Research Article |
Corresponding author: Gexia Qiao ( qiaogx@ioz.ac.cn ) Academic editor: Elison Fabricio B. Lima
© 2022 Lihong Dang, Linpeng Zhao, Yanqiao Li, Gexia Qiao.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Dang L, Zhao L, Li Y, Qiao G (2022) The genus Apterygothrips Priesner (Thysanoptera, Phlaeothripinae, Haplothripini) from China, with one new species. ZooKeys 1112: 1-9. https://doi.org/10.3897/zookeys.1112.85902
|
The genus Apterygothrips Priesner is a group of mainly wingless species in the tribe Haplothripini. The genus is diagnosed here based on the three species known from China, including A. flavescens Dang & Qiao sp. nov. collected from bases of grass in Tibet. An illustrated identification key to the three species from China is provided and the CO1 barcode sequence is given for the new species.
Apterygothrips flavescens, CO1, Haplothripini, key, new species
Species of Apterygothrips Priesner in the tribe Haplothripini are distributed worldwide and almost always wingless. Although there are now 39 species listed in this genus (
At least eight species of Apterygothrips are listed from Asia (
The descriptions, photomicrograph images and drawings were produced from slide-mounted specimens with an Olympus BX53 and drawing tube. The abbreviations used for the pronotal setae are as follows: am – anteromarginal, aa – anteroangular, ml – midlateral, epim – epimeral, pa – posteroangular. The unit of measurement in this study is the micrometre. The genomic DNA of Apterygothrips flavescens Dang & Qiao sp. nov. was extracted from single specimens following the standard protocol of DNeasy kit (Qiagen, Hilden, Germany). The CO1 sequence was amplified using primers LCO1490 and HCO2198 (
All specimens studied here are deposited in the School of Bioscience and Engineering, Shaanxi University of Technology (SUT), Hanzhong, China, and in the National Zoological Museum of China (NZMC), Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
Apterygothrips Priesner, 1933: 153. Type species: Apterygothrips haloxyli Priesner, 1933.
Micropterous or apterous (rarely macropterous). Body uniformly brown or bicolored. Head longer than wide, eyes normal or small, ocelli small or absent, postocular setae well developed, pointed or capitate at apex; stylets about one third of head width apart, maxillary bridge present. Antennae eight-segmented, antennal segment III with one or two sense cones, IV with two or three. Pronotum usually smooth, with five pairs of major setae, sometimes am or (and) ml reduced, notopleural sutures complete; basantra present; mesopresternum boat-shaped or eroded medially; metathoracic sternopleural sutures absent. Fore tarsal tooth small or absent. Pelta trapezoidal or hemicircular; tergites II–VII with or without two pairs of weak, wing-retaining setae; tube shorter than head.
1 | Body bicolored, with pterothorax yellow | flavescens Dang & Qiao, sp. nov. |
– | Body uniformly brown | 2 |
2 | Major setae pointed at apex; antennal segment IV with 1+2 sense cones; fore tarsal tooth absent | brunneicornus Han |
– | Major setae capitate at apex, or at least epimeral setae expanded; antennal segment IV with 1+1 sense cones; fore tarsal tooth present | haloxyli Priesner |
Apterygothrips brunneicornus Han, 1991: 337.
This species was described by
Holotype. ♀ (SUT), China, Tibet, Lhasa City, Lhasa Nanshan Park, from base of grass, 03.viii.2019, L.H. Dang and L.P. Zhao. Paratypes. 1♀3♂ (SUT), same data as holotype.
Apterous, body bicolored, with pterothorax yellow (Figs
Holotype. Female aptera. Body bicolored (Fig.
Head. Head 1.6 times as long as wide (Figs
Thorax. Pronotum almost smooth, notopleural sutures complete (Fig.
Abdomen. Pelta smooth and hemicircular, with a pair of campaniform sensilla (Figs
Measurements (holotype female in microns). Body length 1580. Head length 175, width across eyes 110; eye length 50, postocular setae length 35. Antenna length 265, segments I–VIII length (width) 25(30), 35(25), 35(20), 35(25), 35(20), 30(20), 25(20) and 20(10), sensoria on segment III length 10. Pronotum length 130, width 155, length of pronotal setae: am 5, aa 15, ml 5, epim 30, pa 25. Pelta length 65, width 125; tergite IX posteromarginal setae S1–S3, 65, 80, 75; tube length 80, basal width 50, apical width 30; anal setae length 75.
Male aptera
. Very similar to female (Fig.
Measurements (paratype male in microns). Body length 1225. Head length 160, width across eyes 105; eye length 50, postocular setae length 30. Antenna length 250, segments I–VIII length (width): 25(25), 35(20), 30(20), 30(20), 30(20), 30(20), 25(20) and 20(10), sensoria on segment III length 10. Pronotum length 100, width 125, length of pronotal setae: am 5, aa 15, ml 5, epim 20, pa 10. Pelta length 45, width 95; tergite IX posteromarginal setae S1–S3, 70, 20, 85; tube length 75, basal width 50, apical width 25; anal setae length 75.
It includes 1536 bp with the GenBank accession number ON350971.
The Latin name “flavescens” refers to the yellow pterothorax of the new species.
The new species, A. flavescens Dang & Qiao sp. nov., is similar to A. bicolor Johansen and A. dempax Bhatti & Ananthakrishnan in having a bicolored body. But it differs in having head and abdominal tergites II–X brown, pterothorax and pelta pale yellow, prothorax brownish yellow and intermediate in color between head and pterothorax, and major setae pointed at apex. In A. bicolor from Mexico, the head, prothorax, mesothorax and apical two thirds of the tube are brown, the metathorax, abdominal segments I–IX and the basal third of the tube are pale yellow, and the major setae are expanded at the apex (from original description,
Apterygothrips haloxyli Priesner, 1933: 1.
This species was described by
The authors are grateful to Laurence Mound (CSIRO, Australia) for his critical comments and English revision. This work was supported by the National Natural Sciences Foundation of China (No. 31702042), the Key Project of Natural Science Basic Research program of Shaanxi Province (2019JZ-34), the Young Talent Fund of the University Association for Science and Technology of Shaanxi, China (20180209) and the Second Tibetan Plateau Scientific Expedition and Research (STEP) program [Grant No. 2019QZKK0501].