Kuzicus pakthongchai 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: 283-286

publication ID

http://dx.doi.org/10.11646/zootaxa.3999.2.7

publication LSID

lsid:zoobank.org:pub:1441C439-AFFD-49AA-8694-DADA62200ACF

persistent identifier

http://treatment.plazi.org/id/F20687EE-FFAE-EC34-2083-F950F9776C77

treatment provided by

Plazi

scientific name

Kuzicus pakthongchai Tan, Dawwrueng, Artchawakom
status

new species

Kuzicus pakthongchai Tan, Dawwrueng, Artchawakom  , new species

Figs. 5View FIGURE 5, 6View FIGURE 6

http://lsid.speciesfile.org/urn:lsid: Orthoptera  .speciesfile.org:TaxonName: 470490

Material examined. Holotype (male): Thailand, Nakhon Ratchasima, Sakaerat Environmental Research Station, open area with light trap, N 14.50765, E 101.92772, 446.7 ± 9.7 m, dry evergreen forest, attracted to light trap, coll. M. K. Tan, H. Yeo & S. T. Toh, 27 June 2014, 2220 hours ( SERS. 14.113) ( ZRC).

Paratypes: 2 female: same locality as holotype, headquarter, N 14.51039, E 101.93057, 445.9 ± 8.5 m, mix vegetation, attracted to light, coll. M. K. Tan, H. Yeo & S. T. Toh, 29 June 2014, 2330 hours ( SERS. 14.131); open area with light trap, N 14.50763, E 101.92760, 424.0± 4.1 m, dry evergreen forest, attracted to light trap, coll. M. K. Tan, H. Yeo & S. T. Toh, 2 July 2014, 2300 hours ( SERS. 14.164) (all ZRC).

Diagnosis. This species is similar to the type species Kuzicus uvarovi  by its colouration, yellow green with small brown spots on tegmen and one large spot at stridulatory field. This species differs from K. uvarovi  by male tenth abdominal tergite with lateral lobes obtuse apically (instead of tapering); male epiphallus with a pair of tongue-shaped lateral (slightly sclerotized) processes pointing anteriorly at the apex (instead of pointing posteriorly); with posterior margin producing into a trilobous (also slightly sclerotized) plate in the middle (instead of rounded).

Description. Rather large-sized Meconematini  but habitus typical of the genus ( Figs. 5View FIGURE 5 A, 5 B). Eyes globular and protruding. Fastigium verticis conical, small (about slightly shorter than scapus length), with very weak median sulcus ( Fig. 6View FIGURE 6 A). Last (apical) segment of maxillary palpus equal in length to the fourth (subapical) segment, slightly widened apically. Pronotum covering the base of mirror of tegmen, discus curved into lateral lobe, transverse sulcus in mid length ( Fig. 6View FIGURE 6 B). Anterior margin of pronotal disc slightly convex, posterior margin triangularly rounded ( Fig. 6View FIGURE 6 A). Margin of lateral lobes of pronotum slightly undulated, humeral sinus very weak. Ventral margin of pronotal lateral lobe broadly rounded ( Fig. 6View FIGURE 6 B). Thoracic auditory spiracle (= thoracic foramen) large and oval-shaped ( Fig. 6View FIGURE 6 B). Parapterous, tegmen extending behind the hind knees, hindwings distinctly longer. Procoxal spur short and slender. Both tympana open. Protibiae with 5 outer and 4 inner subapical spines and 1 pair of apical spurs. Mesotibiae with 4 outer and 3 inner subapical spines and 1 pair of apical spurs. Metatibiae ventrally and dorsally with numerous outer and inner spines as well as 2 ventral and 1 dorsal pairs of apical spurs.

Male. Tenth abdominal tergite with a pair of median lobes and a pair of lateral lobes. Median lobes slender basally with margin between lobes truncated; after basal third, expanded abruptly (about 90 °) along external margin to form a plate which bent ventrad laterally; plate tapers apically and rotate from a horizontal to a vertical plate ( Fig. 6View FIGURE 6 C). At the apex, median lobes bent ventrad and turned slightly anteriorly and internally; forming two sclerotized teeth ventrally ( Figs. 6View FIGURE 6 C – 6 G). Median lobes remain widely spaced throughout, particularly setose along internal margin ( Fig. 6View FIGURE 6 C). Lateral lobes of tenth abdominal tergite flattened, shorter and smaller with apex obtuse ( Figs. 6View FIGURE 6 C, 6 E). Epiproct concealed under tenth abdominal tergite. Cerci stout and short; basally slightly swollen, with a short and blunt basal tooth externally; slightly narrower in the middle, slightly swollen and bent internally after middle ( Figs. 6View FIGURE 6 E, 6 G). Interiorly, cerci with a sclerotized process in the middle: longer and flattened, bladelike and bent basally ( Fig. 6View FIGURE 6 G). At the apex, cerci with a short acute sclerotized tooth along dorso-inner margin ( Figs. 6View FIGURE 6 G). Yoke-like epiphallus typical of the genus, but with distal appendages only ( Figs. 6View FIGURE 6 F, 6 G). Epiphallus transverse at the base, with a short shaft that widens posteriorly; at the apex with a pair of tongue-shaped lateral (slightly sclerotized) processes pointing anteriorly, with posterior margin producing into a trilobous (also slightly sclerotized) plate in the middle ( Fig. 6View FIGURE 6 G). Subgenital plate with styli relatively long and slender, gently curved inwards ( Fig. 6View FIGURE 6 F).

Female. Tenth abdominal tergite with posterior margin distinctly concave in the middle, truncated laterally ( Fig. 6View FIGURE 6 H). Epiproct small and triangular ( Fig. 6View FIGURE 6 H). Cerci slender and short, slightly swollen in the middle before tapering to an acute apex ( Fig. 6View FIGURE 6 H). Subgenital plate transverse, much wider than long; with posterior margin feebly notched in the middle ( Fig. 6View FIGURE 6 I). Ovipositor long with base slightly swollen; feebly sinuated ( Fig. 6View FIGURE 6 J). Valves smooth with acute apex; ventral valve forming a small hook at the apex ( Fig. 6View FIGURE 6 J). At the base, with two small sclerotized tooth ventrally ( Fig. 6View FIGURE 6 I).

Colouration. Green when alive; white to ochre in alcohol ( Figs. 5View FIGURE 5 A, 5 B). Fastigium darken yellow brown with margin along vertex black; median sulcus distinctly pale ( Fig. 6View FIGURE 6 A). Scapus with inner half yellow brown; pedicel with anterior and posterior margin black ( Fig. 6View FIGURE 6 A). Antennae yellow brown with some segments black ( Fig. 6View FIGURE 6 A). Dorsal disc of pronotum darkened yellow in the middle, darker in the anterior half than posterior half of disc; anterior of transverse sulcus with two elongated black spot diverging anteriorly; disc with anterior and posterior margin black in the middle ( Fig. 6View FIGURE 6 A). Tegmen with one large spot at stridulatory field; with some small rounded infumated brown spots throughout, randomly and widely distributed; with cells near posterior margin infumated dark.

Measurements. See Table 1.

Etymology. This species is named after Pak Thong Chai District in which Sakaerat Environmental Research Station spans.

ZRC

Zoological Reference Collection, National University of Singapore