Dilacreon (Eluzalmon) parapentagonus Chen &amp; Zhi 2023, sp. nov.
Creators: name: Chen, Xiang-Sheng
name: Zhi, Yan
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cixiidae
Dilacreon
Dilacreon parapentagonus

description: <i>Dilacreon</i> (<i>Eluzalmon</i>) <i>parapentagonus</i> sp. nov. (Figs 24‒26) <b>Description</b>. Body length: male 4.6‒5.0 mm (<i>n</i> = 4), female 4.9‒5.5 mm (<i>n</i> = 3). <i>Coloration</i>. General color yellowish brown (Fig. 24A–E). Eyes dark brown, ocelli light yellow, semitransparent. Vertex generally yellowish brown with carinae light brown. Face generally brown; rostrum yellowish brown. Pronotum and mesonotum brown. Forewing brown, semi-translucent; stigma yellowish brown. Hind tibiae and abdominal sternites yellowish brown. <i>Head and thorax</i>. Vertex (Figs 24C, 25A) broad, 2.2 times wider than long; anterior margin truncated, posterior margin archedly recessed. Frons (Figs 24D, 25B) widest slightly below the level of antennae, 1.2 times as long as wide; frontoclypeal suture nearly concave into an arch; middle carina complete; lateral carinae distinct and slightly elevated. Pronotum (Figs 24C, 25A) 2.5 times longer than vertex; median carina indistinct, posterior margin nearly at right angle. Mesonotum 1.7 times longer than pronotum and vertex combined. Forewing (Fig. 25C) 2.4 times longer than wide, with 10 apical and 6 subapical cells; fork Sc+RP slightly basad of fork CuA 1 +CuA 2, first crossvein r-m at same level as fork MP, RP two branches, MP with five terminals: MP 11, MP 12, MP 2, MP 3, and MP 4, fork MP 1 +MP 2 basad of fork MP 3 +MP 4. Metatibiotarsal formula: 6/7/8, second segment of hind tarsus with three platellae. <i>Male genitalia</i>. Pygofer (Fig. 25D, E) symmetrical, dorsal margin concave and U-shaped, slightly widened towards apex in ventral view; in lateral view, lateral lobes arched extended caudally, medioventral process arched in ventral view. Anal segment (Fig. 25D, F) tubular, dorsal and ventral margins almost straight, apical lobes horny in lateral view; 1.7 times longer than wide in dorsal view; anal style strap-shaped, slightly beyond anal segment. Gonostyli (Fig. 25D, E, G) symmetrical in ventral view; in inner lateral view, base of ventral margin nearly straight, dorsal margin bending inwards at a nearly right angle in the middle, apical part extended, apical margin round. Aedeagus (Fig. 25H–K) with total of five processes. On right side, apex of periandrium with two curved spinous processes, the upper one medium-sized, cephalically directed, the lower one longer, apex left-ventrocephalically directed; apical half of ventral margin swollen triangularly, basal half of periandrium densely covered with fine denticles; left apex with a longest spinous process, sinuous, which basal half slightly curved downwards and apical half straight, ventrocephalically directed. Endosoma (=flagellum) moderately sclerotised, relatively short, generally dorsally curved. Base of left side with a medium-sized spinous process, slightly curved and left-cephalically directed; dorsal margin near apex with a short spinous process, straight, apex ventrocephalically directed. <i>Female genitalia</i>. Posterior margin of pregenital sternite concave.Tergite IX(Fig. 26A, D) moderately sclerotised, 1.2 times longer than wide in caudal view. Anal tube (Fig. 26A, C) short, nearly rectangular, slightly widened towards apex, 1.1 times wider than long in dorsal view; dorsal and ventral margins slightly convex in lateral view, anal styles strap-shaped. Gonapophysis VIII (Fig. 26E) elongate, and slightly curved upwards. Gonapophysis IX (Fig. 26F) with one middle tooth, at a distance ratio, between middle tooth to apex and length of denticulate portion, of 1.7. Gonoplac (Fig. 26G) rod-like, 3.8 times longer than wide. Posterior vagina (Fig. 26H, I) elongate. The ventral wall of posterior vagina with a longitudinal long and slender sclerite on left side. The base of dorsal wall with a large near-elliptical sclerite and a smaller sclerite on the left, the right side of the middle area with two longitudinal narrow sclerites. <b>Type material.</b> Holotype: &amp;male;, CHINA: Fenshuiling National Nature Reserve (22°46’N, 103°13’E), Jinping County, Yunnan Province, 5 August 2015, leg. Zhi-Min Chang; paratypes: 2&amp;male;&amp;male; 1&amp;female;, Bakaxiaozhai (21°58’N, 101°13’E), Mengla County, Yunnan Province, 20‒30 July 2012, leg. Wei-Bin Zheng and Shi-Yan Xu; 1&amp;male;, Bakaxiaozhai, Mengla County, Yunnan Province, 14 June 2016, leg. Liang-Jing Yang; 2&amp;female;&amp;female;, Bakaxiaozhai, Mengla County, Yunnan Province, 11 March 2017, leg. Zheng-Xue Zhao. <b>Host plant.</b> Unknown. <b>Distribution.</b> China (Yunnan). <b>Remarks.</b> Male genitalia of <i>D.</i> (<i>E.</i>) <i>parapentagonus</i> sp. nov. are similar to those of <i>D.</i> (<i>E.</i>) <i>pentagonus</i> Fennah, 1980, but differ in: (1) left apex of periandrium with one spinous process (left apex of periandrium with two spinous processes in <i>D.</i> (<i>E.</i>) <i>pentagonus</i>); (2) left side of endosoma with a medium-sized spinous process basally (left side of endosoma without process basally in <i>D.</i> (<i>E.</i>) <i>pentagonus</i>); (3) vertex with middle carina, anterior margin transverse (vertex without middle carina, anterior margin angulate in <i>D.</i> (<i>E.</i>) <i>pentagonus</i>); (4) forewing without crossvein CuA 1 -CuA 2 (Cu 1a -Cu 1b) (the latter with crossvein Cu A1 -Cu A2 (Cu 1a -Cu 1b)). <b>Etymology.</b> The specific name refers to the number and location of aedeagal spinous processes of this new species which is similar to <i>D.</i> (<i>E.</i>) <i>pentagonus</i> Fennah, 1980.
description: Published as part of <i>Chen, Xiang-Sheng &amp; Zhi, Yan, 2023, Taxonomic study of the Eucarpiini (Hemiptera: Fulgoromorpha: Cixiidae) from China, pp. 1-100 in Zootaxa 5347 (1)</i> on pages 37-43, DOI: 10.11646/zootaxa.5347.1.1, http://zenodo.org/record/8390836
description: {"references": ["Zhang, P. &amp; Chen, X. - S. (2013 a) First Record of the Genus Dilacreon Fennah, 1980 (Hemiptera: Fulgoromorpha: Cixiidae: Eucarpiini) from China, with Description of One New Species Feeding on Bamboo. Journal of the Kansas Entomological Society, 86 (4), 318 - 324. https: // doi. org / 10.2317 / JKES 121129.1", "Fennah, R. G. (1980) The genus Bajauana and two allied new genera in New Guinea (Fulgoroidea: Cixiidae). Pacific Insects, 22, 237 - 328."]}