Deferunda dentata Lv & Chen & Long 2023, sp. nov.
Creators: name: Lv, Shasha
name: Chen, Xiangsheng
name: Long, Jiankun
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Achilidae
Deferunda
Deferunda dentata

description: Deferunda dentata sp. nov.
Figs 1–13
Measurements. Length (including forewing): male 3.0–4.3 mm (N = 4), female 3.7–4.5 mm (N = 9).
Diagnosis. The salient features of the new species include: frons (Fig. 4) centrally with an inverted chevron shaped dark mark; forewing (Fig. 5) with CuA 1 obviously convex distad of clavus, reaching MP; medioventral process of pygofer (Fig. 11) constricted abruptly at end, apical margin rounded and convex in ventral view; aedeagus (Figs 12, 13) asymmetrical bilaterally, ventral lobe cleft medially, each side of midline with two dentate processes at proximal part; gonostyli (Fig. 9) with three processes along the lateral margin.
Coloration. General color yellowish white to fuscous (Figs 1–2). Vertex (Figs 1, 3) yellowish brown with 2 long fuscous stripes along midline. Frons (Fig. 4) yellowish white, with an inverted chevron shaped marking, lateral carinae with 3 brownish black transverse bands. Clypeus (Fig. 4) yellowish brown. Genae (Fig. 2) 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 brown, ocelli reddish-brown. Antennae yellowish brown to brown. Pronotum (Figs 1, 3) yellowish brown, longitudinal carinae yellowish white, lateral areas with 4 fuscous spots, middle area yellowish-white to yellowish-brown. Mesonotum (Figs 1, 3) yellowish brown, with multiple large or small brown to fuscous markings. Tegula yellowish fuscous. Forewings (Fig. 5) pale brown to brown, many white spots scattered, most of them near veins, with narrow brown markings along veins, callus blackish brown, tinged with reddish orange margin. Hindwings (Fig. 6) pale brown, veins brown. Abdomen fuscous, lateral margins brown.
Head and thorax. Head (Figs 1, 3) narrow. Vertex medially longer than wide at base (1: 0.71), disk depressed, apex slightly acute, anterior margin slightly truncate, posterior margin sinuate, median carina distinct, lateral carinae strongly ridged. Frons (Fig. 4) near rhomboid, longer in midline than wide at widest portion (about 1.13: 1), median carina with basal half obsolete, lateral margins strongly foliate. Rostrum with apical and subapical segment equally long. Pronotum (Figs 1, 3) short, in midline shorter than vertex (0.61: 1). Mesonotum (Figs 1, 3) longer in midline than vertex and pronotum combined (1.60: 1). Forewings (Fig. 5) slender, longer than maximum width (2.51: 1), CuA 1 obviously convex distad of clavus, reaching MP. Hindwings (Fig. 6) longer than widest part (1.7: 1). Hind tibiae with one lateral spine.
Male genitalia. Pygofer (Figs 10, 11) in lateral view, gradually widened from the back to the abdomen, anterior margin strongly concave in the middle, posterior margin with a short angular process near the middle; in ventral view, medioventral process stout, constricted abruptly at end, apical margin rounded and convex. Anal tube (Fig. 7) in dorsal view length nearly equal to width, apical margin emarginate medially, anal style slightly extending out apical margin of anal tube.Aedeagus (Figs 12, 13) longer than phallobase (2.50: 1), asymmetrical bilaterally, tubular, membranous, divided into 4 lobes at apex; in ventral view, lateral margins with two and one angular processes, middle part with a thick spiny process, directed basad, ventral lobe cleft medially, each side of midline with two dentate processes at proximal part; in dorsal view, dorsal lobe rounded and convex at apical part, left side with 5 spines at basal half, right side with 3 spines. Gonostyli (Figs 8, 9) bow-shaped, apex curved inward, apical margin emarginate; in dorsal view, lateral margin with inverted fingerlike, large hornlike and short rounded processes at 4/5, 2/3 and 2/5 of the proximal part, respectively.
Type material. Holotype: ♁, CHINA: Laoshan, Qingdao, Shandong Province, 16 August 2011, Jian-Kun Long; Paratypes: 3♁♁, 9♀♀, Laoshan, Qingdao, Shandong Province, 16–17 August 2011, Jian-Kun Long.
Etymology. The specific name is derived from the Latin adjective “ dentatus ”, referring to the number of dentate processes on each side of midline of phallobase.
Remarks. This species is similar to Deferunda rubrostigmata (Matsumura, 1914), but differs from the latter in: (1) vertex yellowish brown (vertex milk-white in D. rubrostigmata); (2) medioventral process of pygofer constricted abruptly at end, apical margin rounded and convex (medioventral process of pygofer tapering apically, apex angular in D. rubrostigmata); (3) gonostyli with three processes along the lateral margin (gonostyli with single process medially in D. rubrostigmata); (4) ventral lobe of aedeagus each side of midline with two dentate processes at proximal part (ventral lobe of aedeagus each side of midline with one dentate process at proximal part in D. rubrostigmata).
Distribution. China (Shandong) (Fig. 40).
description: Published as part of 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, pp. 483-493 in Zootaxa 5256 (5) on pages 486-488, DOI: 10.11646/zootaxa.5256.5.4, http://zenodo.org/record/7758970