ABSTRACT
Hesperentomon bolense sp. n., described from Northwest China, is distinguished from other Hesperentomon spp. by having foretarsal sensillum b clearly shorter than c, a robust sensillum c broader than the other foretarsal sensilla, 18 posterior setae on the mesonotum and 16 posterior setae on the metanotum, 12 posterior setae on urotergites II-VI (P1a and P2a absent), 8 posterior setae on urosternites IV-VI (Pc absent), and absence of seta P2a on urotergite VII. The morphological characters of all described species of Hesperentomon are compared, and an updated identification key to species is given. The DNA barcodes of H. bolense sp. n. were compared to similar species of the genus; the K2P genetic divergences were 0-5.1% between individuals of H. bolense sp. n., but 21.4%-27.3% between H. bolense sp. n. and other congeneric species. The molecular data further confirmed H. bolense as a distinct species.
Subject(s)
Arthropods , DNA Barcoding, Taxonomic , Animals , China , DNA , Genetic DriftABSTRACT
Three new species of family Pauropodidae: Decapauropus biconjugarus Qian & Bu, sp. n., D. tibeticus Qian & Bu, sp. n. and Hemipauropus quadrangulus Qian & Bu, sp. n. are described and illustrated from southeastern Tibet, China. The genus Hemipauropus is recorded for the first time from China. This is the second report of pauropods from Tibet.
ABSTRACT
A new genus Songius is established and two new species--Songius rugosus from Qixia Mountain and Laoshan Forest Park, Jiangsu, and Tiantangzhai, Dabie Mountain, Anhui, and Songius bicruris from Tiantangzhai--are described. A novel surface structure of the pygidial tergum was observed by scanning electron microscopy. The genus is established on the basis of the distinctive appearance of the modification of the surface structure of the pygidial tergum.
