Luciola filiformis Olivier 1913c

Ho, - Z., 2019, The Luciolinae of S. E. Asia and the Australopacific region: a revisionary checklist (Coleoptera: Lampyridae) including description of three new genera and 13 new species, Zootaxa 4687 (1), pp. 1-174 : 91

Luciola filiformis Olivier 1913c

Luciola filiformis Olivier 1913c: 271 . Chȗjô & Sâtô 1971: 15. Chen 2003: 170. Kawashima et al. 2003: 247. Jeng et al. 2003b: 260. Fu 2014: 23.

Luciola yayeyamana Matsumura 1918: 39 . Chȗjô & Sâtô 1971: 15 (synonymy).

Type. Syntype male. TAIWAN (as Formosa). Examined by M-L Jeng ( MNHN Olivier Box 68) .

Diagnosis. A small species (around 5 mm long) with a reddish or yellow pronotum having a median dark marking which reaches the anterior but not the posterior pronotal margin, black MS and elytra, and female brachelytral; the posterior margin of the aedeagal sheath sternite is rounded entire and the median anterior margin of the sheath tergite is widely prolonged and apically rounded. Larvae have laterally explanate tergal margins.

Remarks. We assign filiformis to Luciola s. str. on the basis of illustrations in Fu (2014: 23). Differing altitudes seem to affect both male colour patterns and length of the abbreviated female elytra. Chen (2003: 171) depicts a male from ‘middle altitudes’ with orange red MS, while on page 170 the male from ‘lower altitudes’ has a black MS with narrow paler margins. Females from ‘middle altitudes’ have longer elytra (about twice as long as median pronotal length) than those from lower altitudes. In the following reference the figure of the aedeagus may involve also at least part of the aedeagal sheath and is difficult to interpret (Chȗjô & Sâtô 1971 fig. 2 page 14).