Deferunda qiana, Chen, Xiang-Sheng & He, Ting-Ting, 2010

Chen, Xiang-Sheng & He, Ting-Ting, 2010, Two new species of genus Deferunda Distant (Hemiptera: Fulgoromorpha: Achilidae) from southwest China, Zootaxa 2335, pp. 59-68 : 64-65

Deferunda qiana sp. nov.

( Figs 13–22 )

Description. Body length (from apex of vertex to tip of forewings): male 5.10–5.35 mm (N=7), female 5.50– 5.70 mm (N=10); forewing length: male 3.30–3.45 mm (N=7), female 3.60–3.75 mm (N=7).

Coloration. General color yellowish white to brown. Vertex ( Fig. 13 ) yellowish white with two longitudinal stripes along middle line from apical 2/3 to apex, fuscous, lateral carinae brown. Frons ( Fig. 14 ) yellowish white, lateral margins with three fuscous spots. Clypeus with apical half brown to fuscous. Rostrum yellowish white except apex fuscous. Genae yellowish white, with three transverse fuscous stripes before eyes, one dorsad, area beneath antenna with a fuscous marking. Eyes reddish brown, ocelli yellowish brown, tinged with reddish orange margin. Antennae yellowish brown, with apex brown dorsally. Pronotum ( Fig. 13 ) yellowish brown, lateral areas with five spots, brown. Mesonotum ( Fig. 13 ) yellowish brown, with irregular brown markings. Forewing ( Fig. 15 ) yellowish brown, distributing irregular brown to fuscous markings, along veins, with narrow brown stripes, many white spots scattered, most of them near veins, callus dark brown, infused with reddish orange markings. Hindwing pale brown, veins brown, with a brown marking at anal region. Thorax with ventral areas anterior to middle legs fuscous, region posterior to middle legs yellowish brown. Legs yellowish white to yellowish brown, apex of tibiae with brown spots. Abdomen fuscous, except lateral margin and posterior margin of each segment, yellowish white to yellowish brown. Genital segment yellowish brown to brown.

Head and thorax. Vertex wider between basal angles than long in middle line (1.18:1), disk strongly depressed, anterior margin acute, posterior margin sinuate, angularly concave medially, median carina with basal half distinct, lateral carinae strongly keeled. Frons longer in middle line than widest part about 1.36:1, widest at apical 1/4, basal margin slightly rounded, apical margin concave medially, disk depressed, median carina distinct, lateral margins foliate. Pronotum shorter than vertex (0.64:1). Mesonotum longer in middle line than vertex and pronotum combined (2.11:1). Forewing longer than widest part about 2.71:1.

Male genitalia. Anal segment in dorsal view ( Fig. 16 ) rounded with apical margin emarginate medially, anal style relatively long, extending out apical margin of anal segment. Pygofer in profile ( Fig. 17 ) distinctly shorter dorsally than ventrally, anterior margin broadly concave, posterior margin roundly convex caudad at middle, pygofer in ventral view ( Fig. 18 ), medioventral processes stout, relatively long, subtriangular, apex slightly rounded, two processes separate basally, median cleft broad and deep. Aedeagus ( Figs 21, 22 ) with phallobase bilaterally symmetrical, tubular, dividing into four lobes at apex, in ventral view ( Fig. 21 ), ventral lobe slightly cleft at apex medially, each with four or five spines at ventral side subapically, two large forked processes arising from near middle of lateral margin, inner branch having three teeth at apex, outer branch with apex acute, curving ventrad apically, lateral lobes elongate, dorsal lobe reduced. Phallic appendages ( Fig. 21 ) reaching to middle of phallobase, slightly widening apically, each apex with a stout spine-like process, curving laterally. Genital styles ( Figs 19, 20 ) narrow at base, and widening apically, each nearly triangular, apical margin slightly emarginated, outer margin with a stout, finger-like tooth subapically.

Type material. Holotype: 3, Yantang (26°08´N, 106°39´E), Huishui, Guizhou Province, China, shrubbery or grasses, 31 May 2008, X.-S. Chen. Paratypes: 33, 5ƤƤ, same data as holotype; 13, 1Ƥ, Ceheng (25°00´N, 105°48´E), Guizhou province, 8 July 1977, Z.-Z. Li; 13, Luodian (25°25´N, 106°44´E), Guizhou Province, 16 Sep. 1994, X.-S. Chen; 3ƤƤ, Ceheng, Guizhou Province, 1 July 2006, Z.-G. Zhang; 1Ƥ, Bazong, Luodian, Guizhou Province, 1 June 2008, X.-S. Chen; 13, Lijiang (26°52´N, 100°14´E), Yunnan Province, 11 Aug. 2000, X.-S. Chen. ( IEGU)

Etymology. The specific name refers to the type locality, Guizhou Province, China, and the word “qian” is the transliteration of the Chinese shortened form for Guizhou Province.

Host plants. Unknown.

Distribution. Southwestern China (Guizhou and Yunnan) ( Fig. 23 ).

Remarks. This species is closely related to D. albomaculata ( Muir, 1922) ( India: Assam), but can be distinguished by the vertex with median carina bordered with dark brown stripes at apex (the longitudinal dark brown stripes from apex to base in albomaculata ); frons and basal half of clypeus yellowish white (frons light brown, clypeus dark brown in albomaculata ); gena with a dark brown spot near beneath antenna (absent in albomaculata ); hind tibiae with a brown marking apically (two in albomaculata ); genital style in lateral view with two processes on outer margin apically and subapically (only one in albomaculata ).

This species is also similar to D. acuminata ( China: Hainan), but differs from the latter in: frons yellowish white, without inverse V-shape marking (in the latter, frons yellowish brown, basal half with an inverse Vshape marking); ventral lobe of phallus with two large forked processes laterally (absent in the latter).

Figures

FIGURE 23. Geographic distribution of Deferunda species: D. acuminata (); D. albomaculata (); D. diana (); D. incompta (); D. lineola (); D. majella (); D. philippina (); D. qiana (); D. rubrostigmata (); D. stigmatica (); D. striata (); D. trimaculata (); D. truncata ().

FIGURES 13 – 22. Deferunda qiana (13) Head and thorax, dorsal view; (14) Frons and clypeus; (15) Forewing; (16) Anal segment, dorsal view; (17) Pygofer, lateral view; (18) Pygofer, ventral view; (19) Genital styles and connective, ventral view; (20) Genital style, lateral view; (21) Aedeagus, ventral view; (22) Aedeagus, lateral view. Scale bars = 0.5 mm (Figs 13, 14), 1.0 mm (Fig. 15), 0.2 mm (Figs 16 – 22)