Ybytyramoan

Silveira, Luiz Felipe Lima Da & Mermudes, José Ricardo M., 2014, Ybytyramoan, a new genus of fireflies (Coleoptera: Lampyridae, Lampyrinae, Photinini) endemic to the Brazilian Atlantic Rainforest, with description of three new species, Zootaxa 3835 (3), pp. 325-337 : 328

Key to Ybytyramoan species

1 Antennifer process indistinct ( Fig. 1 ); pronotum widest posteriad ( Fig. 18 ), elytra almost 4x longer than wide ( Fig. 16 ), abdominal sterna VI and VII with lanterns anteriorly rounded, straight posteriad, with posterolateral rounded projections (billycockshaped) ( Fig. 19 ), phallum with anterior margin not indented in dorsal view, with median teeth laterally-oriented ( Figs. 23–25 )...................................................... Ybytyramoan praeclarum Silveira and Mermudes sp. nov.

1' Antennifer process conspicuous ( Fig. 46 ); pronotum with lateral margins subparallel or slightly rounded ( Figs. 28 , 38 ); elytra more than 4x longer than wide ( Figs. 26 , 36 ); abdominal sterna VI and VII with lanterns somewhat rounded ( Figs. 29 , 39 ); phallum with anterior margin indented in dorsal view, median teeth dorsally-oriented ( Figs. 33–35 , 43–45 ).............. 2

2 Labrum strongly indented medially; pronotum slightly projected anteriad, yellowish-brown ( Fig. 28 ); elytrum enlarging toward apex, widest at apical 1/5 ( Fig. 26 ); lanterns as long as 3/4 sterna length ( Fig. 29 )....................................................................................... .. Ybytyramoan diasi Silveira and Mermudes sp. nov.

2' Labrum somewhat straight; pronotum somewhat rounded, light-yellow, disc sometimes pink ( Fig. 38 ); elytrum widest medially ( Fig. 36 ); lanterns almost as long as sterna ( Fig. 39 )........ Ybytyramoan monteirorum Silveira and Mermudes sp. nov.

Figures

FIGURES 1 – 7. Ybytyramoan praeclarum sp. nov. head. 1, frontal. 2, ventral. 3, dorsal. 4, lateral. 5, posterior. 6, occipital. 7 tentoria detail, frontal. Scale bar 1 – 7 = 1,0 mm.

FIGURES 16 – 25. Ybytyramoan praeclarum sp. nov. 16 – 17, habitus 16, dorsal. 17, ventral. 18, pronotum, dorsal. 19, abdomen, ventral. Note the lanterns shape. 20, pygidium, dorsal. 21, abdominal sternum VIII, ventral. 22, syntergite, dorsal, abdominal sternum IX, ventral. 23 – 25 aedeagus. 23, dorsal. 24, ventral. 25, lateral. Scale bars 16 – 19 = 1,0 mm, 20 – 25 = 0,5 mm.

FIGURES 46 - 47. 46. Ybytyramoan diasi sp. nov., head, frontal view. White arrows: antennifer processes, black arrow: medial indentation of labral anterior margin. 47. Ybytyramoan praeclarum sp. nov., thorax, ventral. Black arrow: metasternal keel. Scale bars 46 = 0. 5 mm, 47 = 1 mm.

FIGURES 26 – 35. Ybytyramoan diasi sp. nov. 26 – 27, habitus 26, dorsal. 27, ventral. 28, pronotum, dorsal. 29, abdomen, ventral. Note the lanterns shape. 30, pygidium, dorsal. 31, abdominal sternum VIII, ventral. 32, syntergite, dorsal, abdominal sternum IX, ventral. 33 – 35 aedeagus. 33, dorsal. 34, ventral. 35, lateral. Scale bars 26 – 29 = 1,0 mm, 30 – 35 = 0,5 mm.

FIGURES 36 – 45. Ybytyramoan monteirorum sp. nov. 36 – 37, habitus 36, dorsal. 37, ventral. 38, pronotum, dorsal. 39, abdomen, ventral. Note the lanterns shape. 40, pygidium, dorsal. 41, abdominal sternum VIII, ventral. 42, syntergite, dorsal, abdominal sternum IX, ventral. 43 – 45 aedeagus. 43, dorsal. 44, ventral. 45, lateral. Scale bars 36 – 39 = 1,0 mm, 40 – 45 = 0,5 mm.