Description of three new species of Ooencyrtus (Hymenoptera: Encyrtidae) from China

Zhang, Xu; Zhang, Yanzhou; Wang, Ying; Chen, Fuqiang; Yu, Fang; Zhou, Qianxiong

doi:10.11646/zootaxa.3790.3.4

Cited by 3 publications

(4 citation statements)

References 15 publications

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“…Furthermore, identification of members of this species-rich genus is often difficult, and many mistakes were made in the past (Prinsloo 1987). One also needs to consider that many new Ooencyrtus species are constantly being recognized (for recent examples see Ebrahimi et al 2015;Hayat 2014;Zhang et al 2014), and it is likely that many others, possibly cryptic ones, still remain unidentified. Therefore, any record should be considered with care.…”

Section: Discussionmentioning

confidence: 99%

Spatial distribution and niche partitioning in the Ooencyrtus spp. complex parasitizing the eggs of Stenozygum coloratum

et al. 2015

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The way in which species coexist is an important ecological question. Often, several parasitoid species may share a common host species. Five species of Ooencyrtus Ashmead (Hymenoptera: Encyrtidae) co-inhabit the egg clusters of Stenozygum coloratum Klug (Hemiptera: Pentatomidae), in the East Mediterranean region. Their relative abundance and spatial and seasonal occurrence were investigated. Parasitism and parasitoid male ratios gradually increased to about 50 and 26.8 %, respectively, from May to October. O. telenomicida Vassiliev was dominant in Mediterranean climatic regions and absent from arid areas, O. fecundus Ferrière and Voegelè dominated semi-arid areas, and O. near nigerrimus was the commonest in hot-arid areas. O. near fecundus occurred everywhere but was most abundant in the more extreme weather conditions. O. pityocampae Mercet was uncommon in most areas and absent from arid ones. O. telenomicida abundance was positively, and that of O. fecundus negatively, correlated with annual rainfall. O. near fecundus and O. near nigerrimus abundance was positively correlated with temperature extremes. The results display a clear picture for climatic based spatial niche partitioning, although there is evidence that interspecific competition also plays a significant role in the frequency of occurrence of the studied Ooencyrtus spp.

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Section: Discussionmentioning

confidence: 99%

Spatial distribution and niche partitioning in the Ooencyrtus spp. complex parasitizing the eggs of Stenozygum coloratum

et al. 2015

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“…1 YZZ-2014 (accession KF850145.1), a sequence derived from a paratype of O . protohermesis Zhang & Zhang [ 35 ]. The p -distance between this species and O .…”

Section: Resultsmentioning

confidence: 99%

“…Neither the unidentified species of Ooencyrtus nor O. plautus or O. nezarae (the closest matches based on COI) bear any resemblance to O. pitosina. The most similar species based on 28S, O. protohermesis, has completely yellow legs, a yellow acropleuron and possibly a yellow prosternum [35] but otherwise they are dissimilar. The fact that we found three haplotypes out of five COI sequences indicates that O. pitosina might be a long-established species in American Samoa, though a recent human-mediated introduction cannot be excluded.…”

Section: Discussionmentioning

confidence: 99%

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Ooencyrtus pitosina (Hymenoptera: Encyrtidae)–A natural enemy of Samoan swallowtail butterfly Papilio godeffroyi (Lepidoptera: Papilionidae)

et al. 2023

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A new species of encyrtid wasp, Ooencyrtus pitosina Polaszek, Noyes & Fusu sp. n., (Hymenoptera: Encyrtidae: Encyrtinae) is described as a gregarious parasitoid in the eggs of the endemic Samoan swallowtail butterfly Papilio godeffroyi (Lepidoptera: Papilionidae) in the Samoan archipelago. It is described here because it is an important natural enemy of this butterfly, and to facilitate identification for future work with this parasitoid and its host.

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Functions of Egg-Coating Substances Secreted by Female Accessory Glands in Alderflies, Fishflies and Dobsonflies (Megaloptera)

Liu

Hayashi

2022

Insects

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Eggs of insects are immobile and must endure harsh environmental conditions (e.g., low temperatures in winter and aridity in summer) and avoid attack by egg-eating predators, egg parasites, and microbes. Females of Megaloptera lay their eggs as a single- or multi-layered egg mass, which is coated with chemical substances secreted from the female reproductive accessory glands. In this study, we observed the egg masses laid by females of two species of Sialidae (alderflies), nine species of Chauliodinae (fishflies), and 23 species of Corydalinae (dobsonflies) belonging to the order Megaloptera and examined the functions of accessory gland substances coating the laid eggs. The female accessory gland is a single tube in alderflies and fishflies but a paired pouch in dobsonflies. The amount and color of the gland substances differ greatly among species. These substances prevent egg desiccation, inhibit egg feeding by ladybird beetles, and repel ants. Most characteristics of the egg mass structures and the effectiveness of accessory gland substances reflect the phylogeny of Megaloptera, although some differ among closely related taxa.

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Description of three new species of Ooencyrtus (Hymenoptera: Encyrtidae) from China

Cited by 3 publications

References 15 publications

Spatial distribution and niche partitioning in the Ooencyrtus spp. complex parasitizing the eggs of Stenozygum coloratum

Spatial distribution and niche partitioning in the Ooencyrtus spp. complex parasitizing the eggs of Stenozygum coloratum

Ooencyrtus pitosina (Hymenoptera: Encyrtidae)–A natural enemy of Samoan swallowtail butterfly Papilio godeffroyi (Lepidoptera: Papilionidae)

Functions of Egg-Coating Substances Secreted by Female Accessory Glands in Alderflies, Fishflies and Dobsonflies (Megaloptera)

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