Abstract
Euborellia (Anisolabididae: Anisolabidinae) is one of the most speciose genera of earwigs (Dermaptera), and its species-level classification is difficult. To settle the classification of brachypterous species with abbreviated tegmina recorded from East and Southeast Asia, we examined the morphology and reproductive isolation of three tentative Euborellia species, and analyzed the DNA barcoding region of the mitochondrial cytochrome oxidase subunit I (COI) gene. The observed complete reproductive isolation among the three Euborellia taxa and considerable differentiation in the COI sequences clearly show that each should be treated as a separate species. Based on morphology, distribution and the DNA sequence, we identify Euborellia sp. 1 of Malaysia as E. annulata (Fabricius), a circumtropical cosmopolitan with no records of a fully winged form. Samples from Ioto Island (= Iwo-jima Island: Ogasawara Islands, southern Japan) were also identified as this species. Euborellia sp. 3, from the main islands of Japan, was generally larger and lacked a Y-shaped pigmented area on the penis lobe, which is characteristic of Euborellia sp. 1. We propose reinstating E. pallipes (Shiraki) as the oldest name for this taxon. Euborellia sp. 2, even the brachypterous form, can be distinguished from these two species by its paler coloration (particularly the femora), ecarinate post-abdomen, and the shape of the male genitalia (parameres). We tentatively identify this species as E. philippinensis Srivastava based on the morphology of the brachypterous form, although the macropterous form cannot be distinguished from E. femoralis (Dohrn).
Funder
Japan Society for the Promotion of Science
Subject
Animal Science and Zoology,Ecology, Evolution, Behavior and Systematics
Reference58 articles.
1. To the knowledge of earwigs of the subfamily Anisolabidinae (Dermaptera, Anisolabididae) from SE Asia.;Anisyutkin;Entomological Review,1998
2. Dermaptera of Sichuan and Yunnan. Results of Chinese-Soviet Zoological and Botanical Expeditions to SW China, 1955–1957.;Bey-Bienko;Entomologicheskoe Obozrenie,1959
3. Dermaptera.;Brindle;Insects of Micronesia,1972
4. The types of Dermaptera described by Fabricius.;Brindle;Entomologist’s Record and Journal of Variation,1981
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献