Koreocoris
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publication ID |
https://doi.org/ 10.5281/zenodo.183082 |
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DOI |
https://doi.org/10.5281/zenodo.6228629 |
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persistent identifier |
https://treatment.plazi.org/id/03B787C1-7760-FFF6-E6EC-FBDDACCA9744 |
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treatment provided by |
Plazi |
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scientific name |
Koreocoris |
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Koreocoris CHO et KWON, gen. nov.
Type species: Koreocoris bicoloratus CHO et KWON, sp. nov.
Description. Body oval; dorsal surface clothed with dense black hairs. Head vertical, with black erect pubescence; vertex without basal transverse carina, not sulcate longitudinally. Antenna rather short and slender; 1st segment slightly shorter than head width including eyes; 2nd segment somewhat tapered apically and shorter than pronotal width; 3rd segment about half as thick as 2nd; 4th segment slightly longer than 1st. Labium reaching middle coxae.
Pronotum shining, not punctate, densely covered with black suberect hairs, lateral margin not carinate; collar broad, about as thick as 1st antennal segment, with erect black hairs. Mesoscutum clothed with blackish decumbent pubescence; scutellum shining, weakly punctate, bearing blackish suberect hairs. Hemelytra shining, irregularly and shallowly punctate, with uniform blackish brown hairs; cuneus 1.2 times as long as basal width. Legs pale brown; femora with two narrow dark rings apically and one wide dark ring medially, tibiae with longitudinal stripe at 1/3 apically, tibial spines black; 3rd tarsomere dark brown.
Male genitalia ( Figs. 3–6 View FIGURE 3 – 6 ): Genital segment densely covered with erect hairs. Left paramere strongly curved ( Fig. 4 View FIGURE 3 – 6 ); sensory lobe well developed, widely projecting, with long hairs; hypophysis hooked at apex ( Fig. 5 View FIGURE 3 – 6 ). Right paramere almost straight, with blunt hypophysis ( Fig. 6 View FIGURE 3 – 6 ). Vesica with bundle of spinelike spicules, a ventral wingshaped sclerite and a lateral coiled-branched lobe-sclerite ( Fig. 3 View FIGURE 3 – 6 ): gonopore with distinct rim; ejaculatory duct somewhat widened subapically. Phallotheca with tubercle along apical margin.
Female genitalia: The abdomens of two female specimens were flattened; the reason for this is unknown. We therefore failed to observe the female genitalia.
Discussion. This new genus is characterized by an oval body, a vertex lacking transverse carina, an impunctate pronotum, hemelytra shallowly punctate with a blackish short pubescence, and a peculiarly shaped vesica. Somewhat resembling the Palaearctic genus Lygocorides Yasunaga (1991) at first sight, this genus appears to be related to a member of the Lygus Complex. However, this unique genus is not member of the Lygus Complex. As mentioned by Yasunaga et al. (2002), the Lygus Complex is characterized by a pronotum more or less distinctly punctuate (if pronotal punctuation is indistinct, then it has a vertex with distinct transverse basal carina). Lygocorides agrees with this diagnostic character of Lygus Complex, in that its pronotum is distinctly punctuate. However, Koreocoris differs from Lygocorides in that its pronotum is not punctuate, and it has a vertex without transverse basal carina. This genus also shares many characters as diagnosed above with other mirine genera, but Koreocoris is easily distinguished from these genera by the presence of a peculiarly-shaped vesica.
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