Sarimissus, 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 : 376-377

Sarimissus gen. nov.

Type species: Sarimissus maculifrons sp. nov., here designated.

Diagnosis. This new species appears similar to Eusarima Yang, 1994 , but differs by: 1) Frons with sublateral carinae invisible ( Fig. 4 ) or only weakly present at apical part, but in Eusarima , the sublateral carinae elevated from apical area extend to near base ( Chan & Yang, 1994, fig. 45B); 2) ScP+RA on forewing relatively shorter, not reaching apical 1/3 of forewing ( Fig. 5 ), while almost reaching apical 1/ 4 in Eusarima ( Chan & Yang, 1994, fig. 45C); 3) Phallic complex with only a pair of processes ( Fig. 10 ), while two pairs are present in Eusarima ( Chan & Yang, 1994, fig. 45H).

This new genus is also similar to the genus Dactylissus Gnezdilov & Bourgoin, 2014 , but differs by: 1) Vertex narrower, around 1.5 times wider than long in midline ( Fig. 3 ), while around 2.0 times wider in Dactylissus ( Gnezdilov et al., 2014, fig.10); 2) Gonostylus trapezoidal in lateral view ( Fig. 9 ), but trianglular in Dactylissus ( Gnezdilov et al., 2014, fig.18); 3) Periandrium without basal processes and aedeagus with a pair of lateral processes derived from the apical 1/6 ( Fig. 10 ), but in Dactylissus , periandrium with several pairs of basal processes and aedeagus without lateral processes ( Gnezdilov et al., 2014, figs 15, 16).

Etymology. The name belongs to an arbitrary letter association between the names of “ Sarima ” and “ Issus ”, respectively type genus name of the tribe Sarimini and family Issidae , to which the new genus belongs to. The gen- der is masculine.

Description. Head with compound eyes a little wider than pronotum ( Figs 1, 3 ). Vertex rectangular, around 1.5 times broader than long, margins elevated, anterior margin slightly angularly convex, posterior margin anteriorly angularly concave at middle, median carina absent on disc ( Figs 1, 3 ). Frons almost the same width in widest part than length in midline, slightly broaden below level of compound eyes, the lateral angles rounded; margins elevated, dorsal margin slightly concave, median carina elevated from apex extending to near base but not reaching frontoclypeal suture ( Fig. 4 ), sublateral carinae only weakly visible at apical part or invisible ( Fig. 4 ). Frontoclypeal suture slightly convex ( Fig. 4 ). Clypeus smooth, without median carina ( Fig. 4 ). Rostrum reaching hind coxae, the apical segment nearly the same length as subapical segment. Gena in lateral view oblique with a small protuberance above the clypeus ( Fig. 2 ). Antenna with scape extremely short, pedicel rounded ( Fig. 4 ). Pronotum triangular, margins elevated, anterior margin angularly protruded, posterior margin nearly straight, median carina only present on the middle ( Fig. 3 ) or invisible. Mesonotum a little longer than pronotum, anterior margin nearly straight, tricarinated on the disc ( Fig. 3 ). Forewings obviously longer than broad, longitudinal veins elevated ( Figs 1, 2, 5 ); costal area relatively broad, ScP+RA and RP fused with a short stem, ScP+RA median length, exceeding the middle of costal margin but not reaching apical 1/3 of forewing, RP extremely long, reaching to the outer margin of forewing ( Figs 2, 5 ); MP forking only once near the middle into the forked MP1+2 and forked or unforked MP3+4 ( Figs 2, 5 ); CuA forking slightly after MP ( Figs 2, 5 ), CuA1 and CuA2 unforked ( Figs 2, 5 ). Clavus closed, Pcu and A1 fused at middle of clavus ( Figs 1, 5 ). Hind wings developed of Sarimini type with 3-lobes, Pcu-A1 lobe as wide as ScP-R- MP-Cu lobe, Pcu and A1 anastomosing on a long distance, Pcu unbranched, A2 lobe developed, a little wider than Pcu-A1 lobe, A2 vein non branched ( Fig. 6 ). Metatibia with two lateral spines on apical half.

Male genitalia. Anal tube in lateral view extremely long and narrow, surpassing the posterior margin of gonostyli, dorsal margin inclined downward from basal 1/6 ( Fig. 7 ). Pygofer in lateral view long rectangular, much lon- ger than broad, dorsal margin slightly sloping posterior, posterior margin convex near middle ( Fig. 7 ). Gonostylus trapezoidal in lateral view, dorsal margin regularly convex, posterior ventral lobe short with caudo-ventral angle nearly rectangular ( Figs 7, 9 ). Capitulum of gonostylus short and broad, with an antero-lateral protuberance and a posterior protuberance near the base ( Figs 7, 9 ). Periandrium symmetric, divided into dorsal lobes, lateral lobes and ventral lobe in the apex, dorsal and lateral lobes a little longer than ventral lobe in lateral view ( Fig. 10 ). Aedeagus with a pair of processes derived from the apical 1/6 ( Fig. 10 ).

Distribution. China (Hainan province).

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.