Macrolycus Du, Yang, Yang & Liu, 2024, s. str.
Creators: name: Du, Ruolan
name: Yang, Yuxia
name: Yang, Xingke
name: Liu, Haoyu
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Lycidae
Macrolycus

description: Key to the species of Macrolycus s. str.
(males only)
1. Aedeagus with strongly developed parameres, at least 1/3 length of phallus (e.g. Fig. 3G; Li et al. 2012: fig. 37).......... 2
- Aedeagus with moderately developed parameres, less than 1/4 length of phallus (e.g. Figs 3B, E, K; Kazantsev 2001: figs 2, 5; 2002: fig. 2, 6; Li et al. 2012: fig. 34)..................................................................... 3
2. Phallus present with a ridge along the whole length of lateral side (Li et al. 2012: fig. 36)..................................................................................................... M. luteus Li, Bocak & Pang, 2012
- Phallus smooth and absent with ridge on lateral side (Fig. 3I)......................... M. bowringi Waterhouse, 1878
3. Parameres shell-shaped, with lateral margins nearly straight or feebly protuberant in lateral view.... M. jeanvoinei Pic, 1935 Parameres spoon-shaped, with lateral margins widely emarginate in lateral view (e.g., Figs 3C, F, L; Kazantsev 2001: fig. 6; 2002: figs 3, 7; Li et al. 2012: fig. 41)..................................................................... 4
4. Phallus of aedeagus with tetraschistic at apex (Li et al. 2012: fig. 34)............ M. quadrifidus Li, Bocak & Pang, 2012
- Phallus of aedeagus present with two small processes at apex (e.g. Figs 3B, E, K; Kazantsev 2001: figs 2, 5; 2002: fig. 2, 6). ................................................................................................... 5
5. Antennomere III triangular in male (Fig. 2B; Kazantsev 2002: fig. 1); aedeagus with apical part of phallus expanded distad in ventral view (Fig. 3E; Kazantsev 2002: fig. 2)..................................... M. gansuensis Kazantsev, 2002
- Antennomere III lamellate in male (e.g., Figs 2A, D; Kazantsev 2001: figs 1, 4); aedeagus with apical part of apical part progressively constricted distad in ventral view (e.g. Figs 3B, K; Kazantsev 2001: figs 2, 5, 2002: fig. 6)................ 6
6. Lamella of antennomere III 0.8 times as long as joint itself (Kazantsev 2001: fig. 1); subapical part of phallus feebly inflated laterally in ventral view, 2.5 times as wide as basal part (Kazantsev 2001: fig. 2)........... M. yunnanus Kazantsev, 2001
- Lamella of antennomere III at least 1.1 times as long as joint itself (Fig. 2A, D); subapical part of phallus strongly inflated laterally in ventral view, nearly 3.0 times as wide as basal part (Figs 3B, K; Kazantsev 2001: fig. 5; 2002: fig. 6).......... 7
7. Pronotum and elytra dark red; subapical part of phallus flat ventrally in lateral view (Kazantsev 2001: fig. 6)...................................................................................... M. shaanxiensis Kazantsev, 2001
- Pronotum and elytra orange red or light red (e.g., Fig. 2D); subapical part of phallus inflated ventrally in lateral view (e.g., Figs 3B, K; Kazantsev 2002: fig. 7)........................................................................... 8
8. Elytra strongly widened posteriorly, 3.1 times longer than humeral width (Fig. 2D); apical part of phallus abruptly constricted distad then parallel-sided in ventral view (Fig. 3K)........................................... M. subapicis sp. nov.
- Elytra feebly widened posteriorly, 4.3 times longer than humeral width (Fig. 2A); apical part of phallus progressively constricted distad in ventral view (Fig. 3C; Kazantsev 2002: fig. 6).............................. M. oreophilus Kazantsev, 2002
description: Published as part of Du, Ruolan, Yang, Yuxia, Yang, Xingke & Liu, Haoyu, 2024, A taxonomic study on the nominate subgenus Macrolycus Waterhouse, 1878 from China (Coleoptera, Lycidae), pp. 358-366 in Zootaxa 5424 (3) on pages 364-365, DOI: 10.11646/zootaxa.5424.3.4, http://zenodo.org/record/10821192