Dictyohimalaya nepalensis Song & Liang, 2020

Song, Zhi-Shun, Jiang, Gong-Cheng & Liang, Ai-Ping, 2020, Dictyopharidae of Nepal (Hemiptera: Fulgoromorpha), with description of a new genus, Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 60 (2), pp. 545-552 : 549-550

Dictyohimalaya nepalensis Song & Liang , sp. nov.

( Figs 1A , 2A–D , 3A–F )

Type locality. Nepal, Bagmati province, Sindhupalchok district, Bhotekoshi municipality, Kodari village, ca. 27.9735° N 85.9628° E, 2300 m a.s.l.

Type material. Hඈඅඈඍඒඉൾ: J, NEPAL: 9 km S. of Kodari, 28.x.1977, G.F. Hevel ( USNM, dry-mounted, glued on card point, postabdomen separated in a microvial on the same pin; Fig. 1A ).

Description. Measurements (in mm). Body length 14.7; head length (from apex of head to base of eyes) 2.7; head width (including eyes) 1.4; forewing length 8.9.

Coloration. General color brownish ochraceous, marked with pale green and purplish-red on head and thorax, and dark brown on abdomen in dorsal view ( Fig. 1A ). Vertex and genae mostly dark brown in front of eyes, frons yellowish green, broad area between intermediate carinae and median carina reddish ochraceous. Compound eyes brown, ocelli purplish-red. Clypeus ochraceous. Pronotum and mesonotum brownish ochraceous, areas of median, intermediate, lateral marginal, and paranotal carinae of pronotum and median and lateral carinae and lateral marginal areas of mesonotum yellowish green. Forewings with membrane hyaline, veins ochraceous, pterostigmal area dark brown. Thorax yellowish ochraceous ventrolaterally. Legs pale to dark brown, inner surface of fore and middle femora and tibiae with a row of black spots. Abdomen dorsally dark brown and black with numerous paler brownish spots; ventrally mostly blackish brown, posterior margins of sternites yellowish ochraceous; male and female terminalia dark brown.

Structure. Head ( Figs 2A–C ) distinctly slender and elongate, longer than pronotum and mesonotum combined (about 1.3: 1). Vertex with ratio of length at midline to width between eyes 6.9: 1 ( Fig. 2A ). Frons with ratio of length at midline to maximum width below antennae 4.7: 1 ( Fig. 2C ). Forewings hyaline, ratio of length to width about 3.0: 1 ( Fig. 2D ).

Male genitalia. Pygofer, in lateral view ( Fig. 3B ), with dorso-posterior margin more or less convex in middle; in ventral view ( Fig. 3C ) longer than in dorsal view ( Fig. 3A ), with ratio of ventral to dorsal width about 1.9: 1. Gonostyles ( Figs 3B, C ) elongate, apex strongly expanded, posterior margin nearly straight; upper process very elongate, acute at apex. Aedeagus ( Figs 3D–F ) relatively small and stout compared with gonostyles, endosomal processes very short, not extended from phallotheca and invisible from outside. Phallobase produced into long sclerotized process from ventral base, directed ventrad; bases of dorsal and lateral parts and most portion of ventral part on phallobase sclerotized and pigmented, the remainder membranous; dorsal part with a large lobe, produced into pair of small processes at apex in dorsal view ( Fig. 3D ); dorsolateral apical parts produced into pair of stout lobes surrounded by 15–17 large spines subapically in lateral view ( Fig. 3E ); ventral part with a pair of elongate apical lobes bearing 8–11 long spines in ventral view ( Fig. 3F ). Segment X, in dorsal view ( Fig. 3A ), oval and broadest medially, with ratio of length to maximum width 1.1: 1; in lateral view ( Fig. 3B ), short and robust, with ventral margin gradually widening from base to apex; anal style large, beyond apical ventral margin of segment X.

Etymology. The new species is named for its occurrence in Nepal. Adjective.

Distribution. So far only known from Kodari, Nepal.

Figures

Fig. 1. Habitus of Dictyopharidae in Nepal. A – Dictyohimalaya nepalensis Song & Liang, sp. nov., dorsal view; B–C – Raivuna sp. (B – dorsal view; C – ventro-lateral view). D – Orthopagus lunulifer Uhler, 1897, dorsal view. E–F – Tenguna medogensis Song & Liang, 2007 (E – dorsal view; F – lateral view). Scale bars: 2 mm.

Fig. 2. Dictyohimalaya nepalensis Song & Liang, sp. nov. A – head, pronotum and mesonotum, dorsal view; B – head and pronotum, lateral view; C – head and pronotum, ventral view; D – forewing. Scale bars: 1 mm.

Fig. 3. Dictyohimalaya nepalensis Song & Liang, sp. nov. A – male segment X and pygofer, dorsal view; B – male pygofer, gonostyles, and segment X, lateral view; C – male pygofer and gonostyles, ventral view; D – aedeagus, dorsal view; E – aedeagus, lateral view; F – aedeagus, ventral view. Scale bars: 0.5 mm.