Latest Articles from ZooKeys Latest 6 Articles from ZooKeys https://zookeys.pensoft.net/ Fri, 29 Mar 2024 00:45:43 +0200 Pensoft FeedCreator https://zookeys.pensoft.net/i/logo.jpg Latest Articles from ZooKeys https://zookeys.pensoft.net/ A new genus and three newly recorded species of Encyrtidae (Hymenoptera, Chalcidoidea) from China https://zookeys.pensoft.net/article/116791/ ZooKeys 1193: 49-61

DOI: 10.3897/zookeys.1193.116791

Authors: Ning Kang, Hongying Hu, Shuhan Guo, Shungang Luo

Abstract: A new genus and species of Encyrtidae (Hymenoptera: Chalcidoidea), Apteronotus Kang, Hu & Luo, gen. nov. (type species A. indigus Kang, Hu & Luo, sp. nov.), associated with insects inhabiting Oxytropis spp., and three newly recorded species for China, Copidosoma clavatum, Ericydnus aeneus and Tetracnemus kozlovi, are described from the Altun Mountain Nature Reserve, Xinjiang. Detailed illustrations of all species were included to support the identification and further study.

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Research Article Wed, 28 Feb 2024 16:55:40 +0200
A taxonomic study of Psyllaephagus Ashmead (Hymenoptera, Encyrtidae) from China https://zookeys.pensoft.net/article/109476/ ZooKeys 1184: 327-359

DOI: 10.3897/zookeys.1184.109476

Authors: Boyu Zou, Hongying Hu, Lanwei Zhang, Yanzhou Zhang

Abstract: Fifteen species of Psyllaephagus from China are studied. Three species, P. clavus Zou & Zhang, sp. nov., P. obliquus Zou & Zhang, sp. nov., and P. tangae Zou & Zhang, sp. nov., are described as new to science. A diagnosis or a description/redescription, figures of the characters, as well as the known distribution and hosts of each species are provided. A dichotomous key is also given to facilitate the identification of species.

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Research Article Thu, 23 Nov 2023 17:37:21 +0200
Description of three new species and new distributional data for three species of Homalotylus (Hymenoptera, Encyrtidae) from China https://zookeys.pensoft.net/article/113292/ ZooKeys 1184: 273-289

DOI: 10.3897/zookeys.1184.113292

Authors: Guohao Zu, Hao Xue, Haiyang Wang, Wenquan Zhen, Dawei Huang

Abstract: Homalotylus tianjinensis Zu, sp. nov., H. bicolor Zu, sp. nov. and H. guangxiensis Zu, sp. nov. are described as new to science; H. agarwali Anis & Hayat, 1998, H. hemipterinus (De Stefani, 1898) and H. varicolorus Krishnachaitanya & Manickavasagam, 2016 are newly recorded from China. A key to Chinese species based on females is also presented.

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Research Article Tue, 21 Nov 2023 10:15:41 +0200
Novel gene rearrangement pattern in mitochondrial genome of Ooencyrtus plautus Huang & Noyes, 1994: new gene order in Encyrtidae (Hymenoptera, Chalcidoidea) https://zookeys.pensoft.net/article/83811/ ZooKeys 1124: 1-21

DOI: 10.3897/zookeys.1124.83811

Authors: Zhi-Ping Xing, Xin Liang, Xu Wang, Hao-Yuan Hu, Yi-Xin Huang

Abstract: Studies of mitochondrial genomes have a wide range of applications in phylogeny, population genetics, and evolutionary biology. In this study, we sequenced and analyzed the mitochondrial genome of Ooencyrtus plautus Huang & Noyes, 1994 (Hymenoptera, Encyrtidae). The nearly complete mitogenome of O. plautus was 15,730 bp in size, including 13 PCGs (protein-coding genes), 22 tRNAs, 2 rRNAs, and a nearly complete control region. The nucleotide composition was significantly biased toward adenine and thymine, with an A + T content of 84.6%. We used the reference sequence of Chouioia cunea and calculated the Ka/Ks ratio for each set of PCGs. The highest value of the Ka/Ks ratio within 13 PCGs was found in nad2 with 1.1, suggesting that they were subjected to positive selection. This phenomenon was first discovered in Encyrtidae. Compared with other encyrtid mitogenomes, a translocation of trnW was found in O. plautus, which was the first of its kind to be reported in Encyrtidae. Comparing with ancestral arrangement pattern, wasps reflect extensive gene rearrangements. Although these insects have a high frequency of gene rearrangement, species from the same family and genus tend to have similar gene sequences. As the number of sequenced mitochondrial genomes in Chalcidoidea increases, we summarize some of the rules of gene rearrangement in Chalcidoidea, that is four gene clusters with frequent gene rearrangements. Ten mitogenomes were included to reconstruct the phylogenetic trees of Encyrtidae based on both 13 PCGs (nucleotides of protein coding genes) and AA matrix (amino acids of protein coding genes) using the maximum likelihood and Bayesian inference methods. The phylogenetic tree reconstructed by Bayesian inference based on AA data set showed that Aenasius arizonensis and Metaphycus eriococci formed a clade representing Tetracneminae. The remaining six species formed a monophyletic clade representing Encyrtinae. In Encyrtinae, Encyrtus forms a monophyletic clade as a sister group to the clade formed by O. plautus and Diaphorencyrtus aligarhensis. Encyrtus sasakii and Encyrtus rhodooccisiae were most closely related species in this monophyletic clade. In addition, gene rearrangements can provide a valuable information for molecular phylogenetic reconstruction. These results enhance our understanding of phylogenetic relationships among Encyrtidae.

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Research Article Mon, 10 Oct 2022 10:29:13 +0300
A new species of Cheiloneurus Westwood (Hymenoptera, Encyrtidae) as a hyperparasitoid of the invasive cotton mealybug, Phenacoccus solenopsis Tinsley, in China https://zookeys.pensoft.net/article/55528/ ZooKeys 974: 23-29

DOI: 10.3897/zookeys.974.55528

Authors: Zhuomiao Li, Tingting Yao, Zhihong Xu, Ling Meng, Baoping Li

Abstract: A new species, Cheiloneurus nankingensis sp. nov., from Eastern China is described. It is similar to C. arabiacus Hayat but distinct from it in a number of morphological characters. It is a hyperparasitoid with the encyrtid wasp Aenasius arizonensis Girault, 1915 as the primary host and the cotton mealybug Phenacoccus solenopsis Tinsley, 1898 (Hemiptera: Pseudococcidae) as the secondary host. A key to all seven species of Cheiloneurus known from China is presented.

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Research Article Wed, 7 Oct 2020 14:38:19 +0300
A geographic distribution database of the Neotropical cassava whitefly complex (Hemiptera, Aleyrodidae) and their associated parasitoids and hyperparasitoids (Hymenoptera) https://zookeys.pensoft.net/article/6193/ ZooKeys 545: 75-87

DOI: 10.3897/zookeys.545.6193

Authors: Aymer Andrés Vásquez-Ordóñez, Nicolas А. Hazzi, David Escobar-Prieto, Dario Paz-Jojoa, Soroush Parsa

Abstract: Whiteflies (Hemiptera, Aleyrodidae) are represented by more than 1,500 herbivorous species around the world. Some of them are notorious pests of cassava (Manihot esculenta), a primary food crop in the tropics. Particularly destructive is a complex of Neotropical cassava whiteflies whose distribution remains restricted to their native range. Despite their importance, neither their distribution, nor that of their associated parasitoids, is well documented. This paper therefore reports observational and specimen-based occurrence records of Neotropical cassava whiteflies and their associated parasitoids and hyperparasitoids. The dataset consists of 1,311 distribution records documented by the International Center for Tropical Agriculture (CIAT) between 1975 and 2012. The specimens are held at CIAT’s Arthropod Reference Collection (CIATARC, Cali, Colombia). Eleven species of whiteflies, 14 species of parasitoids and one species of hyperparasitoids are reported. Approximately 66% of the whitefly records belong to Aleurotrachelus socialis and 16% to Bemisia tuberculata. The parasitoids with most records are Encarsia hispida, Amitus macgowni and E. bellottii for A. socialis; and E. sophia for B. tuberculata. The complete dataset is available in Darwin Core Archive format via the Global Biodiversity Information Facility (GBIF).

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Data Paper Mon, 14 Dec 2015 04:23:49 +0200