Luciola horni Bourgeois 1905

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 : 91-93

Luciola horni Bourgeois 1905

Figs 258−269

Luciola horni Bourgeois 1905: 128 . McDermott 1966: 105.

Type. Male SRI LANKA (as Ceylon). Labelled 1. Handwritten ‘ Amaradhapura W. Horn; 2 handwritten ‘Horni ♂ Bourg.’ ( MNHN). Figs 258, 259, 269 .

Other specimens examined. SRI LANKA (as Ceylon). Halupahani Haldummulle 1904- 171 male ( LB found this specimen in NHML standing under Luciola hirticeps ; NHML) Figs 260−265, 267, 268 . INDIA. Nedungadu Tanjore Distr. India orientalis male (Prague) Fig. 266 .

Diagnosis. A small (6 mm long) parallel sided species with dark brown elytra and orange to yellow pronotum having a wide median dark marking extending to both anterior and posterior margins. LO in V7 entire, with posterior margin of V7 having a short rounded MPP.

Male redescription. 6 mm long. Colour ( Figs 258, 259, 266, 267 ): pronotum orange to yellow with wide median dark marking extending to both anterior and posterior margins; MN and MS paler yellow; elytra very dark brown; head between eyes black (antennae and mouthparts incomplete); venter of thorax brown, legs pale yellowish-brown with slightly darker brown tarsi; ventrites anterior to LO with median darker markings, extending to sides with narrow anterolateral patch pale in V5, with pale lateral margin (approx.1/4 ventrite width) in V4 and median dark marking occupying less than 1/3 ventrite width in V3; terminal tergites pale. Pronotum ( Figs 258, 266, 267 ): subparallel sided, width less than humeral width. Elytron: parallel sided; interstitial lines 1, 2 visible but not as well elevated as suture. Head: GHW 6 x SIW; ASD <ASW. Antennae incomplete. Legs incomplete. Abdomen ( Fig. 259 ): short rounded MPP present on V7. T8 ( Fig. 268 ): with elongate slender anterolateral arms which are longer than the posterior entire part of T8; posterior margin entire, median area rounded and produced a little beyond rounded corners.Aedeagal sheath ( Figs 260, 261, 265 ): sternite terminated by elongated medially emarginated hairy lobe; median anterior margin of tergite prolonged and apically truncate. Aedeagus ( Figs 262−264 ): ML wide in basal ¾, narrowing in apical ¼ where it is ¼ as wide as basal portion; apices of LL narrowed and strongly divergent; ML considerably shorter than LL.

Remarks. The Indian specimen is included here because of similarities in colour pattern to the type, and similarities in genitalic patterns to the Sri Lankan specimen. The type was not dissected and assignments made here are based on similarity of general habitus only. The Sri Lankan male in NHML was standing under a Luciola hirticeps label.

Figures

FIGURES 258−269. Luciola horni males. 258, 259, 269 type male; 260−265, 267, 268 Halupahani male (NHML); 266 India male (Prague). 258, 266, 267 habitus dorsal; 259 habitus ventral; 260, 261, 265 aedeagal sheath: 260 ventral; 261, 265 dorsal (260, 261 under transmitted light from below); 262, 263 aedeagus: 262 ventral; 263 right lateral; 268 tergites 7, 8 dorsal; 269 label. Scale lines are 1 mm.