Pygoluciola insularis ( Olivier 1883 ) Ho, 2019

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 : 130-132

Pygoluciola insularis ( Olivier 1883) comb. nov.

Figs 394−404

Luciola insularis Olivier 1883: 328 ; 1902: 81. Gorham 1903: 326.

Type. Female. INDIA. Andaman Islands . Labelled 1. yellow label with handwritten “ Luciola insularis’ and printed ‘Ern. Oliv.’; 2. Printed ‘specimen typicum originale auctoris Ern Olivier’; 3 two handwritten labels both “ Andaman’. ( MNHN) ( Fig. 400 ) .

Other specimens examined. Andaman Islands. male, female Atkinson collection 92–3 ( NHML). Roepstorff male ( NHML). Nicobars (Roepstorff) male ( NHML).

Diagnosis. 7.1–8.0 mm long; superficially similar to Aus. flavicollis in pronotal and elytral colouration ( Figs 394−399 ); orange pronotum, brown elytra with brown apex and basal ¼ orange and orange lateral margin which occupies 1/3 elytron width in one male and narrower in others. Differing most obviously in the outline of V7 9 Figs 397, 398 ) which has a rounded posterior margin and the LO fills this sternite completely; in Aus. flavicollis the LO in V7 is retracted from lateral and posterior margins and there is a well-defined and apically emarginated MPP. Female macropterous associated by label data and similarity of colouration. One of several species assigned here to Pygoluciola which have an aedeagal sheath sternite terminated by a boomerang shaped piece ( Fig. 401 ), and in which the aedeagus is wider across the middle, and the membranous apical portions of the LL are wider at their bases than at their apices ( Figs 402, 403 ).

Redescription of male. 7.1–8.0 mm long. Colour ( Figs 394−399 ): pronotum, MN and MS orange; elytra brown with brown apex, narrow orange suture and wider lateral margin which occupies from 1/5 to 1/3 elytral width; head between eyes and incomplete antennae and palpi dark brown; venter of thorax orange, legs incomplete, legs 1 with orange bases and dark brown tibiae and tarsi; legs 3 with orange colour extending almost to tip of tibiae, tarsi dark brown; basal abdominal ventrites very dark brown; LO in V6, 7 creamy white; all tergites dark brown, with T4–8 almost black. Pronotum: subparallel sided (A = B = C); posterolateral corners well defined projecting as far as median posterior margin. Elytron: subparallel sided; inner two interstitial lines visible but not strongly defined. Head: GHW 7 x SIW; ASD <ASW; antennae incomplete, no segments obviously expanded, all segments elongate slender longer than wide. Mouthparts: palpi incomplete.Abdomen ( Figs 397−399, 404 ): LO occupying all of V6, 7; V7 with evenly rounded posterior margin, and no MPP. T8: with rounded posterior margin, and slightly truncated corners; lateral margins expanding slightly before corners; anterolateral prolongations very slender, not bearing membranous projection on inner ventral surface; rounded posterior margin does not incline ventrally. Aedeagal sheath ( Figs 401, 404 ): sternite expanding gradually with apex terminated by a ‘boomerang’ shaped hairy piece; tergite shows small pieces at sides which may be part of the extra piece seen in other species. Aedeagus ( Figs 402, 403 ): approximately twice as long as wide; basal sclerotized section of LL widest across area where the membranous parts of the LL arise, only slightly separated along their middorsal length and with base asymmetrical, produced strongly to left; ML reaching to posterior margin of basal portion; apical membranous sections of LL wider at base than at apex; well defined hairy membranous sausage shaped lobes arising from ventral surface just behind inner origins of membranous sections of LL.

Figures

FIGURES 394−404. Pygoluciola insularis comb. nov. 394, 395, 400 type female (MNHN); 396−399, 401−404 Andaman Islands males (NHML). 394, 397 habitus ventral; 395, 396 habitus dorsal; 398, 399 abdomen: 398 ventral; 399 dorsal; 400 type label; 401 aedeagal sheath ventral; 402−403 aedeagus: 402 ventral; 403 dorsal; 404 tergite 8 ventral with aedeagal sheath and aedeagus contained.