Maculocris Dai, Yao, & Ren.

Dai, Rui, Chen, Ziyi, Du, Sile, Ren, Dong & Yao, Yunzhi, 2025, New Early Cretaceous pentatomorph bugs from China and the systematic position of Kobdocoridae, Acta Palaeontologica Polonica 70 (1), pp. 17-24 : 18-19

Genus Maculocris Dai, Yao, & Ren. nov.

Zoobank LSID: urn:lsid:zoobank.org:act:.

Etymology: A combination of Latin macula, a spot and Classic Greek coris, true bug, in reference to the presence of the characteristic spots on the hemelytra. Masculine.

Type species: Maculocris yixiani Dai, Yao, & Ren sp. nov.; by monotypy; see below.

Diagnosis. —As for the type species.

Remarks.—The new genus and Clavaticoris Yao et al., 2012 , from the same locality, the two significantly differ in morphological characteristics: head pentagonal, with similar length and width (vs. the latter with a rectangular head, length greater than the width); second segment shorter than the last two segment combined (vs. second segment much greater than the last two segment combined); pronotum callosities present (vs. callosities absent); labium only extends to the metacoxae (vs. labium extending to the third abdominal segment); and the ovipositor long, bisecting the last four abdominal segments (vs. the ovipositor only bisecting the last three abdominal segments).

The new genus and Halonatusivena Du et al., 2016 , are from the same locality, but are also the most morphologically similar. Both of them have pentagonal head with similar length and width; the length of the second segment is no longer than the sum of the last two segments; both have distinct callosities on the pronotum. These shared characteristics distinguish them from other genera within the family. Therefore, we believe that the new genus is more closely related to Halonatusivena . However, they can be distinctly differentiated based on the following characteristics: the new genus has a larger body size of about 20 mm (vs. medium-sized, less than 10 mm of Halonatusivena ); eyes relatively small, anterior almost adjacent to margin of pronotum. (vs. compound eyes are larger and anterior distant from the margin of pronotum of Halonatusivena ); the distance between the ocelli is greater than the distance from an ocellus to a compound eye (vs. ocelli are close together, with the distance between them smaller than the distance from an ocellus to a compound eye of Halonatusivena ); scutellum punctate, triangulate without median trifurcate carina, covering party the clavus (vs. scutellum without puncture, with a approximately T-shaped carina, narrowing gradually towards the apex and not covering the clavus of Halonatusivena ).

Stratigraphic and geographic range.—As for the type species.