Orbita parallelodroma Meng & Wang

Rui Meng, Yinglun Wang & Daozheng Qin, 2016, A key to the genera of Issini (Hemiptera: Fulgoromorpha: Issidae) of China and neighbouring countries, with descriptions of a new genus and two new species, European Journal of Taxonomy 181, pp. 1-25 : 17-18

Orbita parallelodroma Meng & Wang , gen. et sp. nov.

urn:lsid:zoobank.org:act:A16DD267-2238-4F9C-8555-DA44D0A88D76

Figs 4–5

Etymology

The specific epithet is constituted from the ancient Greek words “parallelos” meaning parallel and “dromos” meaning running, refers to the pair of long spiniform processes of phallobasal lateral lobe directing caudad parallel to each other.

Material examined

Holotype

CHINA: ♂, Fujian Province, Dehua City, Shuikou Town, 118.4º E, 25.7º N, 11 Nov. 1974, coll. Jikun Yang.

Paratypes

CHINA: 1 ♂, 2 ♀♀, same data as holotype; 1 ♀, Fasheng Li, other data same as holotype; 1 ♂, 1 ♀, 6 Nov. 1974, other data same as holotype; 1 ♀, 13 Nov. 1974, other data same as holotype.

Measurements and ratios

TL: ♂ (n = 3): 5.8–5.9 mm; ♀ (n = 5): 6.2–6.4 mm; LTg: ♂ (n = 2): 4.8–4.9 mm; ♀ (n = 2): 4.1–4.6 mm; BV/LV = 2.0; BF/LF = 1.3; LM/LP = 2.1; BT/LM = 2.1; LTg/BTg = 2.9; LA/BA (♂) = 2.7; LA/ BA (♀) = 3.3.

Description

BODY. Brown alternated with yellow green and fuscous.

HEAD. Vertex fulvous, with light green margins and median line ( Fig. 4 A). Frons fulvous with two large, black, glossy protuberances between eyes; brown transverse line near middle of orbs and yellowish green central carina, dark brown near frontoclypeal suture; margins black ( Fig. 4 C). Genae fawn with fuscous speckles ( Fig. 4 B). Clypeus dark brown near frontoclypeal suture and central fascia yellowish green ( Fig. 4 C). Eyes fuscous ( Figs 4 A–B).

THORAX. Pronotum fulvous with yellowish green median line, two fuscous pits in middle, lateral lobes brown. Mesonotum dark brown, with median line and anterior angles green; lateral area with fuscous speckles ( Fig. 4 A).

TEGMEN. Brown with fuscous speckles; longitudinal veins brown; transverse veins green ( Fig. 4 E).

HIND WING. Brown, veins fuscescent ( Fig. 4 F).

LEGS. Fore and median femora fulvous with fuscous longitudinal fascia laterally and transverse stripe apically; fore and median tibiae fulvous with fuscous transverse stripes respectively at base and apex; hind femur fulvous with fuscous fascia at apex, hind tibiae fulvous, tips of teeth black. Metatibiotarsal formula 2-3+8/8/2.

ABDOMEN. Dark brown.

MALE GENITALIA. Dorsal phallobase lobe with a short process at apical one-third of lateral margin; lateral lobe turned into a long spiniform process directing caudad and a thick unciform process directing cephalad with apex curved caudad at basal third; ventral lobe narrow and long, weakly wide at middle and narrowing to obtuse and membranous apex; apical margin concave medially ( Fig. 5 D–E). Genital style in lateral view with hind margin distinctly excavated at middle ( Fig. 5 B). Capitulum of style narrowing to obtuse apex directing cephalad with a small blunt tooth in lateral view; in caudal view, lateral teeth thin and falcate ( Fig. 5 B–C).

FEMALE GENITALIA. Gonoplac with apical margin strongly convex at dorsal half; disc elevated near base in dorsal view; fork well pigmented ( Fig. 5 J–K). Proximal part of posterior connective lamina of gonapophyses IX slightly convex in lateral view; median field bifurcate at apex in dorsal view ( Fig. 5 G–H). Endogonocoxal process foliate; apex obtuse with thin setae ( Fig. 5 M); endogonocoxal lobe moderately long and weakly concave inward, well sclerotized ( Fig. 5 M). Anterior connective laminae of gonapophysis VIII broad; ventral margin straight, bearing small obtuse tooth near subapex and then concave to apex; apical group with three small teeth, and bearing a tiny tooth in opposite direction of the three teeth; lateral group with five keeled teeth ( Fig. 5 M). Sternum VII with apical margin distinctly arcuately convex at middle ( Fig. 5 L).

Figures

Fig. 4. Orbita parallelodroma Meng & Wang, gen. et sp. nov., holotype. A. Habitus, dorsal view. B. Habitus, lateral view. C. Frons and clypeus. D. Head and thorax, latero-ventral view. E. Tegmen. F. Hind wing. Scale bars = 1 mm.

Fig. 5. Orbita parallelodroma Meng & Wang, gen. et sp. nov. — A – F. Holotype. A. Male anal tube, dorsal view. B. Male genitalia, lateral view. C. Capitulum of style, dorsal view. D. Phallobase, left view. E. Phallobase, apical half, ventral view. F. Aedeagus, left view. — G. Gonapophyses IX and gonaspiculum bridge, dorsal view. H. Gonapophyses IX and gonaspiculum bridge, right view. I. Female anal tube, dorsal view. J. Gonoplac, left view. K. Gonoplac, dorsal view. L. Sternum VII, ventral view. M. Gonocoxa VIII and gonapophysis VIII, right view. Scale bars = 0.2 mm.