Zygadenia diazromerali, Soriano & Delclòs, 2006

Soriano, Carmen & Delclòs, Xavier, 2006, New cupedid beetles from the Lower Cretaceous of Spain and the palaeogeography of the family, Acta Palaeontologica Polonica 51 (1), pp. 185-200 : 190-191

publication ID	https://doi.org/ 10.5281/zenodo.13643699
persistent identifier	https://treatment.plazi.org/id/455787BC-FF9D-2450-FC94-F8066A69FC5B
treatment provided by	Felipe
scientific name	Zygadenia diazromerali
status	sp. nov.

Treatment

Zygadenia diazromerali sp. nov.

Figs. 5 View Fig , 6A View Fig .

1988 Coleoptera (Cupedidae), Sanz et al. : pl. 1: 5. Type locality: Las Hoyas fossil site, La Cierva, Serranía de Cuenca , Cuenca Province, Spain .

Stratigraphic horizon: Second lithosome of finely laminated limestones of La Huérguina Formation, Barremian, Lower Cretaceous (Fregenal−Martínez and Meléndez 2000).

Derivation of the name: Named after Armando Díaz Romeral (Cuenca).

Material.— Holotype MCCM LH 12001 View Materials part and counterpart, very well preserved specimen, lacking antennae and part of legs. From the same locality the paratype MCCM LH 23851 View Materials , well preserved specimen without legs, and MCCM LH 20082 View Materials , only the part of an isolated elytra. All specimens from Las Hoyas fossil site.

Diagnosis.—From species with similar length of last ventrite and penultimate one ( Z. sibirica Ponomarenko, 2000 and Z. caudatus Ponomarenko, 1966 from Lower Cretaceous of Transbaikalia, and Z. caducus Ponomarenko, 1969 from Upper Cretaceous of Mid Asia) differs in bigger size and wider pronotum and elytra. Description.—Measurements: length 23.3–23.4 mm; width

11.6–12.0 mm; elytra length 17.9–18.2 mm. Body large and flattened. Head transverse, about 1.6 times as wide as long without mandibles, narrowed before eyes; cheeks and temples strongly shorter than eyes. Antennae filiform, scape and pedicel more than two times longer and wider than rest of antennomeres. Neck−like constriction weak. Pronotum transverse, about 1.8 times as wide as long, widest in its medial length, and narrowed roundly posterior and anteriorly; anterior angles rounded and not incised, lateral edges somewhat flattened, posterior angles distinct. Disc of pronotum with a large rectangular elevation divided by a longitudinal furrow. Prosternum somewhat longer than broader. Mesosternum nearly quadrate. Mesocoxae 1.7 times as long as wide, with exposed trochantin. Metasternum strongly transverse, about two times as wide as long. Abdomen with 5 visible ventrites with sharp relief, their posterior half elevated above anterior half. Last ventrite about 3.3 times as long as previous one. Elytra about three times as long as wide, its apex not drawn out into “tail”, epipleura comparatively wide, narrowing posteriorly, and with a row of distinct cells extending to apex. Main veins of elytra sharply distinct from intercalaries, 25 rounded cells form a row. Legs quite developed and elongate. Pro− and mesofemora about three times as long as wide, somewhat longer than metafemora. Metatibia strongly elongate, about 1.5 times as long as metafemora. Metatarsi tarsomeres subequal in length, almost as long as scape. Abdomen covered with small tubercles, larger on last abdominal ventrite and depressed parts of preceding ventrites.