Lucanus parryi, Boileau, 1899

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 : 342-343

3.5 The Lucanus parryi group, sensu novo

Description. Male: 1) ratio of mandibular length to length of head and pronotum for Lucanus parryi species group is 1.15–1.2; 2) major inner mandibular tooth usually poorly developed, or triangular, not bilaterally flattened; 3)>3 small inner mandibular teeth (denticles) located above and below each major inner mandibular tooth; 4) clypeolabrum poorly developed to absent, weakly protruding at middle; 5) posterolateral margin of head usually flat, less than 1.3× pronotal width; 6) prothoracic tibiae each bearing>5 spines from apex to midlength; mesothoracic tibiae each bearing 2–3 spines along midlength; 7) elytral color usually different from that of head and pronotum, surface smooth and not punctate; 8) basal aedeagus slender, weakly enlarged along midlength. Female: 1) mandibular apices strongly incurved, but not forming acute angles; 2) right inner mandibular tooth narrow and flat long inner ridges, with anterior tip slightly behind apex of mandible, not forming a gap below apex of mandible, weakly asymmetrical to left inner mandibular tooth; 3) apex of pronotum poorly enlarged, usually subequal in width to that of posterolateral pronotum; 4) prothoracic tibiae enlarged, two distal spines slightly larger than 3rd and 4th; 5) preocular and postocular margins weakly developed.

Body length 45.4–53.7 mm (Major ♂), 35.6–45.3 mm (Median ♂), <35.5 mm (Minor ♂); 22.5–33.2 mm (♀).

Distribution. The single species comprising the Lucanus parryi species group is distributed in Centraleast, Central, and Southwest of China, including Anhui, Zhejiang, Fujian, Jiangxi, Hunan, Sichuan, Chongqing, and Guizhou Provinces.

Natural history. Adults. Adults of Lucanus parryi are active from early June to mid-July. Males tend to fly during both the daytime and night, finding suitable host plants, feeding, and mating with females. the altitudinal range of is 300–1250 m. Most adults were attracted to light and collected by the light trapping method. Adult longevity is usually 4–6 weeks. Larvae. Little known about the larvae of L. parryi . Females usually tend to randomly oviposit their eggs under laboratory conditions. Larvae have been reported to undergo three instars within 18 months. However, most larvae suddenly failed to feed and died in the final instar even the temperature was constant.