Processina chandrai, He & Yang & Yu, 2018

He, Hongli, Yang, Maofa & Yu, Xiaofei, 2018, Three new species of the leafhopper genus Processina (Hemiptera: Cicadellidae: Mileewinae) from Thailand, Zootaxa 4531 (2), pp. 279-287 : 281

Processina chandrai sp. nov.

( Figs. 1–4, 11–12 , 22–33 )

Description. Crown pale orange, with pair of dark brown semilunar markings on anterior margin, small dark brown small spot and line along coronal suture medially, and dark brown longitudinal stripe on each side, extended posterad across pronotum and mesonotum ( Figs. 1, 3 ). Eyes and ocelli pale. Forewing dark brown, translucent, veins yellow or yellowish-white ( Figs. 1, 2, 3, 4 ). Face pale yellow ( Figs. 11, 12 ). Venter of thorax pale, legs pale with apices of tarsi dark brown.

Male genitalia. Male pygofer in lateral view ( Fig. 22 ) square-shaped, posterior margin nearly truncate, posterior margin with several short microsetae; pygofer process robust, curving posterodorsally, with brush-like arrangement of spines apically and an acute process on dorsal side ( Figs. 22, 23 ). Subgenital plates ( Fig. 26 ) long, narrow, apices exceeding posterior margin of pygofer, with uniseriate macrosetae medially and some microsetae laterally. Aedeagus ( Figs. 24, 25 ) with shaft short, flattened laterally, constricted and recurved apically, extended into a large spine-like process; basal apodeme short, fan-shaped in lateral view. Connective ( Fig. 27 ) Y-shaped. Style ( Fig. 28 ) slender, apex narrowly rounded with dense fine setae.

Female Genitalia. Female seventh sternite ( Fig. 29 ) with posterior margin parabolically rounded; first valvulae ( Figs. 30, 31 ) relatively broad, parallel sided through most of length then abruptly constricted with acuminate apex, dorsal and apical sculpturing sparsely scaly; second valvulae ( Figs. 32, 33 ) weakly sclerotized in basal two thirds, distal part with dorsal margin broadly arched and with few widely spaced short, rounded teeth, abruptly constricted distally with beaklike apex.

Measurement. Male: 4.2 mm; female: 4.8 mm.

Material examined. Holotype: ♂, THAILAND, Chiang Mai Doi Chiang Dao WS Nature trail, 19°24.278 'N 98 °55.311'E, 491 m, Malaise trap, 21–28. x. 2007, Songkran & Apicharl leg, T3176 . Paratype: 1♀, THAILAND, Chiang Mai Doi Chiang Dao WS Nature trail, 19°24.278 'N 98 °55.311'E, 491 m, Malaise trap, 30.ix–7. x. 2007, Songkran & Apicharl leg, T3174 .

Etymology. The species is named in honor of Professor Chandra Viraktamath in recognition of his many contributions to knowledge of the Oriental leafhopper fauna.

Remarks. This new species is readily distinguished from other species of the genus by the peculiar shape of the male pygofer process and the hooked end of the aedeagus.

Distribution. Thailand.

Figures

FIGURES 1–15. Habitus (dorsal and lateral views) and face. 1–4, 11–12, Processina chandrai sp. nov. (male and female); 5– 8, 13–14, Processina topoarmata sp. nov. (male and female); 9–10, 15, Processina kamphaengensis sp. nov. Scale: 0.5 mm.

FIGURES 22–33. Processina chandrai sp. nov. 22–28, male genitalia. 29–33, female genitalia. 22. Pygofer, lateral view; 23. Pygofer process, lateral view; 24. Aedeagus, lateral view; 25. Aedeagus, ventral view; 26. Subgenital plate, ventral view; 27. Connective, ventral view; 28. Style, ventral view.; 29. Sternite VII, ventral view; 30. First valvulae, lateral view; 31. First valvulae, detail of sculpturing; 32. Second valvulae, lateral view; 33. Second valvulae, detail of sculpturing.