Bioacoustics of Zoosphaerium platylabum

1. Movable finger of posterior telopods very thick, <2 times as long as wide, width strongly decreasing towards tip; apically with minute sclerotized nubs on posterior as well as on anterior side.....................................................................................................................................................2 – Movable finger slender, at least 3 times as long as wide, width not decreasing towards tip; apically sclerotized structures only present on posterior side..........................................................3 2. Movable finger 1.2 times as long as wide, at inner margin with a small membranous lobe. First stigmatic plate greatly enlarged, lobe not triangular or tapering towards tip. Antenna with more than 35 apical cones ................................................... Z. platylabum (de Saussure & Zehntner, 1902 ) – Movable finger 1.6 times as long as wide, at inner margin without lobe. First stigmatic plate large, lobe triangular and tapering towards well-rounded tip. Antenna with 23–35 apical cones .. .................................................................................................. Z. pseudoplatylabum Wesener, 2009 3. Anterior edges of thoracic shield slightly projecting towards head. Movable finger shorter than fixed finger ........................................................................................... Z. solitarium Wesener, 2009 – Anterior edges of thoracic shield well-rounded. Movable finger at least slightly longer than fixed finger..................................................................................................................................................4 4. Male harp with two stridulation ribs. Movable finger 3 times as long as wide.....................5 – Male harp with a single stridulation rib. Movable finger>4 times as long as wide................7 5. Movable finger on posterior telopods with five spines and no membranous lobes. Immovable finger of posterior telopod slender, 4 times as long as wide, apical part tapering and curved towards movable finger. Only 7 or 8 ventral spines on legs. Found in eastern rainforests, Masoala Peninsula .............................................................................................................................. Z. masoala sp. nov. – Movable finger on posterior telopods with spines and at least one large, triangular membranous lobe. Immovable finger of posterior telopod wide, 2.7 times as long as wide, not curved, parallel to movable finger, apically only weakly tapering. 10 or more ventral spines on legs. Found in western dry forests..........................................................................................................................................6 6. Light brown. Antennae with four apical cones. Third podomere of anterior telopods lacking crenulated teeth ..................................................................................................... Z . beanka sp. nov. – Olive green. Antennae with>15 apical cones. Third podomere of anterior telopods laterally with 2 or 3 crenulated teeth ...................................................................... Z. tsingy Wesener, 2009 7. Tergites shiny black, appendages red. Anal shield strongly developed, shaped like a helmet. Fixed finger of posterior telopod slightly curved towards movable finger. Operculum of vulva deeply notched, divided into two sharp ‘hornsʼ. Female washboard on each side with a single stridulation rib .................................................................................... Z. corystoides Wesener, 2009 – Tergites light brown or olive-brownish, appendages brown or green. Anal shield well-rounded. Fixed finger of posterior telopod parallel to movable finger.........................................................8 8. Up to 30 mm long. Movable finger of posterior telopod with 25 teeth, three spines located at apex. Endotergum with two dense rows of long marginal bristles, protruding above tergite margin. (Female unknown) ............................................................................... Z. voahangy sp. nov. – Up to 55 mm long. Movable finger of posterior telopod with ca 15 teeth, three spines located at regular intervals along entire margin. Endotergum with a single row of short, dense marginal bristles, protruding up to ⅔ of distance towards tergite margin. Operculum of vulva only very shallowly notched, forming two sharp horns. Female washboard with four stridulation ribs ............. ............................................................................................................ Z. broelemanni Wesener, 2009

1 . Movable finger of posterior telopods very thick, <2 times longer than wide (Fig. 36D). Podomere width strongly decreasing towards tip; apically with minute sclerotized nubs on posterior as well as on anterior side (Fig. 36C). .. 2 - Movable finger slender, at least 3 times longer than wide. Podomere width not decreasing towards tip; apical sclerotized structures only present on posterior side. ................................................................................................. 3 2 . Movable finger 1.2 times longer than wide, at inner margin with small membranous lobe. First stigmatic plate greatly enlarged, lobe not triangular or tapering towards tip. Antenna with more than 35 apical cones. ..................... ............................................................................................................... Z. platylabum ( de Saussure & Zehntner, 1902 ) - Movable finger 1.6 times longer than wide (Fig. 36D), at inner margin without lobe (Fig. 36C). First stigmatic plate large, lobe triangular and tapering towards well-rounded tip. Antenna with 23–35 apical cones (Fig. 37A). .............. ........................................................................................................................................... Z. pseudoplatylabum , n. sp. 3 . Anterior edges of thoracic shield slightly projecting towards head (Fig. 39B). Movable finger shorter fixed finger (Fig. 40F). ...................................................................................................................................... Z. solitarium , n. sp. - Anterior edges of thoracic shield well-rounded. Movable finger at least slightly longer than fixed finger. .............. 4 4 . Operculum of vulva with two well-rounded lobes, lateral lobe twice as wide as inner one (Fig. 42A). Male harp with two stridulation ribs (Fig. 42B). Movable finger 3 times longer than wide (Fig. 47F). ....................... Z. tsingy , n. sp. - Operculum of vulva with two sharp-edged lobes, both lobes of similar width (Figs 45B; 48C). Male harp with single stridulation rib (Fig. 45D). Movable finger 4 or 5 times longer than wide (Fig. 45F). .............................................. 5 5 . Up to 35 mm long. Tergites shiny black, appendages red. Anal shield strongly developed, shaped like a helmet. Operculum of vulva deeply notched, divided into two sharp 'horns' (Fig. 45B). Female washboard on each side with single stridulation rib (Fig. 45A). Fixed finger slightly curved towards movable finger (Fig. 45F). ............................ ........................................................................................................................................................ Z. corystoides , n. sp. - Up to 55 mm long. Tergites and appendages dirty olive-brownish. Anal shield well-rounded. Operculum of vulva only very shallowly notched, forming two sharp horns (Fig. 48C). Female washboard with four stridulation ribs. Fixed finger running parallel to movable finger (Fig. 48H). ....................................................... Z. broelemanni , n. sp.