Stirellus capitatus (Distant)

Shah, Bismillah, Naveed, Hassan & Duan, Yani, 2020, A new species and four new records of Stirellus Osborn & Ball (Hemiptera Cicadellidae: Deltocephalinae: Stenometopiini) from Pakistan with a revised key to species, Zootaxa 4895 (3), pp. 398-410 : 401

Stirellus capitatus (Distant) n. rec.

( Fig. 1 )

Viridomarus capitatus Distant, 1918: 70 .

Viridomarus brevialatus Xing, Dai & Li, 2009: 590 .

Viridomarus laticellus Xing, Dai & Li, 2009: 592 .

Stirellus capitatus, Li, Dai & Xing, 2011: 271 .

Stirellus capitatus, Duan, Webb & Zhang, 2016: 108 .

Measurement. Male: 3.0–4.0mm; female: 4.6mm.

Description. Coloration. Stramineous. The vertex lateral margins generally pale stramineous ( Fig. 1 A–C); vertex tip with small blackish spot anteriorly ( Fig. 1A, 1C ).

Morphology. Crown longer than twice breadth between the eyes, elongately subtriangular, tapering to apex and widely subacute ( Fig. 1 A–C). Ocellus on anterior margin far from eye. Eye comparatively small ( Fig. 1 A–C). Anteclypeus narrowing to apex, not exceeding beyond normal curve of genae. Pronotum almost as long as 0.5 times crown median length ( Fig. 1 A–C). Mesonotum and scutellum shorter than pronotum ( Fig. 1 A–C). Forewing macropterous to submacropterous, generally exposing abdomen apex in female and occasionally in male ( Fig. 1 A–B).

Male genitalia. Pygofer side with a small number of macrosetae present dorsally, apex slightly angulate ( Fig. 1F ). Subgenital plate highly convex laterally, macrosetae almost uniseriate centrally ( Fig. 1G ). Style apophysis digitate, curved laterally ( Fig. 1J ). Connective with stem shorter than arms ( Fig. 1I ). Aedeagal shaft long, strongly bent dorsally near base, tip sharp, somewhat curved dorsad, gonopore apical ( Fig. 1K ).

Material examined. Pakistan: Khyber Pakhtunkhwa: 1♀, Jalbai , 34°0′43.8444 N, 72°16′0.0228 E, sweeping hand net, 19 July 2019, coll. Bismillah Shah.

Distribution. Pakistan, China, India, Thailand.

Remarks. This species can be recognized by its comparatively long head, and by the tip of vertex with small dark brown spot. This is the first record of this species from Pakistan.

Figures

FIG. 1. Stirellus capitatus (Distant) n. rec. A: habitus, dorsal view; B: habitus, lateral view; C: head and thorax, dorsal view; D: face; E: end of female abdomen, ventral view; F: male pygofer, lateral view; G: subgenital plate, dorsal view; H: valve, dorsal view; I: style, dorsal view; J: connective, dorsal view; K: aedeagus, lateral view.