Glomeremus pileatus (Krauss, 1902)

Massa, Bruno, 2009, New and less known Orthoptera (Insecta) from the island of Socotra (Yemen), Zootaxa 2132, pp. 53-64 : 55

Glomeremus pileatus (Krauss, 1902)

Material examined. Socotra , Di Lisha 4.IV.2008, B.Massa on Croton sp. (13); Ra’s Shoab 6.IV.2008, B.Massa (1Ƥ); Wadi Zerig 8.IV.2008, B.Massa (13); Wadi Ayev 20.II.2009, P.Lo Cascio & F.Griti (1Ƥ).

Remarks. The typical pattern of the pronotum with two dark bands in the middle of the pronotum ( Figs. 1, 2 ) and microscopic stridulatory ridges, covered by setae, along the sides of the 2nd and 3rd terga consent to ascribe them to G. pileatus . Types (1 male and 2 females) came from Ra’s Shoab ( Krauss 1907), and according to Uvarov and Popov (1957) and Wranik (2003) it appears a rare species, known on the area of airport and Hadibou plain. The ovipositor is very thick, with an evident central furrow along its upper side ( Figs. 3, 5 ); the subgenital plate is provided with an arc-like swelling ( Figs. 4, 6 ). This species, lacking of scale-like tegmina, is possibly more related to G. capitatus Uvarov, 1957 than to G. mediopictus Uvarov, 1957 . It shares with the latter the presence of stridulatory ridges, lacking in the former; conversely, the ovipositor of G. mediopictus ( Fig. 7 ) and the general structure of the body are weaker than those of G. pileatus .

Figures

FIGURES 1 – 7. Glomeremus. Figs 1 – 6: G. pileatus, two specimens from above (1, 2), ovipositor (3), subgenital plate (4), last tergites (5) and last sternites (6); 7: Ovipositor of G. mediopictus.