing-An County // Mao-Er-Shan // [桂ff市, %

儿山]; Alt. 1300m; 14 July. 2020 // Yingbing Li leg.; [2nd label]: 25.8593°N; 110.4815°E Adult // collected by the light-trap; [3rd label]: Lucanus // hewenjiae // Huang and Chen ♂ // det. Z. Zhan; [2♀]: CHINA: Guangxi Province, Guilin City, Xing- An County // Mao-Er-Shan // [桂ff市, %儿山]; Alt. 1300m; 14 July. 2020 // Yingbing Li leg.; [2nd label]: 25.8593°N; 110.4815°E Adult // collected by the light-trap; [3rd label]: Lucanus // hewenjiae // Huang and Chen ♀ // det. Z. Zhan.

Body length 45.2–67.8 mm (♂); 28.9–36.2 mm (♀).

Description. Major male. Body reddish to brownish, body surface weakly metallic; head, including widest region at mandibular bases, 2.3× width of pronotum and elytra. Head brownish, surface covered with vestiture of short, yellowish-amber setae; mandibles strongly incurved along basal 1/3 and apical 1/3, straight along midlength; major inner mandibular tooth located approximately 1/3 distance from apex, acutely triangular, not inflated on either side, <6 small inner mandibular teeth located at basal ¼ of mandible; <4 small inner mandibular teeth located behind apical fork; apical mandibular fork strongly developed, widely open anteriorly, upper branches of apical fork 1.6× length of lower apical fork branches; anterolateral ridges of head rounded, well developed, posterolateral margin of head convex, slightly wider than anterolateral ridges, forming blunt angles; clypeolabrum developed, stout, trapezoidal, labrum triangular, weakly protruding at middle. Thorax brownish, weakly metallic, surface punctate and covered with vestiture of short, yellowish-amber setae; slightly convex at apex and base, strongly protruding at middle; 0.5× width of head and mandibles; prothoracic tibiae reddish and slender, each bearing>5 small but well-developed spines from apex to base; mesothoracic tibiae bright reddish, each bearing 2–3 spines along midlength; metathoracic tibiae reddish, each bearing a single poorly developed spine at basal 1/3. Elytra reddish to brownish, usually brighter than head and pronotum, surface smooth and without any visible setae; strongly metallic; slender, widest at apical 1/3, narrow at basal 1/3. Median male as major male except: head with major inner mandibular tooth stout triangular, single-pointed; <5 small inner mandibular teeth located below major tooth. Minor male as major and median males except: head with mandibles straight and weakly incurved apically; major inner mandibular tooth weakly developed to absent, single-pointed, not triangular; <8 poorly developed small inner mandibular teeth located below or above major tooth. Genitalia. Ventral plate of 9th abdominal segment widened behind cephalic base and constricted before caudal expansion; basal piece usually well defined, 0.36–0.47× length of entire aedeagus; apical flagellum weakly enlarged, flagellum as 0.5× length of entire aedeagus; aedeagus stout, incurved at basal 1/3, triangular distally.

Female. Body black, surface metallic, slender, usually smaller than major and median males, subequal in length or larger than minor male. Head black; surface densely punctate; mandibles strongly incurved along midlength and apical 1/3; mandibular tooth well developed, asymmetrical; right mandibular tooth triangular, that of left mandibular smooth and convex along midlength; preocular and postocular margins well developed, forming acute angles, protruding anteriorly; clypeolabrum poorly developed, single-pointed along midlength. Pronotum black, metallic, obscurely but densely punctate; anterior pronotum well enlarged, forming blunt angles, 1.2× width of posterolateral pronotum; prothoracic tibiae black with reddish stripes, each bearing five spines from apex to midlength; distal two spines sharp, strongly developed; prothoracic tibiae 1.3× width of mesothoracic and metathoracic tibiae; mesothoracic tibiae black, each bearing two spines along midlength; metathoracic tibiae black, each bearing a single spine at basal 1/3. Elytra black, metallic, slender, widest at apical 1/3, strongly narrow at basal 1/3.

Distribution. China (Guangxi).

Phenology. Adult specimens of L. hewenjiae were collected from mid-July.

Natural history. Typical plants for this species are still unknown. Lucanus hewenjiae is strongly attracted to light. Adult longivity is around 30 days.

Collecting methods. Light-trap collected.

Figures

Figures 140–147. Habitus of Lucanus hewenjiae. 140. Male, dorsal view. 141. Male, ventral view. 142. Male, lateral view. 143. Major male. 144. Median male. 145. Minor male. 146. Female, dorsal view. 147. Female, ventral view. Scale bar=10mm.

Figures 260–275. Head characters of Lucanus spp., male. 260. L. fonti. 261. L. formosus. 262. L. fujitai. 263. L. hewenjiae. 264. L. liuweii. 265. L. miwai. 266. L. szetschuanicus. 267. L. yulaoensis. 268. L. zhanbishengi. 269. L. zhuxiangi. 270. L. dirki. 271. L. kraatzi kraatzi. 272. L. liupengyui. 273. L. nobilis. 274. L. shulini. 275. L. parryi. Scale bar=10mm.

Figures 276–307. Prothoracic tibial characters of Lucanus spp., male. 276. L. chengyuani. 277. L. datunensis. 278. L. delavayi. 279. L. derani derani. 280. L. derani fukinukiae. 281. L. fortunei. 282. L. fujianensis. 283. L. kirchneri. 284. L. klapperichi. 285. L. moae. 286. L. swinhoei. 287. L. wuyishanensis. 288. L. brivioi. 289. L. cenwanglaoshanus. 290. L. deuveinaus. 291. L. fairmairei. 292. L. fonti. 293. L. formosus. 294. L. fujitai. 295. L. hewenjiae. 296. L. liuweii. 297. L. miwai. 298. L. szetschuanicus. 299. L. yulaoensis. 300. L. zhanbishengi. 301. L. zhuxiangi. 302. L. dirki. 303. L. kraatzi kraatzi. 304. L. liupengyui. 305. L. nobilis. 306. L. shulini. 307. L. parryi. Scale bar=10mm.

Figures 324–335. Head characters of Lucanus spp., female. 324. L. hewenjiae. 325. L. liuweii. 326. L. miwai. 327. L. szetschuanicus. 328. L. zhanbishengi. 329. L. zhuxiangi. 330. L. dirki. 331. L. kraatzi kraatzi. 332. L. liupengyui. 333. L. nobilis. 334. L. shulini. 335. L. parryi. Scale bar=10mm.

Figures 336–363. Prothoracic tibial characters of Lucanus spp., female. 336. L. delavayi. 337. L. derani derani. 338. L. derani fukinukiae. 339. L. fortunei. 340. L. fujianensis. 341. L. kirchneri. 342. L. klapperichi. 343. L. moae. 344. L. swinhoei. 345. L. wuyishanensis. 346. L. brivioi. 347. L. cenwanglaoshanus. 348. L. deuveinaus. 349. L. fairmairei. 350. L. fonti. 351. L. formosus. 352. L. hewenjiae. 353. L. liuweii. 354. L. miwai. 355. L. szetschuanicus. 356. L. zhanbishengi. 357. L. zhuxiangi. 358. L. dirki. 359. L. kraatzi kraatzi. 360. L. liupengyui. 361. L. nobilis. 362. L. shulini. 363. L. parryi. Scale bar=10mm.

Figures 412–435. Male genitalia of Lucanus spp. 412. L. formosus, dorsal view. 413. L. formosus, ventral view. 414. L. formosus, lateral view. 415. L. fujitai, dorsal view. 416. L. fujitai, ventral view. 417. L. fujitai, lateral view. 418. L. hewenjiae, dorsal view. 419. L. hewenjiae, ventral view. 420. L. hewenjiae, lateral view. 421. L. liuweii, dorsal view. 422. L. liuweii, ventral view. 423. L. liuweii, lateral view. 424. L. miwai, dorsal view. 425. L. miwai, ventral view. 426. L. miwai, lateral view. 427. L. szetschuanicus, dorsal view. 428. L. szetschuanicus, ventral view. 429. L. szetschuanicus, lateral view. 430. L. yulaoensis, dorsal view. 431. L. yulaoensis, ventral view. 432. L. yulaoensis, lateral view. 433. L. zhanbishengi, dorsal view. 434. L. zhanbishengi, ventral view. 435. L. zhanbishengi, lateral view. Scale bar=10mm.