Luciuranus, Silveira, Khattar & Mermudes, 2016

Da Silveira, Luiz F. L., Souto, Paula M. & Mermudes, J. R. M., 2018, Four new species of Luciuranus fireflies from the Brazilian Atlantic Rainforest (Coleoptera: Lampyridae), Zootaxa 4413 (1), pp. 173-186 : 175

Key to Luciuranus species (males only)

1 - Pygidium up to 2x longer than sternum VIII greatest length ( Fig. 12 )............................................ 2

1’- Pygidium at least 3x longer than sternum VIII greatest length ( Fig. 68 )........................................... 4

2 - Eye big (slightly narrower than distance between eyes), pygidium with median third sinuose ( Figs. 6, 10 ) (Serra da Man- tiqueira Mountain Range)............................................................. L. magnoculus sp. nov.

2’- Eye small (half as wide as distance between eyes), pygidium with median third rounded ( Figs. 34, 38 ) (Serra do Mar Mountain Range: Serra dos Órgãos Massif)......................................................................... 3

3 - Sternum IX with apices truncate, arms with internal margins subparallel; parameres with stout basal projections fused medially ( Figs. 43, 44 ) (Serra do Mar Mountain Range: Serra dos Órgãos Massif)........................ L. desideratus sp. nov.

3’- Sternum IX with apices acute, arms with internal margins divergent posterad, stout basal projections touching basally (Silveira et al. 2016: Fig. 33 )............................................... L. josephi Silveira, Khattar & Mermudes, 2016

4 - Pygidial groove present ( Figs. 67, 68 )..................................................................... 5

4’- Pygidial groove absent ( Figs. 84–85 ) (Serra do Mar Mountain Range: Tijuca Massif).......... Luciuranus carioca sp. nov.

5 - Lateral margins of pygidium subparallel, with a medial subquadrate projection (Silveira et al. 2016: Figs. 52–54 ) (Serra dos Órgãos Mountain Range)............................... Luciuranus jameshooki Silveira, Khattar & Mermudes, 2016

5’- Lateral margins of pygidium strongly convergent posterad (Silveira et al. 2016: Figs. 73–75 ).......................... 6

6 - Arms of sternum IX slightly asymmetric in length, symmetric in apical width ( Figs. 69–71 )..... Luciuranus takiyae sp. nov.

6’- Arms of sternum IX strongly asymmetric in length and apical width (Silveira et al. 2016: Figs. 78 , 98 ).................. 7

7 - Elytra dark-brown, but lateral margins distinctly pale yellow; left half of sternum IX longer than right in ventral view; pygidial keels symmetrical and convergent posterad, subapically indented in lateral view (Silveira et al. 2016: Figs. 67 , 78, 73–75 , respectively) (Serra da Mantiqueira Mountain Range)............ Luciuranus sinistrus Silveira, Khattar & Mermudes, 2016

7’- Elytra entirely dark-brown, right half of sternum IX longer than left in ventral view; pygidial keels asymmetrical and elliptic ventrad, somewhat straight or sinuose in lateral view (Silveira et al. 2016: Figs. 87 , 98, 94 , respectively) (Serra da Mantiqueira Mountain Range).......................................... Luciuranus dextrus Silveira, Khattar & Mermudes, 2016

Figures

FIGURES 2–18. Luciuranus magnoculus sp. nov., male. 2–4 habitus 2 dorsal, 3 lateral, 4 ventral; 5 antenna, dorsal; 6 head, frontal; 7 head and prothorax, lateral; 8 pronotum and mesoscutellum, dorsal; 9 abdomen, detail of ventral view; 10 pygidium, dorsal; 11 sternum VIII and pygidium, detail of lateral view; 12 sternum VIII, ventral; 13–15 sternum IX, 13 dorsal, 14 lateral, 15 ventral; 16–18 aedeagus 16 dorsal, 17 lateral, 18 ventral.Scale bar 2–4: 1 mm; 5: 1 mm; 6–8: 200 µm; 9–18: 200 µm.

FIGURES 58–74. Luciuranus takiyae sp. nov., male. 58–60 habitus 58 dorsal, 59 lateral, 60 ventral; 61 antenna, dorsal; 62 head, frontal; 63 head and prothorax, lateral; 64 pronotum and mesoscutellum, dorsal; 65 abdomen, detail of ventral view; 66 pygidium, dorsal; 67 sternum VIII and pygidium, detail of lateral view; 68sternum VIII, ventral; 69–71 sternum IX, 69 dorsal, 70 lateral, 71 ventral; 72–74 aedeagus 72 dorsal, 73 lateral, 74 ventral. Scale bar 58–60: 1 mm; 61: 500 µm; 62–64: 200 µm; 65–74: 500 µm.

FIGURES30–46.Luciuranus desideratus sp.nov., male.30–32 habitus 30 dorsal, 31 lateral,32 ventral;33antenna, dorsal;34 head, frontal; 35 head and prothorax, lateral; 36 pronotum and mesoscutellum, dorsal; 37 abdomen, detail of ventral view; 38 pygidium, dorsal; 39 sternum VIII and pygidium, detail of lateral view; 40sternum VIII, ventral; 41–43 sternum IX, 41 dorsal, 42 lateral, 43 ventral; 44–46 aedeagus 44 dorsal, 45 lateral, 46 ventral. Scale bar 30–32: 1 mm; 33: 500 µm; 34–36: 200 µm; 37–46: 500 µm.

FIGURES 75–91. Luciuranus carioca sp. nov., male. 75–77 habitus 75 dorsal, 76 lateral, 77 ventral; 78 antenna, dorsal; 79 head, frontal; 80 head and prothorax, lateral; 81 pronotum and mesoscutellum, dorsal; 82 abdomen, detail of ventral view; 83 pygidium, dorsal; 84 sternum VIII and pygidium, detail of lateral view; 85sternum VIII, ventral; 86–88 sternum IX, 86 dorsal, 87 lateral, 88 ventral; 89–91 aedeagus 89 dorsal, 90 lateral, 91 ventral. Scale bar 75–77: 1 mm; 78: 500 µm; 79–81: 200 µm; 82–91: 500 µm.

FIGURES 47–57. Luciuranus desideratus sp. nov., female.47–49 habitus 47 dorsal, 48 lateral, 49 ventral; 50 antenna, dorsal; 51 head, frontal; 52 head and prothorax, lateral; 53 pronotum and mesoscutellum, dorsal; 54 abdomen, detail of ventral view; 55 pygidium, dorsal; 56 sternum VIII, ventral; 57 ovipositor,ventral.Scale bar 47–49: 1mm; 50:500 µm; 51–53:200 µm; 54– 57:500 µm.

FIGURES92–102. Luciuranus carioca sp. nov., female.92–94 habitus 92 dorsal, 93 lateral, 94 ventral; 95 antenna, dorsal; 96 head, frontal; 97 head and prothorax, lateral; 98 pronotum and mesoscutellum, dorsal; 99 abdomen, detail of ventral view; 100 pygidium, dorsal; 101 sternum VIII, ventral; 102 ovipositor, ventral. Scale bar 92–94:1 mm; 95: 500 µm; 96–98: 500 µm; 99– 102: 200 µm.