Evinus tenuis , Lu, Lin, Dietrich, Christopher H. & Zhang, Yalin, 2013

Lu, Lin, Dietrich, Christopher H. & Zhang, Yalin, 2013, Review of the leafhopper genus Evinus Dlabola (Hemiptera: Cicadellidae: Deltocephalinae), Zootaxa 3701 (4), pp. 421-436: 433-436

publication ID

http://dx.doi.org/10.11646/zootaxa.3701.4.2

publication LSID

lsid:zoobank.org:pub:A388C8EE-1AD6-4979-947F-BD70AE289C35

persistent identifier

http://treatment.plazi.org/id/038D878A-FFEA-6655-FF39-95565551FE44

treatment provided by

Plazi

scientific name

Evinus tenuis
status

sp. nov.

Evinus tenuis  sp. nov. (Figs 9 A –O)

Description. Length (including forewing). Male: 2.3–2.4 mm; female: 2.4 mm.

Color as in E. angulatus  but frontoclypeus brownish with several pairs of dark brown markings; lorum and anteclypeus bordered with black; mesonotum with small anteromedial area and pair of posteromedial spots brown without markings posterad of scutellar suture.

Anteclypeus distinctly tapered from base to apex, ca. twice as long as basal width, apex convex.

Male abdomen. 2 T apodeme with submedial lobes convergent, straight, extended beyond posterior margin of tergite, somewhat variable in length among individuals. 1 S apodeme with submedial lobe relatively short and broad, less than 2.0 times longer than wide; lateral extension bifurcate, branches subequal in length, dorsal branch slender and lateral branch broad. 2 S apodeme with submedial lobes curved mesad, ca. 2.0 times as long as basal width.

Male genitalia. Pygofer lobe relatively long and narrow, ventral margin concave, posterior margin rounded. Subgenital plate lateral lobe attenuate, extended well beyond dorsal margin of pygofer lobe. Connective Y-shaped, arms moderately divergent. Aedeagus with shaft evenly curved dorsad in lateral view; evenly tapered distally in posterior view; weakly constricted near base in ventral view.

FIGURE 8. Evinus sinuatus  sp. nov. A –B, Male, female, dorsal view; C, head, dorso-anterior view; D, face; E, male, lateral view; F, male pygofer, lateral view; G –H, connective and aedeagus, lateral and ventral view; I –J, 2 nd abdominal tergite, dorsal and anterior view; K –L, male 1 st sternal apodeme, dorso-anterior and anterior view; M –N, male 2 nd sternal apodeme, dorsal and anterior view; O –P, male pygofer, caudal and ventral view.

FIGURE 9. Evinus tenuis  sp. nov. A, Male, dorsal view; B, head, dorso-anterior view; C, face; D, male, lateral view; E, male pygofer, lateral view; F –G, connective and aedeagus, lateral and ventral view; H –I, male 2 nd abdominal tergite, dorsal and anterior view; J –K, male 1 st sternal apodeme, dorso-anterior view and anterior view; L –M, male 2 nd sternal apodeme, dorsal and anterior view; N –O, male pygofer, caudal and ventral view.

Holotype: male, China, Yunnan Prov., Cangyuan County, Banhong Country, 1176m, 27.v. 2011, Coll. Lu Lin (NWAFU). Paratypes: 1 male, 1 female, Thailand: Kamphaeng Phet Mae Wong NP Chong Yen, 16 º 5.212 ’ N, 99 º 6.576 ’E, 1306m, Malaise trap, 29.iv – 5.v. 2008, Piluek C. leg; 1 male, 2 females, Petchaburi Kaeng Krachan NP km 33 /helipad, 12 º 50.177 ’ N, 99 º 20.688 ’E, 735m, Malaise trap, 18-25.v. 2009, Sinchai leg; 1 male, Petchaburi Kaeng Krachan NP Panernthung km27, 12º 49.302 ’ N, 99 º 22.263 ’E, 950m, Malaise trap, 18-25.v. 2009, Sinchai leg.

Remarks. This species resembles E. obscurus  in coloration but differs in having the anteclypeus tapered, male 1 S apodeme lobes shorter and broader, the 2 T apodeme lobes strongly convergent, the connective shorter with arms more strongly divergent, the aedeagus less expanded in ventral view. Intraspecific variation was observed among specimens from different localities ( China, Thailand) in the length of the 2 T apodeme lobes, in addition to slight differences in the length of the aedeagus. Additional collecting is needed to further elucidate the extent of such variation.

Etymology. The specific epithet refers to the relatively slender and attenuate shaft of the aedeagus.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Cicadellidae

Genus

Evinus