Omoplax mukojimensis Souma, 2022

Souma, Jun, 2025, An illustrated key to the lace bugs (Hemiptera, Heteroptera, Tingidae) from “ Oriental Galapagos ” (the Ogasawara Islands, Japan), with descriptions of three new species of the endemic genus Omoplax Horváth, 1912, ZooKeys 1250, pp. 243-284 : 243-284

publication ID	https://doi.org/10.3897/zookeys.1250.160064
publication LSID	lsid:zoobank.org:pub:5B12A0D0-ACED-414A-9144-30436C3B6BA9
DOI	https://doi.org/10.5281/zenodo.16994891
persistent identifier	https://treatment.plazi.org/id/5189B309-9046-5C13-96EA-CE59DA41E20B
treatment provided by	ZooKeys by Pensoft
scientific name	Omoplax mukojimensis Souma, 2022
status

Treatment

Figs 2 H View Figure 2 , 4 H View Figure 4 , 6 H View Figure 6 , 8 H View Figure 8 , 10 H View Figure 10 , 11 H View Figure 11 , 13 H View Figure 13 , 14 H View Figure 14

Omoplax mukojimensis Souma, 2022 a: 122 . Holotype: ♀; type locality: Japan • “ 東京都小笠原村聟島南部 ” [= Ogasawara Islands, Mukojima Group, Mukojima Island, Southern part ]; KPMNH.

References.

Shimamoto and Ishikawa (2023: 94) (catalog); Souma (2023: 9) (monograph).

Material examined.

No additional specimens have been collected since the original description ( Souma 2022 a).

Diagnosis.

Omoplax mukojimensis is recognized among the other Omoplax species based on a combination of the following characteristics: rostrum reaching middle part of mesosternum (Fig. 11 H View Figure 11 ); pronotal disc pale brown (Figs 4 H View Figure 4 , 6 H View Figure 6 ); hood more than 0.5 times as wide as maximum width of head across compound eyes, not reaching apex of clypeus (Fig. 14 H View Figure 14 ); paranotum with areolae throughout its length; anterior margin of hemelytron strongly curved downward in apical half (Figs 8 H View Figure 8 , 10 H View Figure 10 ); subcostal and discoidal areas of hemelytron united; costal area narrower than fused subcostal and discoidal areas; Sc (subcosta) vein of hemelytron indistinct in apical part of dorsal view; R + M (fused radius and media) vein of hemelytron indistinct, not carinate; and ventral surface of body dark brown (Figs 13 H View Figure 13 ).

Remarks.

Among all the Omoplax species, O. mukojimensis is most similar to O. majorcarinae in terms of its general habitus; however, the former can be distinguished from the latter based on the paranotum with areolae throughout its length (without areolae in the middle part and with areolae in the remaining parts in O. majorcarinae ) (Figs 3 G View Figure 3 , 4 G, H View Figure 4 , 5 G View Figure 5 , 6 G, H View Figure 6 , 14 G, H View Figure 14 ). Morphological differences between O. mukojimensis and the five other Omoplax species are presented in the identification key below.

Distribution.

Japan: Ogasawara Islands: Mukojima Group (Mukojima Island) (Fig. 19 View Figure 19 ) ( Souma 2022 a). Omoplax mukojimensis is endemic to Mukojima Island.

Host plant.

Unknown ( Souma 2022 a).

Bionomics.

Omoplax mukojimensis inhabits an evergreen broad-leaved forest with a subtropical climate in the Ogasawara Islands ( Souma 2022 a). A single adult was collected in April; nymphs are unknown ( Souma 2022 a).