Deferunda interanea, Lv & Chen & Long, 2023

Lv, Shasha, Chen, Xiangsheng & Long, Jiankun, 2023, Two new species of the planthopper genus Deferunda Distant from China (Hemiptera: Fulgoromorpha: Achilidae), with the first description of the male of Deferunda acuminata Chou & Wang, Zootaxa 5256 (5), pp. 483-493 : 488-490

Deferunda interanea sp. nov.

Figs 14–26

Measurements. Length (including forewing): male 3.7–4.2 mm (N = 19), female 3.8–4.7 mm (N = 8).

Diagnosis. The salient features of the new species include: frons ( Fig. 17 ) without dark mark; forewing ( Fig. 18 ) with CuA 1 obviously convex distad of clavus, not reaching MP; pygofer ( Fig. 23 ) in lateral view with a short angular process near ventral margin, medioventral process of pygofer with an angular short process proximal to apical inner margin; aedeagus ( Figs 25, 26 ) asymmetrical bilaterally, lateral margins of ventral lobe serrated in ventral view, in dorsal view, right dorsal lobe with a row of spines at base, lateral margin of left lobe serrated at the basal third.

Coloration. General color yellowish white to fuscous ( Figs 14–15 ). Vertex ( Figs 14, 16 ) yellowish white with 2 long fuscous stripes along midline from apical 2/3 to apex, lateral carinae yellowish-brown. Frons and clypeus ( Fig. 17 ) yellowish white, apex of postclypeus yellowish brown. Genae ( Fig. 15 ) yellowish white, with 3 fuscous transverse stripes before eyes (2 above and 1 below ocelli), 1 short transverse stripe dorsad, area beneath antenna with a fulvous marking. Eyes fulvous, ocelli reddish-brown. Antennae yellowish brown to brown. Pronotum ( Figs 14, 16 ) yellowish white, lateral areas with 4 fulvous spots, dark brown behind near eyes. Mesonotum ( Figs 14, 16 ) yellowish brown, with irregular brown to fuscous markings, base of middle area yellow. Tegula yellowish fuscous. Forewings ( Fig. 18 ) pale brown to brown, many brown to fuscous spots scattered, veins with many white vesicular markings, callus blackish brown, tinged with light red marking. Hindwings ( Fig. 19 ) pale brown, veins brown. Abdomen fuscous, lateral margins brown.

Head and thorax. Head ( Figs 14, 16 ) narrow. Vertex medially longer than wide at base (1.12: 1), disk depressed, apex slightly acute, anterior margin rounded and convex, posterior margin sinuate, middle part concave angularly, median carina with basal half distinct, lateral carinae strongly ridged. Frons ( Fig. 17 ) near rhomboid, longer in midline than wide at widest portion (about 1.23: 1), median carina distinct, dorsal margin truncate, lateral margins strongly foliate. Rostrum with apical and subapical segment equally long. Pronotum ( Figs 14, 16 ) short, in midline shorter than vertex (0.60: 1). Mesonotum ( Figs 14, 16 ) longer in midline than vertex and pronotum combined (1.91: 1). Forewings ( Fig. 18 ) slender, longer than maximal width (2.90: 1), CuA 1 obviously convex distad of clavus, not reaching MP. Hindwings ( Fig. 19 ) longer than widest part (1.67: 1). Hind tibiae with a lateral spine.

Male genitalia. Pygofer ( Figs 23, 24 ) in lateral view, gradually widened from the back to the abdomen, anterior margin strongly concave medially, posterior margin with a short angular process near the middle, near ventral margin with a short angular process, medioventral process with an angular short process proximal to apical inner margin; in ventral view, basal part of medioventral process wide, constricted slightly in the middle, apical margin rounded and convex. Anal tube ( Fig. 20 ) in dorsal view longer than wide (0.71: 1), apical margin emarginate medially, anal style stout, obviously extending out apical margin of anal tube. Aedeagus ( Figs 25, 26 ) longer than phallobase (2.32: 1), asymmetrical bilaterally, tubular, membranous, divided into 4 lobes at apex; in ventral view, ventral lobe shorter than dorsal lobe, ventral lobe cleft at apex medially, from the base of the median cleft extends a slender long spike, toward the base, apex of left and right ventral lobes with a curved spur near the lateral margin, lateral margins of ventral lobe serrated, left of phallobase with a broad angular pointed process; in dorsal view, right and left dorsal lobes of phallobase with a broad cleft, right dorsal lobe with a row of spines at base, lateral margin with a large angular process medially; lateral margin of left lobe serrated at the basal third. Gonostyli ( Figs 21, 22 ) bow-shaped, apex rounded and convex, apical margin emarginate; in ventral view, outer margin of distal half with 1 large angular process; in dorsal view, distal half of dorsal margin bearing 2 pointed dentate processes oriented inward, middle area with one twisted broad enlarged process, inner and basal margins with an obtuse angular process, respectively, outer margin with a fingerlike process.

Type material. Holotype: ♁, CHINA: Jianfengling National Natural Reserve , Hainan Province, 14 January 2011, Jian-Kun Long ; Paratypes: 15♁♁, 4♀♀, Jianfengling National Natural Reserve, Hainan Province, 13–16 January 2011, Jian-Kun Long and Wei-Bing Zheng ; 3♁♁ , 4♀♀, Jianfengling National Natural Reserve , Hainan Province, 8 April 2015, Jian-Kun Long, Ji-Chun Xing and Yu-Bo Zhang .

Etymology. The specific name is derived from the Latin adjective “ interaneus ”, referring to the medioventral process of pygofer with an angular short process proximal to the apical inner margin.

Remarks. This species is similar to Deferunda lua Long, Yang & Chen, 2013 , but differs from the latter in: (1) apex of postclypeus yellowish brown (postclypeus yellowish white in D. lua ); (2) medioventral process of pygofer with an angular short process proximal to apical inner margin (medioventral process of pygofer without an angular short process proximal to apical inner margin in D. lua ); (3) middle part of medioventral process constricted in ventral view (apex of medioventral process constricted abruptly in ventral view in D. lua ); (4) phallobase with 1 angular process on the left side (phallobase without 1 angular process on the left side in D. lua ).

Distribution. China (Hainan) ( Fig. 40 ).

Figures

FIGURE 40. Geographic distributions of Deferunda species: D. majella (Kirkaldy, 1906) (▲); D. stigmatica Distant, 1912 (▲); D. lineola (Matsumura, 1914) (●); D. philippina (Melichar, 1914) (●); D. rubrostigmata (Matsumura, 1914) (●); D. albomaculata (Muir, 1922) (●); D. incompta Dlabola, 1961 (●); D. acuminata Chou & Wang, 1985 (▲); D. truncata Chen, Yang & Wilson, 1989 (▲); D. striata Wang & Liu, 2008 (●); D. trimaculata Wang & Peng, 2008 (●); D. diana Chen & He, 2010 (▲); D. qiana Chen & He, 2010 (▲); D. ellipsoidea Long, Yang & Chen, 2013 (●); D. lua Long, Yang & Chen, 2013 (▲); D. dentata sp. nov. (▲); D. interana sp. nov. (●).

FIGURES 14–26. Deferunda interanea sp. nov., Male 14. Habitus, dorsal view; 15. Habitus, lateral view; 16. Head and thorax, dorsal view; 17. Frons, ventral view; 18. Forewing; 19. Hindwing; 20. Anal tube, dorsal view; 21. Gonostyli, ventral view; 22. Gonostyli, dorsal view; 23. Pygofer, lateral view; 24. Pygofer, ventral view; 25. Aedeagus, ventral view; 26. Aedeagus, dorsal view. Scale bars: 0.5 mm (20–22 0.2 mm).