Two new species of Mecyclothorax Sharp, 1903 (Coleoptera: Carabidae: Moriomorphini) from the Island of Hawai‵i

IF 0.6 4区农林科学 Q4 ENTOMOLOGY

Pan-Pacific Entomologist Pub Date : 2022-03-31 DOI:10.3956/2022-98.1.1

K. Will, J. Liebherr

引用次数: 0

Abstract

Abstract. Two species of the Mecyclothorax argutor (Sharp, 1903) species-group, M. neonomas sp. nov. and M. brunneonubiger sp. nov., are newly described from Mauna Loa volcano on the Island of Hawai‵i. Mecyclothorax neonomas is most similar morphologically to M. swezeyi Liebherr, 2008 of Mauna Kea and is therefore proposed as its adelphotaxon. Conversely, the adelphotaxon proposed for M. brunneonubiger is M. blackburnianus Liebherr, 2008, precinctive to Kohala volcano, Island of Hawai‵i. Based on the younger geological age of origin of Mauna Loa relative to Mauna Kea and Kohala, it is hypothesized these two newly described, sympatric species arose via progressive colonization of Mauna Loa during development of the geologically dynamic Island of Hawai‵i. A revised key to all Mecyclothorax species known from Hawai‵i Island is provided.

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夏威夷岛Mecyclothoras Sharp的两个新种，1903（鞘翅目：轮翅目：Moriomorphini）

摘要在夏威夷岛的Mauna Loa火山上，新描述了Mecyclothoras argator（Sharp，1903）物种群中的两个物种，M.neonomas sp.nov.和M.bruneonobiger sp.nov。Mecyclovorax neomas在形态学上与M.swezeyi Liebherr，2008年的Mauna Kea最相似，因此被认为是其adelphotaxon。相反，为M.bruneonobiger提出的adelphotaxon是M.blackburnianus Liebherr，2008年，夏威夷岛科哈拉火山的管辖区。根据Mauna Loa相对于Mauna Kea和Kohala起源的较年轻的地质年龄，假设这两个新描述的同域物种是在夏威夷地质动力学岛的发展过程中通过Mauna Loan的渐进定殖而产生的。提供了夏威夷岛已知的所有Mecyclophoras物种的修订密钥。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Pan-Pacific Entomologist 生物-昆虫学

CiteScore

0.50

自引率

20.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Pan-Pacific Entomologist (ISSN 0031-0603) is published quarterly (January, April, July and October) by the Pacific Coast Entomological Society, in cooperation with the California Academy of Sciences. The journal serves as a refereed publication outlet and accepts manuscripts on all aspects of the biosystematics of insects and closely related arthropods, especially articles dealing with their taxonomy, biology, behavior, ecology, life history, biogeography and distribution. Membership in the Pacific Coast Entomological Society includes subscription to The Pan-Pacific Entomologist, and Society Proceedings typically appear in the October issue of each volume.