Pezodrymadusa dentata Ünal, 2018

Ünal, Mustafa, 2018, Tettigoniinae (Orthoptera: Tettigoniidae) from Turkey with key to genera and descriptions of six new species, Zootaxa 4432 (1), pp. 1-66 : 13

Pezodrymadusa dentata Ünal , sp. nov.

( Figs. 349–357 )

Description. Male (holotype): Head wide, rounded ( Fig. 352 ). Fastigium of vertex 1.2 times wider than antennal scapus, dorsally as wide as one eye. Pronotum ( Figs. 349–351 ) with smooth surface; prozona almost cylindrical, metazona flattened, without median and lateral carinae; 1.7 times longer than its height and almost as long as fore femur; anterior margin with a weak concavity in the middle, posterior margin very broadly rounded; shoulder incision very weak in lateral view. Tegmina ( Figs. 349–351 ) brachypterous, reaching end of second abdominal tergite; 1.2 times shorter than pronotum. Hind femur ( Fig. 349 ) 2.7 times longer than pronotum, with a row of small spines (6–7) ventrally on both sides. Prosternum with two spine-like projections in the middle; meso- and metasternum with triangular protruding backwards. Last abdominal tergite ( Figs. 353, 356 ) wide, strongly protruding posteriorly in the middle with two divergent, long projections. Cercus ( Figs. 356–357 ) rough, large reaching far beyond the projections of last abdominal tergite; slightly cylindrical, slightly bent inwards, with a blunt inner tooth dorsally; apex rounded with small apical tooth, a little longer than epiproct; with a tooth at the base, downwards inside as in the other congeners. Subgenital plate ( Fig. 354 ) slightly longer than wide, with median and lateral carinae; posterior margin with a distinct triangular incision. Styli very short. Titillators damaged; it is understood from the broken pieces of titillators ( Fig. 355 ), in accordance with the usual structure in the genus the basal arms strongly upcurved, the apical arms with a row of teeth.

Female: Unknown.

Color. Body unicolor pale creamish milky brown. Lateral edges of fastigium of vertex weakly darkened. Eye slightly darkened to the scapus base. Ocellus only indicated by a weak darker middle spot. Base of scapus weakly darkened. Frons without a dark band between the eyes. Mandibles bright. Tegmina dark brown; costal and subcostal fields and apex of the medial field with bright spots.

Diagnosis. This new species is recognized by the presence of inner tooth of male cerci (None of the known species of the genus Pezodrymadusa have inner tooth of male cerci). It is similar to Pezodrymadusa indivisa Karabağ by the general appearance and somewhat coloration. But along the unique male cerci the absence of frontal black band between the eyes (with a distinct black band in P. indivisa ) are different.

Measurements (mm). Holotype: body 28; pronotum 8; tegmina 6.5; hind femur 22.

Material examined. TURKEY: [Hakkari, Kato Dağı,] Süvarihalil Geçidi , 2400 m, 14.9.1985, 1 male (holotype) (leg. H. Hacker) ( MHNG).

Etymology. The Latin “dentatus” means toothed, regarding the presence of inner tooth of male cerci of this new species, which is the first for the genus.

Remarks. Harz (1992-MS) described a new genus and species, Schulmeisteri schulmeisteri , in the family Ephippigeridae from SE Turkey in the “ Articulata-Express II ”. But this issue was not validly published according to the Code ( Ingrisch & Willemse 2004). Because of this reason neither Detzel (1996), nor Heller (1998, 1999) placed this issue and the taxa proposed by Harz (1992-MS) in their lists of the papers and taxa of Harz ( Hollier & Bruckner 2015). Moreover there is not any issue as “Articulata-Express II, Janaur 1992” in the official website of Articulata (http://dgfo-articulata.de/articulata) (March 2018). The author ( Ünal 2011) determined that the only specimen of this invalid species is a member of Tettigoniinae . Here, this single male has been studied in detail from the photographs and the description of Harz. This species is undoubtedly a member of the genus Pezodrymadusa and because of the structure of male cerci it is a new species. Unfortunately like many other parts of the holotype ( Hollier & Bruckner 2015: 197) male cerci are now missing. But the cerci were sufficiently described and photographed in Harz, 1992 -MS. Therefore the description is prepared partly from Harz (1992-MS).

I tried to find this interesting species in the type locality in a restricted time because of the safety problem caused by the terrorists in those mountains. I found 2 males which have very similar appearance with this species and thought that I succeeded, but they were P. indivisa . I prefer to give valid taxonomic status to this distinct taxon.

Figures

FIGURES 349–357. Pezodrymadusa dentata sp. nov., male: 349 habitus, left side; 350 ditto, right side; 351 head, pronotum and tegmina, dorsal view; 352 head, frontal view; 353 end of abdomen, dorsal view; 354 subgenital plate; 355 titillator (damaged); 356 last tergite and right cercus, dorsal view (produced from Harz 1992-MS); 357 right cercus, ventral view (produced from Harz 1992-MS) (Figs. 349–355 provided by P. Schwendinger).