Stirellus indrus (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 : 401-402

Stirellus indrus (Distant) n. rec.

( Fig. 2 )

Typhlocyba indra Distant, 1908: 415 .

Aconura bipunctella Matsumura, 1914: 232 .

Paivanana indra, Distant, 1918: 95 .

Paivanana centristriata Dai & Li, 2003 in Dai, Chen & Li, 2003: 31 .

Stirellus indrus, Li, Dai & Xing, 2011: 273 ; Duan, Webb & Zhang, 2016: 116 .

Measurement. Male: 2.9mm; female: 3.6mm.

Description. Coloration. Normally pale greyish ( Fig. 2 A–C). Crown with two conspicuous black spots normally between anterior margins of eyes, and to some extent adjacent to eyes than each other ( Fig. 2A, 2C ). Face having two blackish round marks on each side below the antennal sockets ( Fig. 2D ). Forewing with longitudinal brown bands, tinged with purple or green color ( Fig. 2 A–B).

Morphology. Head subconical, nearly subequal in width to pronotum ( Fig. 2A, 2C ), with anterior margin smoothly curved to face, acutely angled ( Fig. 2D ). Crown somewhat longer than breadth between eyes ( Fig. 2A, 2C ). Ocellus next to the eye at anterior margin. Eye comparatively large ( Fig. 2 A–D). Anteclypeus tapering towards apex, exceeding beyond the normal curve of genae. Pronotum median length almost equal to the median length of crown ( Fig. 2A, 2C ). Mesonotum and scutellum smaller than pronotum. Forewing macropterous, normally exposing the apex of abdomen in females and occasionally in males ( Fig. 2 A–B).

Male genitalia. Pygofer side with few dorsal macrosetae, almost truncate apically ( Fig. 2E ). Subgenital plate a little concave laterally, macrosetae uniseriate laterally ( Fig. 2F ). Style narrow, with apophysis slender, digitate, to some extent curved laterally ( Fig. 2F ). Aedeagal shaft long, bent near base, parallel to base of aedeagus, with tip pointed, gonopore apical ( Fig. 2I ). Female hind margin of 7 th sternum almost straight.

Material examined. Pakistan: Khyber Pakhtunkhwa: 1♀, Nowshera , 34°0′53.8056 N, 71°58′59.3184 E, sweeping hand net, 21 July 2019, coll. Bismillah Shah ; 1♀, Faqir Baba , 33°54′53.4888 N, 72°9′56.2176 E, sweep-ing hand net, 20 July 2019, coll. Bismillah Shah ; Punjab: 1³, Pir Sohawa , 33°45′37.674 N, 73°3′57.528 E, sweep-ing hand net, 6 August 2018, coll. Bismillah Shah.

Distribution. Pakistan, China, India.

Remarks. Though there is considerable variation in color pattern of this species, it can be recognized by the vertex with two conspicuous black spots between the anterior margins of the eyes, and by a brown longitudinal line on the forewing.

Figures

FIG. 2. Stirellus indrus (Distant) n. rec. 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 and styles, dorsal view; G: connective, dorsal view; H: aedeagus shaft, dorsal view; I: aedeagus, lateral view.