Exploring the diversity of Eupolyphaga Chopard, 1929 (Blattodea, Corydioidea): species delimitation based on morphology and molecular analysis

Abstract

Eupolyphaga Chopard, 1929 is a cockroach genus mainly endemic to China. In this study, the species diversity of this genus is further explored through morphology and molecular analysis. Four species are described new to science: Eupolyphaga miracidia Qiu, sp. nov., Eupolyphaga udenostyla Qiu, sp. nov., Eupolyphaga reducta Qiu, sp. nov., and Eupolyphaga simila Qiu, sp. nov. New knowledge on some known species is added, including new distribution records and characteristics of females. Forty-five COI sequences were newly sequenced and a molecular species delimitation analysis was performed using ABGD method. Eighteen molecular operational taxonomic units were obtained by ABGD analysis, which are nearly consistent with the results of morphological delimitation.

Phylogenetic reconstruction of Corydioidea (Dictyoptera: Blattodea) provides new insights on the placement of Latindiinae and supports the proposal of the new subfamily Ctenoneurinae

“…included) are wingless and usually have settled habitats. We speculate that their weak dispersal ability might lead them to evolve independently due to geographic isolation (Han et al, 2022; Qiu et al, 2017). The similarity of their habitat could also lead to convergence in their external morphology, while the latter could explain why both lineages are phylogenetically distinct.…”

“…fusca (Chopard, 1929), comb.nov., P. hengduana (Woo and Feng, 1992), comb.nov., P. maculata (Qiu, Che and Wang, 2018), comb.nov., P. nigrifera (Qiu, Che and Wang, 2018), comb.nov., P. nigrinotum (Qiu, Che and Wang, 2018), comb.nov., P. pilosa (Qiu, Che and Wang, 2018), comb.nov., P. reducta (Qiu, 2022), comb.nov., P. simila (Qiu, 2022), comb.nov., P. thibetana (Chopard, 1922), comb.nov., P. wooi (Qiu, Che and Wang, 2018), comb.nov., P. xuorum (Qiu, Che and Wang, 2018), comb.nov., P. yunnanensis (Chopard, 1922), comb.nov.…”

Review of the genus Laena Dejean, 1821 (Coleoptera, Tenebrionidae) from Gansu Province, China, with the description of a new species

“…An identification key to the five Laena species from Gansu is also provided; it is based on examined specimens. DNA barcoding has been widely used in species delimitation in insects ( Hebert et al 2004 ; Hajibabaei et al 2006 ; Smith et al 2007 ; Liu et al 2018 ; Han et al 2022 ; Li et al 2022 ) since it was initially proposed by Hebert et al (2003) . To clarify the taxonomic status of the new species, the mitochondrial gene COI was sequenced, and a maximum-likelihood phylogenetic tree was constructed to explore the position of L. hui sp.…”