Nipponocalisius, Heiss & Shimamoto & Nagashima, 2024

Heiss, Ernst, Shimamoto, Shusuke & Nagashima, Seidai, 2024, Review of the flat bug subfamily Calisiinae from Japan, with description of a new genus and four new species (Hemiptera: Heteroptera: Aradidae), Zootaxa 5432 (1), pp. 54-68 : 55-57

Genus Nipponocalisius gen. nov.

( Figs. 1–8 )

Nipponocalisius : Heiss (2023: 117). Unavailable in lack of description.

Type species: Nipponocalisius ishikawanus sp. nov.

Diagnosis. Macropterous (body length 2.50–3.10 mm) or brachypterous (body length 1.85–2.40 mm); general habitus ovate; clypeus elevated medially, fused with rim-like, dilated, lamellate genae, apices beset with tubercles; antennae usually about as long as, sometimes (in N. ishikawanus sp. nov.) longer than width of head, segment III slightly longer than II, IV longest and thickest; segment IV with variable number of plaques, but partly difficult to detect; pronotum transverse, with two pairs of longitudinal carinae, lateral ones shorter, joining median ones on anterior lobe; scutellum triangularly elevated at base with at least two pairs of large tubercles, lateral ones overlapping pronotum; lateral margins and median carina granulate or beset with tubercles; surface deeply punctured, with variable but specific colour pattern; lateral margins of deltg II–VII with a dorsal and a subventral row of three round or conical tubercles on each segment; transverse sclerite of tergite VIII exposed and visible from above in males and females.

Nipponocalisius gen. nov. is recognized at once by the rim-like, expanded genae ( Fig. 11a ); this character alone readily differentiates it from all genera of Calisiinae (as in Fig. 16a ). The genus most closely related to it is apparently Aradosyrtis ; it is distinguished from the latter by the combination of the characters presented above.

Etymology. The name of the new genus refers to Nippon, the native name of Japan, and the genus Calisius ; the gender is masculine.

Distribution. Japan.

Remarks. The generic name Nipponocalisius mentioned by Heiss et al. (2023), unavailable in lack of a description, pertains to this new genus.

Figures

FIGURES 1–10. Japanese Nipponocalisius and Aradosyrtis species, dorsal habitus. 1–2, N. ishikawanus sp. nov., (1) ♂, (2) ♀; 3–5, N. tomokunii sp. nov., (3–4) ♂, (5) ♀; 6–8, N. dimorphus sp. nov., (6) brachypterous ♂, (7) brachypterous ♀, (8) macropterous ♀; 9–10, A. shonoi sp. nov., (9) ♂, (10) ♀

FIGURES 11–16. Japanese Nipponocalisius and Aradosyrtis species, dorsal habitus and (a) ventral head. 11, N. ishikawanus sp. nov., ♂; 12, N. tomokunii sp. nov., ♂; 13–15, N. dimorphus sp. nov., (13) brachypterous ♂, (14) brachypterous ♀, (15) macropterous ♀; 16, A. shonoi sp. nov., ♂.