Paraburcus alaesignatus (Ingrisch, 1987) Hugel & Desutter-Grandcolas, 2021

Hugel, Sylvain & Desutter-Grandcolas, Laure, 2021, New intertidal crickets from Comoros and Mascarene islands (Orthoptera Trigonidiidae: Nemobiinae: Burcini), Zootaxa 4995 (1), pp. 1-26 : 21-23

Remarks on Speonemobius Chopard, 1924

Eight species are currently considered as belonging to Speonemobius Chopard, 1924 . This genus appears very heterogeneous, displaying very diverse male forewings (with or without distinct mirror) and male genitalia (elongated and narrow pseudepiphallus as in Burcini , or nemobiini like). Therefore, this genus needs to be reviewed since it most likely includes species belonging to different tribes, and genitalia of Speonemobius type species should be examined to define whether this genus should be kept in Burcini .

Importantly, Speonemobius type species Speonemobius decoloratus Chopard, 1924 has a distinct mirror. This is not the case for Speonemobius alaesignatus Ingrisch, 1987 which has genitalia and forewings corresponding to Paraburcus Gorochov, 2018 ( Cigliano et al., 2021). It is worth noting that this species occurs on beaches as other Burcini . We, therefore, propose to temporarily transfer Speonemobius alaesignatus Ingrisch, 1987 to Paraburcus Gorochov, 2018 as Paraburcus alaesignatus (Ingrisch, 1987) n. comb., but this will need confirmation by direct examination of male genitalia.

Speonemobius littoreus has been described from coralline cliffs boarding the sea in Somalia.

This species displays the external morphology typical of Burcini . All non-genitalic characters correspond to either Gabusibius n. gen., Malakapobius n. gen., Burcus or Paraburcus . Unfortunately, male genitalia of type and paratype specimens have been destroyed during failed attempts to dissect them (communication by Marco Vannini), but an intact male specimen may still exist in BMNH (not examined). Male FW of S. littoreus paratypes appears closer to Gabusibius n. gen., with shorter chords and larger anterior field ( Fig. 60 ). For this reasons, we tentatively propose to place it under this genus as Gabusibius ? litoreus (Vannini & Chelazzi) n. gen. n. comb.

Figures

FIGURES 57–61. G.? litoreus (Vannini & Chelazzi, 1978) n. gen. n. comb. paratypes. 57–58, male in right side view (57) and dorsal view (58). 59, same, face. 60, right FW, flattened. 61, Ovp in left side view (top) and ventral view (bottom).