Microsarimodes flavomaculata Wang & Bourgoin, 2020

Wang, Menglin, Zhang, Yalin & Bourgoin, Thierry, 2020, Notes on genera of Sarimini with description of two new species in the genera Microsarimodes and Tetrichina (Hemiptera: Fulgoromorpha: Issidae), Zootaxa 4858 (4), pp. 589-600 : 592

Microsarimodes flavomaculata Wang & Bourgoin , sp. nov.

ZooBank registration: LSID urn:lsid:zoobank.org:act:2A1DD540-D5FD-4895-9D39-29497A6668A3

( Figs 1–9 )

Diagnosis. This new species is similar to Microsarimodes tumida Chang & Chen, 2019 , but differs by: 1) Pronotum with several tubercles on the disc ( Figs 1, 3 ), but without tubercles in M. tumida ( Chang et al., 2019, fig. 18); 2) The yellow patches on frons intersperse in basal half of frons ( Fig. 4 ), while only basal 1/3 on frons in M. tumida ( Chang et al., 2019, fig. 20); 3) Male anal tube in dorsal view with lateral margins paralleled in apical 2/3, anal opening located at basal 1/3 of anal tube ( Fig. 6 ), while lateral margins gradually narrower from middle part to the apex, anal opening located at middle of anal tube in M. tumida ( Chang et al., 2019, fig. 24); 4) Capitulum of gonostylus much longer, the tumefied protuberance located in the postero-lateral area with its apex exceeding to the apical margin ( Fig. 7 ), while capitulum of gonostylus short, the tumefied protuberance located in the anterior-lateral area with its apex reaching to the middle in M. tumida ( Chang et al., 2019, fig. 25: b).

Etymology. Combination of Latin words “ flavus ” meaning yellow and “macula” meaning patch, referring to the yellow marking on the basal half of the frons.

Description. Length: male (including forewings) (N=1): 5.2 mm.

Coloration. Vertex brown, margins brown, disc with weak yellow median carina ( Figs 1, 3 ). Compound eyes grayish brown, supported by tawny callus ( Figs 1, 3 ). Frons light yellow in basal half and brown in apical half, the boundary between the light yellow and brown areas M-shaped ( Fig. 4 ); apical margin black, lateral margins mostly black with basal slightly yellow ( Fig. 4 ); median carina yellow, only elevated and visible at apical half ( Fig. 4 ). Frons with around 11 to 14 large irregular yellowish tubercles on apical and lateral areas ( Fig. 4 ). Antennae brown ( Fig. 4 ). Postclypeus yellow, with two broad interrupted brownish longitudinal bands ( Fig. 4 ). Genae tawny ( Fig. 2 ). Pronotum brown, anterior and posterior margins brown; median carina yellow, only visible at middle, lateral areas with several grayish inconspicuous tubercles ( Figs 1, 3 ). Mesonotum brown, median carina yellow, sublateral carinae brown ( Figs 1, 3 ). Forewings tawny, longitudinal veins mostly brown and transverse veins tawny ( Figs 1, 2 ). Hindwings brown ( Fig. 1 ). Legs light yellow ( Fig. 4 ).

Head and thorax. Vertex 1.6 times wider in width at middle than length at middle, anterior margin slightly angularly convex, posterior margin roundly concave with the level deeper than anterior margin, lateral margins slightly concave inward at middle, then convex near base, postero-lateral angles rounded ( Figs 1, 3 ). Frons 1.0 times wider at widest part than long in midline, 1.5 times wider at widest part than apical margin ( Fig. 4 ); apical margin straight ( Fig. 4 ). Pronotum 2.5 times wider in posterior margin than long in midline, 1.2 times longer in midline than vertex ( Figs 1, 3 ); anterior margin sharply angularly convex, posterior margin straight ( Figs 1, 3 ). Mesonotum with anterior margin 1.7 times wider than long in midline, 1.6 times longer in midline than pronotum, median carina from anterior margin to the base but not elevated, sublateral carinae elevated from anterior margin but not reaching to the posterior margin ( Figs 1, 3 ). Forewings with MP 1+2 bifurcate at apical 1/6, MP 3+4 single ( Fig. 2 ). Metatibiotarsal spinulation formula unknown (hind legs missing).

Male genitalia. Anal tube in lateral view with ventral margin straight ( Fig. 5 ); in dorsal view long cylindrical, 3.3 times longer in midline than widest part, lateral margins paralleled at apical 2/3, then gradually narrower to base, apical margin convex with middle part almost straight ( Fig. 6 ); anal opening located at basal 1/3 of anal tube ( Fig. 6 ). Pygofer in lateral view rectangular, 2.4 times longer in midline than width at middle; dorsal margin straight, posterior margin slightly convex caudad ( Fig. 5 ). Gonostylus triangular in lateral view, highest near middle, dorsal margin of gonostylus almost straight, oblique toward to capitulum, ventral margin with postero-ventral angle strongly convex ( Figs 5, 7 ). Capitulum of gonostylus long and broad, triangular, gradually narrowing from base to apex, tip pointed, antero-lateral margin with a spinous process, postero-lateral margin with a roundly tumefied protuberance at base with its apex exceeding to the apical margin ( Figs 5, 7 ). Periandrium dorsal lobe rounded in the apex in lateral view ( Fig. 8 ); periandrium lateral lobe bearing density of minute teeth on dorsal margin ( Fig. 8 ); periandrium ventral lobe slightly shorter than lateral lobes ( Fig. 8 ), rounded in the apical margin in ventral view ( Fig. 9 ). Aedeagus with a pair of large hook-like processes originated from apical 1/5 along the ventral margin, then curved to dorso-anterior, reaching to the middle of periandrium ( Fig. 8 ), in ventral view, this pair of processes curved to outward ( Fig. 9 ).

Type materials. Holotype: ♂, China, Yunnan Province, Mangshi , 30 iv 2012, coll. Menglin Wang.

Figures

FIGURES 1–9. Microsarimodes flavomaculata sp. nov. 1 adult, dorsal view 2 adult, lateral view 3 head and thorax, dorsal view 4 adult, frontal view 5 male genitalia, lateral view 6 male anal tube, dorsal view 7 gonostylus, lateral view 8 phallic complex, left lateral view 9 phallic complex, ventral view.