Abstract
The present study describes a new Lithobiomorpha subgenus, Lithobius (Sinuispineus)subgen. nov., and two new species, L. (Sinuispineus) sinuispineussp. nov. and L. (Sinuispineus) minuticornissp. nov. from China. The representatives of the new subgenus are characterized by a considerable sexual dimorphism of the ultimate leg pair 15, having the femur and tibia unusually enlarged in males, and the dorsal side of the femur with curved posterior spurs. These features distinguish Lithobius (Sinuispineus)subgen. nov. from all other subgenera of Lithobius. The diagnosis and the main morphological characters of the new subgenus and of the two new species are given for both male and female specimens.
Highlights
IntroductionLocated in the east of the Asian continent, on the western shore of the Pacific Ocean, the People’s Republic of China has a land area of approximately 9.6 million square kilometres, and is the third largest country in the world (Zhang 2011)
The two new species resemble each other in having the antennae with commonly 20 articles, 8–10 ocelli on each side arranged in three irregular rows, the posterior two ocelli comparatively large, the Tömösváry’s organ larger than the adjoining ocelli, 2+2 prosternal teeth, a coxal pore formula of 3–5, and female gonopods with 2+2 coniform spurs
T10 is the widest tergite in S. minuticornis instead of T8 in S. sinuispineus
Summary
Located in the east of the Asian continent, on the western shore of the Pacific Ocean, the People’s Republic of China has a land area of approximately 9.6 million square kilometres, and is the third largest country in the world (Zhang 2011). The World Catalogue of Centipedes (Chilopoda) (Bonato et al 2016) includes more than 1,200 valid species of Lithobiomorpha in nearly 130 extant genera and subgenera in only two families. The myriapod fauna of China is still poorly known, and very little attention has been paid to the study of Lithobiomorpha, which has only 85 species and subspecies (Pei et al 2019; Qiao et al 2019a, 2019b) currently known from the country. A new subgenus and two new species have recently been discovered when examining material of Lithobiomorpha from Fujian and Henan provinces. The description of these new taxa is given below
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