Four new species of Luciuranus fireflies from the Brazilian Atlantic Rainforest (Coleoptera: Lampyridae) Author Da Silveira, Luiz F. L. Author Souto, Paula M. Author Mermudes, J. R. M. text Zootaxa 2018 2018-04-20 4413 1 173 186 journal article 30224 10.11646/zootaxa.4413.1.7 762fe4d7-c776-4f9a-97d9-fc85969f57f0 1175-5326 1221996 D8C6FC14-7D26-4B48-8791-FD280FA14CCC 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