Kuzicus multidenticulatus Tan, Dawwrueng, Artchawakom

Tan, Ming Kai, Dawwrueng, Pattarawich & Artchawakom, Taksin, 2015, Taxonomic review of Kuzicus Gorochov, 1993 (Tettigoniidae: Meconematinae), with two new species from Thailand and key to species, Zootaxa 3999 (2), pp. 279-290 : 286-289

Kuzicus multidenticulatus Tan, Dawwrueng, Artchawakom , new species

Figs. 7 , 8

http://lsid.speciesfile.org/urn:lsid: Orthoptera .speciesfile.org:TaxonName:470491

Material examined. Holotype (male): Thailand, Nakhon Ratchasima, Sakaerat Environmental Research Station, open area with light trap, dry evergreen, attracted to light trap, 400-450m, 13 September 2014, coll. P. Dawwrueng, N. Makbun & T. Dowwiangkan ( THNHM).

Paratype: 1 female, same locality and information as holotype ( THNHM).

Diagnosis. This species is very similar to Kuzicus aspercaudatus Sänger & Helfert, 2006 by median lobes of male tenth abdominal tergite long and slender, bent ventrad to form two lobes; and male epiphallus with apex minutely denticulated but differ by male tenth abdominal tergite with small lateral apical lobes (absent in K. aspercaudatus ); median lobe of male tenth abdominal tergite with a row of smaller teeth along the ventral margin at the apex (instead of denticulated on the dorsal and posterior margins in K. aspercaudatus ).

Description. Habitus typical of the genus ( Fig. 7 A, 7B). Description similar to Kuzicus pakthongchai sp. n. by rather large size, eyes globular and protruding. Fastigium verticis conical but with inconspicuous median sulcus ( Fig. 8 A). Last (apical) segment of maxillary palpus slightly shorter than the fourth (subapical) segment, also slightly widened apically ( Figs. 8 A, 8B). Pronotal disc with anterior and posterior margin similar to Kuzicus pakthongchai sp. n. and covering base of mirror tegmen ( Fig. 8 A). Margin of lateral lobes of pronotum slightly undulated ( Fig. 8 B). Thoracic auditory spiracle (= thoracic foramen) large and inverted pyriform ( Fig. 8 B). Parapterous, tegmen extending behind the hind knees, hindwings distinctly longer. Procoxal spur short. Meso- and metatibiae with 5 outer and 4 inner subapical spines.

Male. Tenth abdominal tergite with a pair of median lobes and lateral lobes. Median lobes long and slender; converge slightly towards one another in the middle before diverging apically, never in contact with one another; each broaden apically into a bulbous apex that contacts one another ( Figs. 8 C, 8D). At the apex, median lobes bent ventrad to form two lobes: basal lobe smaller, produced with a small and slender external tooth; apical lobe larger, produced into a larger internal tooth with a row of smaller teeth along the ventral margin ( Figs. 8 D, 8E). Lateral lobes of tenth abdominal tergite long and slender, reaching slightly before middle of median lobes, with apex obtuse ( Figs. 8 C, 8D). Epiproct concealed under tenth abdominal tergite. Cerci with basal half swollen and robust, internally with a sclerotize spine-like process; then curve internally and taper into an acute and sclerotized apex ( Figs. 8 C, 8F). Yoke-like epiphallus typical of the genus, but with distal appendages only ( Figs. 8 E, 8G). Epiphallus transverse at the base, with a very short and broad shaft that widens posteriorly; at the apex with a pair of tooth-like sclerotized processes pointing posteriorly; and with fairly thick bristles. Posterior margin producing into a trilobous plate in the middle; with lateral lobe denticulated and heavily sclerotized ( Figs. 8 E, 8G). Subgenital plate with styli relatively short and robust, gently curved outwards ( Fig. 8 E).

Female. Tenth abdominal tergite with posterior margin distinctly concave in the middle, truncated laterally; more deeply excised than Kuzicus pakthongchai sp. n. in the middle ( Fig. 8 H). Epiproct and cerci similar to Kuzicus pakthongchai sp. n. ( Fig. 8 H). Subgenital plate trapezoid ( Fig. 8 I). Ovipositor straight and very long, reaching apex of tegmen; with base slightly swollen ( Fig. 8 J). Valves smooth with acute apex; ventral valve forming a small hook at the apex ( Fig. 8 J). At the base, with two small sclerotized tooth ventrally ( Fig. 8 J).

Colouration. Unicolorous green when alive; white to ochre when preserved ( Figs. 7 A, 7B). Tegmen also with some small rounded infumated brown spots throughout, randomly and widely distributed; with cells near posterior margin infumated dark.

Measurements. See Table 2 .

Etymology. The species name refers to the numerous ventral teeth male at the apex of the median lobes of tenth abdominal tergite.

Figures

FIGURE 7. Kuzicus multidenticulatus sp. n. lateral habitus: male holotype (A) and female paratype (B). Scale bar = 10 mm.

FIGURE 8. Kuzicus multidenticulatus sp. n.: head and pronotum in dorsal (A) and lateral (B) views; male abdominal apex in lateral (C), dorsal (D) and ventral (E) views; male cercus in dorsal view (F); apex of male epiphallus in ventral view (G); female abdominal apex in dorsal (H), ventral (I) and lateral (J) views. Scale bar = 1 mm. c = cercus, ml = median lobe of tenth abdominal tergite, ll = lateral lobe of tenth abdominal tergite, al = apical lobe, bl = basal lobe, ep = male epiphallus, sg = subgenital plate.