Chelyolygus Yasunaga, 2024, new genus

Key to species of Chelyolygus, new genus 1. Scutellum with a dark, broad, median stripe in whole length; posterior part of corium uniformly fuscous (Fig. 1C, E); Indonesia (Bali) ................................... C. cheroti, new species – Scutellum pale, or with a triangular mark anteriorly (Fig. 1E) or with faint, brown, narrow, mesal stripe (Fig. 1G); posterior part of corium with noticeable pale portions .........................2 2. Basic colouration pale orange-brown (Fig. 1I, J); both pronotum and hemelytra almost glabrous, very shiny; basal half of cuneus fuscous; Taiwan (Pingtung) ...................................................... ............... C. bipuncticollis (Poppius, 1915), new combination – Basic colouration pale brown, or milky- or ivory-brown; pronotum and/or hemelytra setose; base of cuneus always pale (median part of cuneus sometimes darkened)........................3 3. Apex of scutellum and inner margin of clavus (at least anterior half) infuscate..........................................................................4 – Entire scutellum and inner margin of clavus pale.................6 4. Base of antennomere II darkened; cuneus sometimes with a circular spot medially (Fig. 7A, B); Indochina (Thailand and Vietnam) ...................................... C. wolskiorum, new species – Base of antennomere II pale; cuneus entirely pale, sometimes with obscure inner margin ......................................................5 5. Male antennomere II dark brown, with pale basal ¼–¼ (Fig. 4A, B); female metafemur shorter than basal width of pronotum; Taiwan .... C. fuhoshoensis (Poppius, 1915), new combination – Male antennomere II pale brown, with darkened apical ¼–⅓ (Fig. 4F, G); female metafemur equal in length to basal width of pronotum; Nepal (lowland) ........ C. parsanus, new species 6. Dorsum with clear striped pattern; base of antennomere II pale (Fig. 6B, F); corium and clavus with brown, narrow, continuous stripes along wing veins and fractures (Fig. 6A, F); Singapore .............................. C. virgulatellus, new species – Dorsum widely whitish, without clear striped pattern; base of antennomere II darkened; corium and clavus with greyish brown, interrupted, fragmentary stripes (Fig. 1A); Bali .......... .................................................... C. tabananicus, new species