Sarimissus maculifrons, Wang & Zhang & Bourgoin, 2019

Wang, Menglin, Zhang, Yalin & Bourgoin, Thierry, 2019, On the tribe Sarimini with two new genera from south of China (Hemiptera, Fulgoromorpha, Issidae), Zootaxa 4706 (2), pp. 375-383 : 377-378

Sarimissus maculifrons sp. nov.

( Figs 1–11 )

Diagnosis. This new species appears similar to Eusarima contorta Yang, 1994 , but differs by: 1) Frons with a pair of curved eyelike markings on the disc ( Fig. 4 ), but the latter species without these eyelike markings ( Chan & Yang,1994, fig. 45B); 2) Capitulum of gonostylus thick and short, with tip obtuse ( Fig. 9 ), but long and slender, with tip acute in E. contorta ( Chan & Yang, 1994, fig. 45E); 3) Aedeagus with a pair of short hook-like processes ( Fig. 10 ), but the latter species with a pair of extremely long processes ( Chan & Yang, 1994, fig. 45H).

Etymology. This species name is a combination of Latin words “ macula ” and “ frons ”, referring to the light yellowish M-shaped markings on the frons.

Description. Length: male (including forewings) (N=4): 5.1–5.2 mm.

Coloration. Vertex brown, anterior, lateral and posterior margins all brown ( Figs 1, 3 ). Compound eyes grayish brown, supported by grayish callus ( Figs 1, 3 ). Frons brown, with an obvious light yellowish M-shape eyelike marking on the middle and some irregular yellow patches near base ( Fig. 4 ); median carina brown from apex extending to near base, but not reaching to the frontoclypeal suture ( Fig. 4 ); apical margin and lateral margins brown ( Fig. 4 ). Antennae brown ( Fig. 4 ). Postclypeus mainly brown, with light yellow near the base ( Fig. 4 ). Gena brown, with one light yellow transverse fascia below compound eyes in lateral view ( Fig. 2 ). Pronotum brown, anterior and posterior margins brown, median carina brown, only visible at middle ( Figs 1, 3 ). Mesonotum brown, median and sublateral carinae all brown ( Figs 1, 3 ). Forewings tawny to brown, longitudinal veins brown ( Figs 1, 5 ). Hind wings brown ( Fig. 6 ). Legs tawny, distributed with irregular brownish markings ( Figs 2, 4 ).

Head and thorax. Vertex 1.5 times wider in midline than long in midline, lateral margins nearly parallel, slightly concave at middle ( Figs 1, 3 ). Frons 1.0 times wider at widest part than long in midline, 1.6 times wider at widest part than apical margin ( Fig. 4 ); lateral margins nearly parallel from the apex to the middle of compound eyes, then expand to below antennae and finally narrow to the base ( Fig. 4 ); sublateral carinae weakly present or invisible ( Fig. 4 ). Pronotum 3.0 times wider at posterior margin than long in midline, 1.0 times longer in midline than vertex ( Figs 1, 3 ); median carina weakly present or absent, with a small incision on each side of midline ( Figs 1, 3 ). Mesonotum with anterior margin 1.8 times wider than long in midline, 1.7 times longer in midline than pronotum, median carina visible from anterior margin elevated to the basal 1/4, sublateral carinae elevated from anterior margin to the posterior margin ( Figs 1, 3 ). Forewings 2.2 times longer at longest part than widest part, CuA forking slightly after MP ( Figs 2, 5 ), MP1+2 vein bifurcate at apical 1/6 ( Figs 2, 5 ), MP3+4 vein forked at apical 1/6 ( Fig. 2 ) or unforked ( Fig. 5 ), CuA1 and CuA2 unforked ( Fig. 5 ). Metatibiotarsal formula: (2)–7/(8-10)/2.

Male genitalia. Anal tube in lateral view curved downward near apex ( Fig. 7 ), in dorsal view long cylindrical, widest at basal 1/3, 3.0 times longer in midline than widest part, apical margin rounded, lateral margins nearly parallel at apical half and convex at basal half ( Fig. 8 ); anal opening located at basal 1/3 of anal tube ( Fig. 8 ). Pygofer in lateral view long and slender, 2.6 times higher in midline than broad in midline, dorsal margin strongly sloping posterior, posterior margin convex at middle ( Fig. 7 ); tectiductus large and broad ( Fig. 7 ). Gonostylus in lateral view gradually broadened to apex, widest at apical 1/4, dorsal margin elevated at middle, then parallel with ventral margin; ventral margin deeply expand downward at basal 1/9 then straight with caudo-ventral angle subrectangular ( Fig. 9 ). Capitulum of gonostylus directed cephalad, with an arc-shaped antero-lateral process on the base and a finger-shaped postero-lateral process at base ( Fig. 9 ). Periandrium dorsal lobes slightly shorter than lateral lobes, the apical part laminar ( Fig. 10 ). Periandrium lateral lobes in lateral view rounded in the apex ( Fig. 10 ), in ventral view the median part deeply biforked ( Fig. 11 ). Periandrium ventral lobe in lateral view rounded at apex ( Fig. 10 ), in ventral view with apical margin rounded, lateral margins nearly parallel ( Fig. 11 ). Aedeagus with a pair of short broad hook-like processes derived from apical 1/6, this pair of processes in lateral view curved downward then extending to the apical 1/3 of periandrium, tip pointed slightly surpassing the ventral margin ( Fig. 10 ), in ventral view this pair of processes curved outward ( Fig. 11 )

Type materials. Holotype: ♂, China, Hainan Province, Jianfengling, Chahekou , N 18º 44.727′, E 108º 59.632′, 235 m, 17 viii 2010, coll. Guo Zheng ( IZCAS).

Paratypes: 1♂, same data as holotype ( IZCAS) ; 1♂, China, Hainan Province, Dialuoshan , N 18º 40.440′, E 109º 52.600′, 494 m, 10 viii 2010, coll. Guo Zheng ( IZCAS) ; 1♂, China, Hainan Province, Yinggeling, Yinggezui , 797 m, 22 viii 2010, coll. Guo Zheng ( IZCAS) .

Figures

FIGURES 1–6. Sarimissus maculifrons sp. n., male 1. Habitus, dorsal view; 2. Habitus, lateral view; 3. Head and thorax, dorsal view; 4. Habitus, frontal view; 5. Forewing; 6. Hind wing. Venation terminologies on Figs 5, 6 as in the text.

FIGURES 7–11. Sarimissus maculifrons sp. n., male 7. Genitalia, lateral view; 8. Anal tube, dorsal view; 9. Gonostylus, lateral view; 10. Phallic complex, lateral view; 11. Phallic complex, ventral view.