Formibelle vladimiri, Sohail & Usman & Naveed & Zhang, 2019

Sohail, Kamran, Usman, Muhammad, Naveed, Hassan & Zhang, Yalin, 2019, New Oriental genus in the tribe Caliscelini (Hemiptera: Fulgoromorpha: Caliscelidae) from Pakistan, Zootaxa 4691 (1), pp. 57-62 : 58-60

Formibelle vladimiri sp. nov. Sohail & Zhang

Description (male). Length: ♂ 4.6 mm (n=1). Coloration (♂): Dark brown to black. Metope black, lateroapical margins yellow or white. Genae black, with yellowish transverse stripe below the scape. Clypeus black, rostrum dorsally yellow apically brown. Eyes greyish brown. Antennae black having whitish sensory plate organs on and near the apical lobe. Coryphe yellow with black markings. Pronotum black. Mesonotum yellow with black markings or spots. Tegmina reddish brown with distinct large bluish spot on each side, wing base and lateral margins black. Abdominal tergites laterally and genital segments black. Tergite III (below the elytra) dirty white or ivory, and VI–VII medially yellow or brown. Anal segment black. Sternites black except segment III which has dirty white or ivory posterior margin. Abdominal sternites IV–VIII dorsomedially with dirty white or ivory bands. Legs black ventrally yellowish or white.

Metope convex centrally without keels, slightly concave near anterior margins of coryphae, longer than wide widest between antennae narrower towards clypeus ( Figs 1, 4 ). Antennae long, short scape. Pedicel long tubular with short rounded apical process, flagellum long ( Fig. 3, 4 ). Large compound eyes with relatively small nearly round area (callus) near base of antennae ( Fig. 4 ). Rostrum reaching hind coxae ( Fig. 4 ). Coryphe wider than long with black markings lacking carina deeply incised with strongly elevated yellow lateral margins, anterior margin convex posterior margin straight ( Figs 2, 3 ). Pronotum wider than coryphe without keels extended transversely beyond eyes anterior and posterior margins straight. Mesonotum as long as pronotum without keels weakly grooved wider centrally, anterior margin straight ( Figs 2, 3 ). Elytra short saddle-shaped reaching tip of fourth abdominal segment with obscure venation ( Figs 1, 2 ). Abdomen centrally concave, posterior margin convex or raised ( Figs 1, 2 ). Legs long not foliate with one lateral spine in basal one third and five apical spines on hind tibia. Tarsomere I and II each with two spines lateroapically, ventrally with short thick pad like structures. Tarsomere I twice the length of tarsomere II.

Male genitalia. In lateral view, pygofer longer than wide; both anterior and posterior margins of pygofer concave in middle, wider in basal third ( Fig. 5 ). Anal tube oval in dorsal view, in lateral view tubular, narrower anteriorly and tapering posteriorly ( Figs 7, 5 ). Epiproct short ( Fig. 7 ). Phallobase narrowing to apex in lateral view and looks like woodpecker head ( Fig. 9, 10 ). Aedeagus with a pair of hooks directed ventrally versus latero-externally ( Figs 8, 9 ). Genital style long wider in apical half, posteriorly convex at apex smoothly curved towards base. Anterior margin of style concave near base of capitulum with hump-like processes dorsolaterally. Capitulum of style very long conical, apically and laterally spinose dentated ventrally ( Fig. 6 ).

Female: Unknown.

Remarks. Formibelle vladimiri sp. nov. is close to Formiscura indica Gnezdilov & Viraktamath, 2011 but can be readily differentiated by its convex coriphe, two distinct large bluish spots on forewing, oval anal tube (in dorsal view) and gonostylus with hump-like processes on dorsolateral margin under the capitilum. This species is also similar to Asarcopus palmarum Horváth, 1921 in having convex coryphe but can be differentiated by carination on vertex; shape and spots of forewing; medially concave abdomen and male genitalia.

Host plants: Unknown.

Type material: Holotype: ♂, Pakistan, Khyber Pakhtunkhwa Province, Swat , 35°13'21.76"N, 72°25'32.93"E, 2993.39 m, 5 vii 2018, sweeping grasses, coll. Kamran Sohail.

Etymology. This new species is named after Vladimir M. Gnezdilov (Russian Academy of Sciences, Zoological Institute, St Petersburg, Russia) for his valuable contribution to the taxonomy of the family Caliscelidae .

Figures

FIGURES 1–4. External morphology of Formibelle vladimiri sp. nov. (Holotype); 1, 2. Habitus, lateral and dorsal view; 3. Coryphe, pronotum and mesonotum, dorsal view; 4. Head, ventral view.

FIGURES 5–10. Male genitalia of Formibelle vladimiri sp. nov. (Holotype); 5. Pygofer, anal segment and genital style, lateral view; 6. Gonostyle, lateral view; 7. Anal tube, dorsal view; 8. Phallobase and connective, dorsal view; 9. Same, left lateral view; 10. Right lateral view; ‘a’ and ‘b’ aedeagal hooks and ‘c’ process of aedeagus.