A remarkable new genus and species of Erythroneurini (Hemiptera: Cicadellidae: Typhlocybinae) from China.
Materials and Methods
The type specimens were collected by sweep net in Aug 2008 in the Baiyun Mountain scenic area in Henan Province. Morphological terminology used in this work follows Dietrich (2005) and Song & Li (2013). Habitus photos were taken using a KEYENCE VHX-2000 digital microscope. The body measurements are from the apex of vertex to the tip of forewing. An Olympus SZX7 dissecting microscope was used for viewing and an Olympus CX41 stereoscopic microscope for drawing. The type-series of the new species were deposited in the Institute of Entomology, Guizhou University, Guiyang, China (GUGC).
Dentaneura gen. nov.
Type species: Dentaneura henanensis sp. nov. DIAGNOSIS
Head narrower than pronotum. Crown fore margin weakly produced medially, with pair of preapical spots. Face with frontoclypeus long and narrow, anteclypeus relatively broad. Pronotum with medial markings. Scutellum with basal triangles obvious. Forewing long and narrow, clavus with continuous vitta parallel to suture.
Male: Second sternal apodemes (2S) bladelike, extending 4th sternite.
Pygofer side broad, with single large dorsal macroseta, hind margin rounded, basolateral area without setae in distinct group, microsetae and microtrichia near caudal margin of lobe well developed. Pygofer dorsal appendage movably articulated, bifurcate near base, extended beyond pygofer apex, slightly curved downward in lateral view. Ventral appendage absent. Subgenital plate (Fig. 8) short, not extended to apex of pygofer lobe, expanded at subbase, with 3 macrosetae along upper margin subbasally and 4 macrosetae forming row on lateral surface, upper marginal microsetae absent, with 2 strong teethlike setae apically, some microsetae scattered on distal and ventral area. Style (Fig. 9) long and slender, footlike apically. Preapical lobe small but distinct, hooklike at apex. Connective (Fig. 12) Y-shaped, central lobe present. Aedeagus (Fig. 11) simple, with pair of short processes apically. Aedeagal shaft equal to or slightly shorter than preatrium. Preatrium expanded at base. Dorsal apodeme small in lateral view. Gonopore terminal, ventrad.
Species in this tribe feed on trees, shrubs, and grasses. Some species harm economic crops including apple, grape, cherry, hawthorn, pear, peach, mulberry, maple, and Lonicera. The body is small, the forewing and head often have bright coloration and distinct patterns.
The new genus resembles Arboridia (Zachvatkin 1946) in the following morphological characteristics: crown fore margin weakly produced medially, with paired preapical spots, scutellum with dark basal triangles. It is also somewhat similar to Tautoneura Anufriev, 1969 in the Y-shaped connective, with median anterior lobe, but can be distinguished from the formers by the pygofer with 1 dorsal macroseta, without macrosetae in group at basal lower angle; the subgenital plate very short, with 3 macrosetae at upper margin subbasally and 2 robust teethlike setae at apex, some rigid microsetae along upper margin disappeared; connective median anterior lobe present.
The generic epithet is derived from the noun "denta" and the suffix "-neura" in view of the subgenital plate with 2 strong teethlike setae at apex. The gender is feminine.
China: Henan Province, Mt. Baiyun.
Body length: [male], 3.1-3.2 mm.
Vertex (Figs. 1 and 6) brownish yellow, with pair of milky irregular preapical spots and with longitudinal milky stripes along inner sides of eyes. Eyes (Figs. 1, 2, 3) brown black. Pronotum (Figs. 1, 6) whitish yellow, with median and posterior margin dark. Face (Fig. 3) brown yellow, frontoclypeus long and narrow, with 2 large milky white markings apically; anteclypeus broad, whitish yellow. Forewing (Figs. 1 and 4) pale, with 1 continuous light brown vitta parallel to clavus suture.
Male: Second sternal apodemes (2S) (Fig. 5) bladelike, extended to 4th sternite.
Pygofer side (Fig. 7) broad, with 1 dorsal macroseta, numerous microtrichia scattered at caudal area. Pygofer dorsal appendage movably articulated, bifurcate at base, dorsal branch longer than ventral branch, extended beyond apex of lobe. Subgenital plate (Fig. 8) with 3 marginal macrosetae at base, 4 macrosetae on lateral surface, and 2 robust teethlike setae at apex. Style (Fig. 9) with apex inverted-footlike, preapical lobe small, with apex hooklike. Connective (Fig. 12) Y-shaped, with stem truncate apically, central lobe much short than lateral arms. Aedeagus (Figs. 10 and 11) with paired short apical processes, preatrium little longer than aedeagal shaft, dorsal apodeme small in lateral view, gonopore apical on ventral surface. Female: Unknown.
HOLOTYPE: 1 male; CHINA: Henan Prov., Mt. Baiyun (33.6[degrees] N, 111.83[degrees] E), 1,300-1,400 m, 17-VIII-2008, coll. Yuehua Song and Can Li. PARATYPE: 1 male, same data as Holotype.
China (Henan Province).
The new species can be distinguished from other species with its subgenital plate extremely short, with 3 macrosetae along upper margin sub-basally and 2 strong toothlike setae apically; pygofer lobe with a single dorsal macroseta.
The specific name refers to the type-locality.
The study was partly supported by the Key Project in the National Key Technology R&D Program of China during the Twelfth Five-Year Plan Period (2011BAC09B01-08), the National Natural Science Foundation of China (31301866), the Special Foundation for the Excellent Youth Science and Technology Scholars of Guizhou Province (Qian Ke He Ren Zi, No.  17), the Natural Science Research Project of Education Department of Guizhou Province (Qian Jiao He KY Zi, No.  357), and the Chinese Government Scholarship Sponsoring Study Abroad (201308525113).
Anufriev GA. 1969. New and little known leafhoppers of the subfamily Typhlocybinae from the Soviet Maritime Territory (Homoptera, Auchenorrhyncha). Acta Faunistica Entomologica Musei Nationalis Pragae 13: 186-188.
Dietrich CH. 2005. Keys to the families of Cicadomorpha and subfamilies and tribes of Cicadellidae (Hemiptera: Auchenorrhyncha). Florida Entomologist 88: 502-517.
Dmitriev DA. 2016. Auchenorrhyncha database search. Dmitriev.speciesfile.org. Available from: http://dmitriev.speciesfile.org (last accessed 23 May 2016).
Song YH, Li ZZ. 2013. Some new species and new record of the genus Arboridia Zachvatkin (Hemiptera: Cicadellidae: Typhlocybinae) from six provinces of China. Zootaxa 3613: 229-244.
Song YH, Li ZZ. 2014. Erythroneurini and Zyginellini from China (Hemiptera: Cicadellidae: Typhlocybinae). Guizhou Science and Technology Publishing House, Guiyang, China.
Zachvatkin AA. 1946. Studies on the Homoptera of Turkey. I-VII. Transactions of the Royal Entomological Society of London 97: 149-176.
YueHua Song (1,2), *, ZiZhong Li (1) *, and RenHuai Dai (1)
(1) Guizhou University, Institute of Entomology, Guiyang, Guizhou, 550025, China; E-mail: firstname.lastname@example.org (YH. S.), email@example.com (ZZ. L.), firstname.lastname@example.org (RH. D.)
(2) Guizhou Normal University, School of Karst Science, Guiyang, Guizhou, 550001, China
* Corresponding authors; E-mail: email@example.com (YH. S.), firstname.lastname@example.org (ZZ. L.)
Caption: Figs. 1-12. Dentaneura henanensis Song, Li & Dai sp. nov. (male). 1. Habitus, dorsal view; 2. habitus, lateral view; 3. face; 4. wings (forewing and hind wing); 5. abdominal apodemes; 6. head and thorax, dorsal view; 7. pygofer, lateral view; 8. subgenital plate; 9. style; 10. aedeagus, lateral view; 11. aedeagus, ventral view; 12. connective.
Updated Key to Genera of Erythroneurini from China (Modified from Song & Li 2014) 1.-- Hind wing submarginal vein reduced, not 2 fused with Cu1 vein 1'.-- Hind wing submarginal vein fused with 3 Cu1 vein 2.-- Head, thorax, and forewing with Diomma numerous spots and markings; pygofer Motschulsky with dorsal appendage only 2'.-- Head, thorax, and forewing without Watara spots and markings; pygofer with dorsal Dworakowska and ventral appendage 3.-- Anal tube with hooks or processes 4 3'.-- Anal tube without hooks or processes 7' 4.-- Pygofer lobe with several enlarged 5 setae at basolateral angle 4'.-- Pygofer lobe without several enlarged 7 setae at basolateral angle 5.-- Pygofer microtrichia well developed Raabeina Dworakowska 5'.-- Pygofer microtrichia absent or 6 inconspicuous 6.-- Pygofer ventral appendage absent Gladkara Dworakowska 6'.-- Pygofer ventral appendage present Thailus Mahmood 7.-- Pronotum with single diamond-shaped 8 impression medially 7'.-- Pronotum without diamond-shaped 11 impression medially 8.-- Pygofer lobe with 1-2 dorsal macrosetae Sanatana Dworakowska 8'.-- Pygofer lobe without dorsal macrosetae 9 9.-- Aedeagus fused to connective Andrabia Ahmed 9'.-- Aedeagus articulated to connective 10 10.-- Pygofer lobe with appendage Thaia Ghauri 10'.-- Pygofer lobe without appendage Niedoida Dworakowska 11.-- Pygofer lobe with sparse long fine 12 setae 11'.-- Pygofer lobe without sparse long fine Kaukania setae Dworakowska 12.-- Forewing with irregular red dots Tautoneura Anufriev 12'.-- Forewing without irregular red dots 13 13.-- Pygofer without dorsal appendage Thapaia Dmitriev & Dietrich 13'.-- Pygofer with dorsal appendage 14 14.-- Pygofer dorsal appendage movably 15 articulated at base 14'.-- Pygofer dorsal appendage not movably Gambialoa articulated at base Dworakowska 15.-- Pygofer with oblique dorsolateral Kapsa Dworakowska internal ridge 15'.-- Pygofer without oblique dorsolateral 16 internal ridge 16.-- Pygofer lobe microtrichia well Chagria developed Dworakowska 16'.-- Pygofer lobe microtrichia disappeared Frutioidia or unobvious Zachvatkin 17.-- Forewing 4th apical cell extended to 18 distal margin 17.-- Forewing 4th apical cell not extended 22 to distal margin 18.-- Style apex bifurcate Irenaneura Cao, Huang & Zhang 18'.-- Style apex unbranched 19 19.-- Pygofer inner side with 2 pairs of well Variolosa Cao & pigmented separate lobes Zhang 19'.-- Pygofer inner side without lobes -20 20.-- Preatrium of aedeagus with single Singapora Mahmood large atrial process 20'.-- Preatrium of aedeagus without atrial 21 process 21.-- Pygofer lobe with a strong appendage at Fractata Song caudal margin medially & Li 21'.-- Pygofer lobe without any appendage at Dentaneura caudal margin gen. nov. 22.-- Pygofer basolateral with macrosetae in 23 distinct group 22'.-- Pygofer basolateral without macrosetae 26 in group 23.-- Apex of scutellum without black spot 24 23'.-- Apex of scutellum with single black 25 spot 24.-- Style apex truncate Coloana Dworakowska 24'.-- Style apex slender Ossuaria Dworakowska 25.-- Subgenital plate with lamelliform Plumosa Sohi process on inner lateral surface near apex and several long white fine setae at apex 25'.-- Subgenital plate without lamelliform Davmata process on inner lateral surface near Dworakowska apex, with several short stout setae at apex 26.-- Hind wing with truncate apex 27 26'.-- Hind wing with rounded apex 29 27.-- Hind wing with RA vein Erythroneura Dworakowska 27'.-- Hind wing without RA vein 28 28.-- 2S abdominal apodemes small, narrow, Gredzinskiya not exceeding 3rd sternite Dworakowska 28'.-- 2S abdominal apodemes large, broad, Erythroneura exceeding 3rd sternite Fitch 29.-- Pygofer with dorsal and ventral 30 appendage 29'.-- Pygofer with dorsal or ventral 31 appendage only or without appendage 30.-- Pygofer lobe with 1 or more Salka Dworakowska dorsal macrosetae 30'.-- Pygofer without dorsal macorsetae Alnetoidia Dlabola 31.-- Crown fore margin weakly produced, 32 rounded apically 31'.-- Crown fore margin strongly produced, 36 angulate medially 32.-- Pronotum with diamond-shaped 33 impressions medially 32'.-- Pronotum without diamond-shaped 34 impressions medially 33.-- Pygofer without dorsal appendage Pseudothaia Kuoh 33'.-- Pygofer with dorsal appendage Matsumurina Dworakowska 34.-- Scutellum with single black medial spot Elbelus Mahmood 34'.-- Scutellum without single black medial 35 spot 35.-- Style preapical lobe cheliform Rufitidia Dworakowska 35'.-- Style preapical lobe lamellalike Yakuza Dworakowska 36.-- Style apex long and slender, 37 tapering apically 36'.-- Characters not as above 40 37.-- Pygofer often with 1 or more dorsal Kabakra macrosetae Dworakowska 37'.-- Pygofer often without dorsal macrosetae 38 38.-- 3S apodemes present and distinctive Saccata Cao & Zhang 38'.-- 3S apodemes absent 39 39.-- Connective central lobe absent Kusala Dworakowska 39'.-- Connective central lobe present Mitjaevia Dworakowska 40.-- Pygofer with dorsal appendage 41 40'.-- Pygofer without dorsal appendage 42 41.-- Pygofer with single macroseta arising Laciniata Song from caudal margin medially & Li 41'.-- Pygofer without macroseta arising from Duanjina Kuoh caudal margin 42.-- Connective with central lobe 43 42'.-- Connective without central lobe 46 43.-- Pygofer lobe with numerous, conspicuous Zygina Fieber long fine setae 43'.-- Pygofer lobe without numerous, 44 conspicuous long fine setae 44.-- Pygofer with oblique dorsolateral 45 internal ridge 44'.-- Pygofer without oblique dorsolateral Lectotypella internal ridge Dworakowska 45.-- Vertex without spots Motaga Dworakowska 45'.-- Vertex often with pair of preapical Empoascanara spots or large median apical spot Distant 46.-- Style apex with 3 points 47 46'.-- Style apex truncate and expanded 48 47.-- Forewings with continuous zigzag Ziczacella pattern Anufriev 47'.-- Forewings without continuous zigzag Arboridia pattern Zachvatkin 48.-- Pygofer with macrosetae at basolateral 49 angle 48'.-- Pygofer without macrosetae at Seriana basolateral angle Dworakowska 49.-- Aedeagus with pair of long atrium Qadria Mahmood processes; hindwing without RA vein 49'.-- Aedeagus without atrium processes; Anufrievia hindwing with RA vein Dworakowska Dentaneura henanensis Song, Li & Dai sp. nov. (Figs. 1-12)
Please note: Some tables or figures were omitted from this article.
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|Author:||Song, YueHua; Li, ZiZhong; Dai, RenHuai|
|Date:||Sep 1, 2016|
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