Phylogenetic species delimitation for the widespread spider wasp Ageniella accepta (Hymenoptera: Pompilidae), with new synonyms

IF 1.3 3区农林科学 Q2 ENTOMOLOGY

Insect Systematics & Evolution Pub Date : 2020-05-22 DOI:10.1163/1876312X-00002207

C. Waichert, Joseph S. Wilson, J. Pitts, C. Dohlen

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引用次数: 5

Abstract

Ageniella is the second-most diverse spider wasp genus in Ageniellini (Pepsinae). The Ageniella (Ageniella) accepta species-group is found from Canada to Panama and is composed of three Nearctic species: A. accepta (Cresson), A. blaisdelli (Fox), and A. conflicta Banks. Within this group, species-level identification is difficult, because diagnostic characters are questionable, and subjective for both males and females. Furthermore, sexes of each species are not reliably associated. Herein, we investigate sex associations and the validity of described species within the A. accepta species-group based on three molecular markers (cytochrome oxidase I, wingless, long-wavelength rhodopsin) by using maximum likelihood and Bayesian phylogenetic analyses, and species-delimitation approaches. Additionally, we mapped 12 morphological traits onto the molecular phylogeny to discuss evolution of diagnostic characters. We concluded that the three species of the A. accepta species-group are actually a single, wide-ranging species with strong geographical signal. Moreover, our results suggest introgression at the mitochondrial level.

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广布蜘蛛蜂Ageniella accepta的系统发育物种划分及其新同义词

小蜂属(Ageniella)是小蜂科(Ageniellini)中种类第二丰富的蛛蜂属。Ageniella (Ageniella) accepta种群分布于加拿大至巴拿马，由三个新北极物种组成:A. accepta (Cresson)， A. blaisdelli (Fox)和A. conflicta Banks。在这个群体中，物种水平的鉴定是困难的，因为诊断特征是可疑的，而且对雄性和雌性都是主观的。此外，每个物种的性别并不可靠地联系在一起。本文基于细胞色素氧化酶I、无翅、长波紫红质三种分子标记，采用最大似然分析、贝叶斯系统发育分析和物种划分方法，研究了拟南花属物种群中所描述物种的性别关联和有效性。此外，我们将12个形态特征映射到分子系统发育上，以讨论诊断特征的进化。结果表明，这3个种实际上是一个广泛分布的单一种，具有较强的地理信号。此外，我们的结果表明在线粒体水平上存在渗入。

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

Insect Systematics & Evolution 生物-进化生物学

CiteScore

3.00

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Insect Systematics & Evolution (ISE) publishes original papers on all aspects of systematic entomology and the evolutionary history of both extant and extinct insects and related groups. Priority is given to taxonomic revisions and phylogenetic studies employing morphological and molecular data. ISE also welcomes reviews and syntheses that can appeal to a wide community of systematic entomologists. Single species descriptions, regional checklists, and phylogenetic studies based on few taxa or single molecular markers will generally not be accepted.