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| Laevifacies quadrialata Liao, Wang & Che, 2019 |
Abstract
Laevifacies quadrialata gen. et sp. nov. is described from Hainan Province, China based on morphological data. COI data (DNA barcodes) is utilized to confirm the sexual dimorphism occurring in Laevifacies quadrialata gen. et sp. nov. Melanozosteria nitida Brunner von Wattenwyl, 1865, is reported from Guangxi Province, China. A key to the Chinese Polyzosteriinae is provided.
Keywords: Blattaria, cockroaches, Laevifacies, Melanozosteria, molecular identification, morphology
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| Laevifacies quadrialata sp. nov. A–F, I–K male holotype A in dorsal view B in ventral view C pronotum, in dorsal view D head, in ventral view E femur, in ventral view F tibia, in ventral view I fore tarsus, in ventral view J mid tarsus, in ventral view K hind tarsus, in ventral view. G–H female paratype G in dorsal view H in ventral view. Scale bars: 5 mm (A–B, G–H); 1 mm (C–F, I–K). |
Laevifacies gen. nov.
Laevifacies quadrialata sp. nov.
Generic diagnosis: Body small to medium, thinner in male, thorax slightly broader than abdomen. Surface smooth and shining. Pronotum slightly semicircular, vertex barely exposed. Male with vestigial tegmina and hind wings on mesonotum and metanotum respectively, both nearly triangular; female only with vestigial tegmina, its shape similar to that of male, without hind wings. Legs strong but short, coxae with punctation, front femora Type A2. Mid and hind metatarsus with strong spines, claws symmetrical. Cerci strong, short and symmetrical. Styli long and symmetrical. Supra-anal plate in male short, triangular; subgenital plate broad and short, slightly quadrilateral and symmetrical. L1 divided into two parts, L3 bifurcated, one branch short, the other one long, R1 nearly claw-like and R2 large, hooked.
Etymology: The name Laevifacies is derived from two Latin words laevis and facies, referring to the smooth and shining surface of terga. The gender of Laevifacies is feminine.
Shuran Liao, Zongqing Wang and Yanli Che. 2019. A New Genus and A New Species in the Subfamily Polyzosteriinae (Blattodea, Blattidae) from China. ZooKeys. 852: 85-100. DOI: 10.3897/zookeys.852.33325
