Maculocris yixiani Dai, Yao, & Ren 2025, sp. nov.

Maculocris yixiani Dai, Yao, & Ren sp. nov. Figs. 1–3. Zoobank LSID: urn:lsid:zoobank.org:act: C2EC4776-4122-46EA-BE22- A3DFFF4B7DB4. Etymology: Derived from the Yixian Formation, where it was discovered. Type material: Holotype CNU-HET-LB2024010, male, well preserved bodies, antennae and forewings. Paratypes: CNU-HET-LB2024011, male; CNU-HET-LB2024012 – 15 female; CNU-HET-LB2024016–19, male; well preserved bodies, labium, leges and ovipositor from the type locality and horizon. Type locality: Huangbanjigou, Chaomidian Village, Beipiao City, Liaoning Province, China. Type horizon: Yixian Formation, lower Aptian, Lower Cretaceous. Diagnosis.—Body large (Fig. 1A). Head nearly rounded pentagonal, as long as wide (Fig. 2B). Eyes relatively small, anterior almost adjacent to margin of pronotum (Fig. 1A). Length of antennomere II less than the combined length of antennomere III and IV (Fig. 3B 4). Bucculae reaching at the midline of compound eyes, half the length of head (Fig. 2B). Labium reaching metacoxae (Fig. 1C). Ocelli situated closer to eyes than to each other (Fig. 2A). Pronotum impunctate; callosities well-developed, oval; posterior angles rounded (Fig. 2A). Scutellum punctate, triangular without sharp vertices, covered part of abdominal (Fig. 3C). Forewings corium with two rounded markings (Fig. 1A). Ovipositor long, bisecting the last four abdominal segments (Fig. 1C, D). Description.—Body elongated, about 2.76 times as long as wide. Head pentagonal, slightly shorter than pronotum, length about equal to width. Mandibular plates not projecting past midpoint of clypeus. Antenna four segments, slender, slightly shorter than half of body, antennomere I shortest, slightly exceeding the apex of head, antennomere II longest, antennomere III and IV subequal in length; antennomeres I–III subcylindrical, antennomere IV fusiform. Labium four-segmented, straight, appressed to venter, reaching metacoxae, labiomere I longest, 2.05 times as long as labiomere II, labiomere II–III subequal in length, labiomere IV shortest, tapering apically. Compund eyes relatively small, anterior almost adjacent to margin of pronotum. Ocelli present, closer to eyes than to each other, interocular gap narrower than the diameter of the ocelli. Thorax smooth. Pronotum 1.56 times as wide as long, lateral margin convex, posterior angles feebly rounded. Pronotal collar and carinae absent. Pronotum with two large callosities on anterior area, callus broader than intercallus space. Scutellum subequilateral triangular; about 0.93 times as long as pronotum at midline, 0.85 times as wide as long. Hemelytron poorly preserved, membrane venation not visible. Corium relatively small, almost 1/3 length of hemelytron. Corium with two obvious rounded markings, one of oval shapes in 1/3 length middle of corium, the other one nearly circular and relatively small on posterior margin of corium. R, M and Cu fuse in the basal of corium. Clavus well developed, clavate, tapers from the base to the apex, claval commissure absent. Legs slender. Femora stout, about 2 times as thick as corresponding tibiae. Hind legs longer than fore and mid legs, metafemur longest, about 1.28 times as long as mesofemur, about 1.09 times as long as profemur, metatibia longest, about 1.27 times as long as mesotibia, about 1.65 times as long as protibia. Tarsi three-segmented, second shortest, third tarsomeres 3.91 times the length of the second. Pulvilli present. Abdomen oval, abdominal connexivum sternites II–VII visible, Ovipositor long, bisecting the last four abdominal segments, about 1/3 of body length (Table 1). Stratigraphic and geographic range.—Yixian Formation, lower Aptian, Lower Cretaceous of Huangbanjigou, Chaomidian Village, Beipiao City, Liaoning Province, China.