Posidippus Stål, 1874

Subgenus Posidippus Stål, 1874

Type species (in original binomen): Steirodon dentiferum Walker, 1869 View in CoL , by subsequent designation ( Kirby 1906).

Brief diagnosis. This subgenus most similar to subgenus Peucestes (characters under numbers 1, 4, 5 in Steirodon View in CoL s. str. diagnosis; Figs 58 View Figs 58–73 , 87 View Figs 83–105 ) but distinguished from it by three other characters (numbers 2, 3 and 6): dorsolateral denticulated keels of pronotum low and slightly arcuate in profile ( Figs 60, 61, 63, 64, 67 View Figs 58–73 ); middle and hind tibiae almost not widened or barely widened in proximal part

( Figs 56, 57 View Figs 38–57 ); female abdomen having last (tenth) tergite with a pair of large apical lobules (as in Peucestes View in CoL ), but its other tergites also with a pair of rath- er long lobules (instead small tubercles) on posteromedian edge of ninth tergite (approximately as in Fig. 139 View Figs 126–144 ). From Steirodon View in CoL s. str., this subgenus distinguished by same characters and one additional character (number 3): tegmina with anterior branch of RS ending in anal edge of tegmen significantly before tegminal apex (as in Peucestes View in CoL ; Figs 18, 19, 21, 22 View Figs 16–23 ), but some specimens of S. (Posidippus) dentiferum View in CoL with this branch almost as in Steirodon View in CoL s. str. ( Fig. 16 View Figs 16–23 ).

Composition (in original binomens). Steirodon dentiferum Walker, 1869 View in CoL (type locality unknown; distributed from Surinam and Colombia to northern Argentina); Posidippus stalii Brunner-Wattenwyl, 1878 View in CoL [= Steirodon (Posidippum) dentiferoides Emsley, 1970 View in CoL , syn. n. and possibly Steirodon (Posidippus) parastahli Piza, 1979 View in CoL ; Cadena-Castañeda (2016: figs 23–25) erroneously synonymized latter name with S. (Steirodon) ponderosum View in CoL , although first branch of tegminal RS in holotype of S. parastahli View in CoL ending before tegminal apex but not at this apex, and pronotal denticulated keels of this holotype rather low, slightly arcuate in profile and with rounded denticles] (first two described from southern Brazil, but latter one, from northern Brazil; P. stalii View in CoL distributed also in some other eastern states of Brazil including Para); Posidippus dohrni Brunner-Wattenwyl, 1891 View in CoL (described from state Para in Brazil; distributed also in central part of Brazil as well as in Peru and Paraguay); Steirodon (Posidippus) major View in CoL nom. n. [= Posidippus validus Saussure et Pictet, 1898 View in CoL , junior secondary homonym of Steirodon (Steirodon) validum Stål, 1874 View in CoL ] ( P. validus View in CoL described from Nicaragua and evidently erroneously synonymized with S. stalii View in CoL ; S. major View in CoL nom. n. distributed from Mexico to Colombia and Venezuela); Steirodon (Posidippus) minor View in CoL sp. n.; possibly Posidippus barellus Pictet, 1888 View in CoL (described from French Guiana), P. flavolineatus Brunner, 1915 View in CoL (described from central part of Brazil) and Steirodon (Posidippum) maroniensis Emsley, 1970 View in CoL (described from French Guiana).

The latter three species were also attributed to this subgenus by Emsley (1970) and differs from the previous five species of this subgenus in an absent or almost absent notch of the anal edge of the male left tegmen after its stridulatory vein (near it); this notch is more or less developed in the first three species (including type one) and may be an additional character characterizing this subgenus (in such case, the subgeneric position of S. barellum View in CoL , S. flavolineatum View in CoL and S. maroniense View in CoL is in need of checking).