Dictyoptera wuyishanensis Kazantsev, 2025

Dictyoptera wuyishanensis Kazantsev sp. nov.

( Figs 1A, 1B View FIGURE 1 , 2A–C View FIGURE 2 )

MATERIAL. China: Holotype, ♂, ‘CHINA-JIANGXI, Wuyishan , Xipaihe village, 1500 m, 27°54’ N, 117°20’ E, V.2004, V. Siniaev leg.’ ( ICM). GoogleMaps

DESCRIPTION. Male. Dark brown; pronotum, except at disk, scutellum apically, and elytra red; head in front of eyes and pronotal disk reddish brown ( Fig. 1A View FIGURE 1 ).

Head transverse, vertex densely micro-granulose. Eyes relatively large, interocular distance ca 1.5 times greater than eye diameter. Labrum narrow, transverse, slightly concave anteriorly. Palps relatively short; ultimate palpomeres elongate, widest near middle, gradually narrowed distally. Antennal sockets separated by moderately wide lamina. Antennae moderately long, reaching over mid-elytra, filiform, except conical, widening distally antennomere 3; antennomere 3 ca 2 times longer than antennomere 2 and ca 1.4 times shorter than antennomere 4, antennomeres 3–11 with short dense sub-erect pubescence ( Fig. 1A View FIGURE 1 ).

Pronotum transverse, ca 1.7 times wider than long, semi-circularly produced anteriorly, with sinuate before posterior angles sides, long acute posterior and inconspicuous anterior angles; median cell rhomboidal, with slightly concave posterior sides. Scutellum elongate, triangular, oblong at apex, with minute emargination distally ( Fig. 1A View FIGURE 1 ).

Elytra long, ca 3.2 times longer than wide at humeri and ca 5.5 times longer than pronotum, very slightly widening distally, non-dehiscent at suture, with four complete longitudinal costae and doubles rows of small regular sub-rectangular cells in the interstices; pubescence only on costae and ribs, short ( Fig. 1A View FIGURE 1 ).

Legs moderately long, slender; hind trochanters ca 1.5 times longer than wide, almost straight anteriorly at base, spinose at hind angle; hind tibiae straight; hind tarsomere length ratio: 2: 1.4: 1: 1: 2 ( Fig. 1 View FIGURE 1 ).

Ultimate abdominal ventrite elongate, in proximal half narrow, parallel-sided, pointed at base, in distal half relatively narrow, oval; ultimate abdominal tergites (tergites 8 and 9) oval, gradually tapering distally ( Fig. 2A View FIGURE 2 ).

Aedeagus elongate, parallel-sided in dorsoventral view, with elongate, straight, narrow, in dorsoventral view, and straight and conspicuously widened proximally, in lateral view, median piece; parameres slightly shorter than median piece, medially incised and narrowed, in lateral view, near apex; phallobase, in dorsoventral view, elongate, slightly widened proximally, ca 4.2 times longer than wide and ca 2.7 times shorter than median piece with parameres ( Figs 2B, 2C View FIGURE 2 ).

Length: 9.4 mm. Width at humeri: 2.4 mm.

Female. Unknown.

DIAGNOSIS. Dictyoptera wuyishanensis sp. nov. is similar habitually to D. aurora , from which it may be distinguished by the larger eyes, whose diameter is only 1.5 times less than the interocular distance, straighter hind tibiae ( Fig. 1A View FIGURE 1 ) and longer, 1.5 times longer wide, almost straight anteriorly at the base, and spinose at hind angle hind trochanters ( Fig. 1B View FIGURE 1 ), as well as by the more narrow, in dorso-ventral view, and straight, in lateral view, median piece of the aedeagus ( Figs 2B, 2C View FIGURE 2 ). In D. aurora the eyes are smaller, their diameter is ca 2 times less than the interocular distance, hind tibiae are more curved ( Fig. 1E View FIGURE 1 ), and hind trochanters are shorter, 1.3 times longer wide, noticeably curved anteriorly at base, and rounded at hind angle ( Fig. 2F View FIGURE 2 ). The median piece of the aedeagus in D. aurora is broader, in dorso-ventral view, and convex, in lateral view ( Figs 2G, 2H View FIGURE 2 ). The new species is easily separable from D. gansuensis Kazantsev, 2004 , from central China, by the coloration, non-dehiscent at suture elytra, structure of the hind trochanter (compare Figs 1A, 1B View FIGURE 1 and Figs 1C, 1D View FIGURE 1 ) and aedeagus ( Figs 2B, 2C View FIGURE 2 and Figs 2E, 2F View FIGURE 2 ).

ETYMOLOGY. The new species is named after the Wuyishan mountains in Jiangxi (eastern China), where the unique type specimen was collected .

DISTRIBUTION. Jiangxi, eastern China.