Deferunda diana, 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 : 62-63

Deferunda diana sp. nov.

( Figs 1–12 )

Description. Body length (from apex of vertex to tip of forewings): male 4.40–4.60 mm (N=10), female 4.75–4.95 mm (N=12); forewing length: male 3.55–3.75 mm (N=10), female 3.80–4.00 mm (N=12).

Coloration. General color yellowish white to fuscous. Vertex ( Fig. 1 ) yellowish white with two longitudinal stripes along middle line from base to apex, fuscous, lateral carinae brown. Frons ( Fig. 2 ) with apex brown, basal half with an inverse V-shape marking, blackish brown. Clypeus brown. Rostrum brown except apex fuscous. Genae yellowish white, with three fuscous transverse stripes before eyes, one dorsad, areas beneath antenna with a brown marking. Eyes blackish brown, ocelli reddish brown. Antennae yellowish brown to brown. Pronotum ( Fig. 1 ) yellowish brown, lateral areas with five fuscous spots, areas behind eyes blackish, areas between lateral carinae fuscous. Mesonotum ( Fig. 1 ) yellowish brown, with irregular brown to fuscous markings. Forewing ( Fig. 3 ) pale brown to brown, distributing irregular brown to fuscous markings, along veins, with narrow black stripes, many white spots scattered, most of them near veins, callus blackish brown, tinged with reddish orange margin. Hindwing ( Fig. 4 ) pale brown, veins brown, with a brown marking at anal region. Thorax with ventral areas brown to fuscous. Legs yellowish brown to brown, with fuscous spots. Abdomen blackish brown, except lateral margin and posterior margin of each segment, brown. Genital segment yellowish brown to brown.

Head and thorax. Vertex narrower between basal angles than long in middle line (0.88:1), disk strongly depressed, apex slightly acute, anterior margin slightly truncate, posterior margin sinuate, angularly concave medially, median carina with basal half distinct, lateral carinae strongly keeled. Frons longer in middle line than widest part (1.16:1), widest near apical third, basal margin slightly roundly convex, apical margin concave medially, median disk distinctly depressed, median carina with basal half obsolete, lateral margins strongly foliate. Pronotum shorter than vertex (0.52:1). Mesonotum longer in middle line than vertex and pronotum combined (1.88:1). Forewing longer than widest part (2.51:1).

Male genitalia. Anal segment in dorsal view ( Fig. 5 ) almost rounded, apical margin nearly truncate, anal style short, not extending out apical margin of anal segment. Pygofer in profile ( Fig. 6 ) distinctly shorter dorsally than ventrally, anterior margin strongly concave, posterior margin declined, produced caudad in a short, rounded process at middle, pygofer in ventral view ( Fig. 7 ), medioventral processes stout, relatively short, triangular, tapering apically, two processes connected basally, median cleft narrow and shallow. Aedeagus ( Figs 11, 12 ) with phallobase not quite bilaterally symmetrical, tubular, dividing into four lobes at apex, in ventral view ( Fig. 11 ), ventral lobe cleft at apex medially, with a strong spine-like process at middle line, directed basad, each side produced into six spines laterally, lateral lobes elongate, right side with a large tooth medially; in dorsal view ( Fig. 12 ) dorsal lobe reduced, two processes arising from base, directed basad, which with outer margin having many small teeth. Phallic appendages ( Figs 11, 12 ) just reaching to apex of phallobase, with apical portion slightly incurved, tapering apically. Genital styles ( Figs 8-10 ) narrow at base, and widening apically, each nearly triangular, apical margin nearly truncate, outer margin with two teeth apically and subapically.

Type material. Holotype: 3, Tenchong (25°01´N, 98°30´E), Yunnan Province, China, 13 Aug. 2006, Q.- Z. Song and Z.-G. Zhang. Paratypes: 43, 3ƤƤ, same data as holotype; 13, 4ƤƤ, Xiaguan (25°42´N, 100°10´E), Dali, Yunnan Province, China, 4 Aug. 2006, Q.-Z. Song; 33, 5ƤƤ, Pianma (26°01´N, 98°37´E), Lushui, Yunnan Province, 1800m, 16 Aug. 2000, X.-S. Chen; 13, Xishan Park (25°04´N, 102°42´E), Kunming, Yunnan Province, 1950m, 31 Aug. 2006, P. Zhang. ( IEGU)

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

Host plant. Unknown.

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

Remarks. This species is similar to D. rubrostigma but differs from the latter in: each lateral margin of frons with only one transverse bar, apex of frons brown (in the latter, each lateral margin of frons with three transverse bars, apex of frons milk-white); two medioventral processes of pygofer connected basally, median cleft shallow (in the latter, two medioventral processes of pygofer distinctly separate basally, median cleft very deep); dorsal lobe of phallus with two processes basally, which bear many teeth along outer margin (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 1 – 12. Deferunda diana (1) Head and thorax, dorsal view; (2) Frons and clypeus; (32) Forewing; (4) Hindwing; (5) Anal segment, dorsal view; (6) Pygofer, lateral view; (7) Pygofer, ventral view; (8) Genital styles and connective, ventral view; (9) Genital style, lateral view; (10) Genital style, ventral view; (11) Aedeagus, ventral view; (12) Aedeagus, dorsal view. Scale bars = 0.5 mm (Figs 1, 2), 1.0 mm (Figs 3 – 4), 0.2 mm (Figs 5 – 12)