Stirellus pakhtunensis Shah & Duan, 2020

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 : 404

Stirellus pakhtunensis Shah & Duan sp. n.

( Fig. 3 )

Measurement. Male: 3.6mm.

Description. Coloration. General color pale to greyish brown ( Fig. 3 A–D). Crown with two spots near posterior margin ( Fig. 3A, 3C ). Pronotum and scutellum with two dark brown longitudinal stripes ( Fig. 3A, 3C ). Eye red, surrounded with yellow band ( Fig. 3 A–D). Pronotum slightly darker ( Fig. 3A, 3C ). Scutellum yellowish brown. Forewing brownish with prominent white venation ( Fig. 3 A–B).

Morphology. Crown almost subequal to pronotum, almost as long as distance between eyes, anteriorly slightly angulate ( Fig. 3A, 3C ). Eye relatively large. Ocellus next to eye slightly below anterior margin of crown ( Fig. 3B, 3D ). Face as long as broad, with faded transverse markings near eyes ( Fig. 3D ). Pronotum median length nearly as long as median length of crown ( Fig. 3A, 3C ). Mesonotum and scutellum shorter than pronotum. Forewing macropterous; appendix distinctive, prolonged around wing apex; 4 apical and 3 anteapical cells, inner anteapical cell opened at base. ( Fig. 3 A–B).

Male genitalia. Pygofer lobe broad basally with apex truncate, without macrosetae ( Fig. 3E ). Subgenital plate slightly convex laterally, apically truncate, macrosetae not uniseriate laterally ( Fig. 3F ). Valve triangular. Styles narrow, apophysis digitate, slightly curved laterally ( Fig. 3F ). Connective with stem equal in length to arms ( Fig. 3F ). Aedeagal shaft long, geniculate basally, nearly parallel to aedeagal base, with preapical anterior expansion visible in lateral and dorsal views, apex pointed and slightly curved dorsad, gonopore apical ( Fig. 3 G–H).

Material examined. Holotype: Pakistan: Khyber Pakhtunkhwa: 1³, Manki , 34°0′34.5096 N, 73°19′44.4432 E, sweeping hand net, 20 August 2019, coll. Bismillah Shah.

Distribution. Pakistan.

Remarks. This species can be easily distinguished from other species in this genus by the distinctive external appearance.

Etymology. This species is named for Pakhtun-khwa province in Pakistan where the type specimen has been collected.

Figures

FIG. 3. Stirellus pakhtunensis Shah & Duan sp. n. A: habitus, dorsal view; B: habitus, lateral view; C: head and thorax, dorsal view; D: face; E: male pygofer, lateral view; F: subgenital plates, valve, styles and connective, dorsal view; G: aedeagus, dorsal view; H: aedeagus, lateral view.