Affiliation:
1. Institute of Natural and Environmental Sciences, University of Hyogo Sanda Japan
2. The Museum of Nature and Human Activities Sanda Japan
3. Moriguchi Japan
4. Matsusaka Japan
5. Nagoya Japan
6. The Nature Conservation Society of Japan Tokyo Japan
7. Faculty of Agriculture Tokyo University of Agriculture Atsugi Japan
Abstract
AbstractWetland biodiversity is currently declining on a global scale. Wetland biodiversity understanding is critical for determining the wetlands' conservation value. In this study, Macroplea Samouelle, 1819 (Coleoptera: Chrysomelidae) was discovered in Aomori Prefecture, Honshu Island, Japan. Only two Macroplea species have been recorded in Japan, M. japana (Jacoby, 1885) and M. mutica (Fabricius, 1792). Macroplea japana had been unrecorded for 60 years before being rediscovered in Honshu Island in 2022, and a single adult M. mutica female was discovered in Hokkaido Prefecture in 2003. The discovered individuals were concluded to be M. mutica based on morphological and molecular analyses. Although morphological differences were observed with the Eurasian M. mutica individuals, the male genitalia was nearly identical to M. mutica. For the molecular phylogenetic analysis based on COI and 28S sequences, Macroplea individuals in Japan were clustered with M. mutica on the Eurasian Continent. This is the first record of this species on Honshu Island (and the second in Japan), as well as the first record of adult males. This species would require conservation policies and additional distributional surveys.
Funder
Japan Society for the Promotion of Science
Subject
Insect Science,Ecology, Evolution, Behavior and Systematics
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