Additions to the knowledge of the genus Allorhynchium van der Vecht, 1963 from China (Hymenoptera, Vespidae, Eumeninae)

Abstract

In this study, Halysituberosus Dong & Wang, 2017 is treated as a synonym of Allorhynchium van der Vecht, 1963 (syn. nov.). Halysituberosus yingjiangensis Dong & Wang, 2017 is a new synonym of Allorhynchium lugubrinum (Cameron, 1900) (syn. nov.) and Halysituberosus menglianensis Dong & Wang, 2017 is transferred to Allorhynchium as a new combination (comb. nov.). Based on additional COI gene sequencing and morphological characters including genitalia characters, both Allorhynchium diffinis (Giordani Soika, 1986) and Allorhynchium radiatum Li, Barthélémy & Carpenter, 2019 are confirmed to be valid species, and their males of the two species are described for the first time. Allorhynchium quadrimaculatum Gusenleitner, 1997 is newly recorded from China. A key to the Chinese species of Allorhynchium are also updated.

The potter wasp genus Allorhynchium from Vietnam, with descriptions of three new species and a new country record (Hymenoptera, Vespidae, Eumeninae)

“…The characters are taken from the descriptions and figures of van der Vecht (1963) , Giordani Soika (1986), Yamane (1990) , Girish Kumar and Sharma (2015) , Girish Kumar et al (2016) , Tan et al (2018) , Li et al (2019) , Luo et al (2020) , except specimens of A. argentatum , A.…”

“… metallicum from India and Malaysia. For the distribution and color of the species refer to van der Vecht (1963) , Tan et al (2018) , and Luo et al (2020) .…”

“… Allorhynchium can be distinguished from Anterhynchium most notably by the propodeal dorsum raised shelf-like to the same level as the metanotum and the forewing with the prestigma approximately half the length of the pterostigma, as measured along the posterior margin, although some species of the former are now known to share the first character. Recently, several studies have been published on the genus Allorhynchium from India, China, and northeast Asia ( Girish Kumar and Sharma 2015 ; Girish Kumar et al 2016 ; Tan et al 2018 ; Li et al 2019 ; Luo et al 2020 ). As a result of this work, a total of 18 species of Allorhynchium have been recorded from the Oriental region.…”

Phylogeny of Rhynchium and Its Related Genera (Hymenoptera: Eumeninae) Based on Universal Single-Copy Orthologs and Ultraconserved Elements

“…Hereafter, we refer to these four genera as the Rhynchium genera group in this study. The Rhynchium genera group has similar morphology, with a body size ranging from 8.9 mm to 15.1 mm, relatively stout, and slightly narrower first than the second gastral segment [ 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 ]. Because of the highly similar morphologies of these genera, it is sometimes challenging to tell them apart from each other, and therefore delineating their relationships is a significant exploration.…”