<p><strong>A new <em>Eumerus</em> hoverfly (Diptera: Syrphidae) from Namibia and South Africa, with notes on similar species</strong></p>
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چکیده
منابع مشابه
Notes on Citrogramma Vockeroth and Eosphaerophoria Frey (Diptera: Syrphidae).
New taxonomic and distributional data on the genera Citrogramma Vockeroth, 1969 and Eosphaerophoria Frey, 1946 are presented, including descriptions of the females of Citrogramma asombrosum Mengual, 2012, Citrogramma pennardsi Mengual, 2012 and Eosphaerophoria dentiscutellata (Keiser, 1958). Modifications to published identification keys to accommodate the new information are provided for both ...
متن کاملEffects of chronic exposure to thiamethoxam on larvae of the hoverfly Eristalis tenax (Diptera, Syrphidae)
There is widespread concern over the use of neonicotinoid pesticides in the agro-ecosystem, due in part to their high water solubility which can lead to widespread contamination of non-target areas including standing surface water. Most studies investigating the negative fitness consequences of neonicotinoids have focused on bees, with little research on the impact on other non-target insects. ...
متن کاملRearing and observation of immature stages of the hoverfly Microdon katsurai (Diptera, Syrphidae)
BACKGROUND The hoverfly Microdon (Chymophila) katsurai Maruyama et Hironaga 2004 was speculated to be a myrmecophilous species associated with the ant Polyrhachis lamellidens based on observations of adults near the ant nest. However, there have been no reports regarding the observation of immature stages of this species in association with P. lamellidens. NEW INFORMATION For the first time, ...
متن کاملNew species of Calamoncosis Enderlein (Diptera: Chloropidae) from South Africa.
Three new and atypical species of Afrotropical Calamoncosis are described: Calamoncosis agricola sp. n. (type locality- South Africa: 15 km E Klaserie); Calamoncosis flavida sp. n. (type locality-South Africa: Roodewal); and Calamoncosis unicornis sp. n. (type locality-South Africa: 15 km E Klaserie). Calamoncosis unicornis exhibits extreme modification and sexual dimorphism in the antenna; in ...
متن کاملThe behaviour of hoverfly larvae (Diptera, Syrphidae) lessens the effects of floral subsidy in agricultural landscapes
20 Modern agricultural landscapes favour crop pests: herbivores benefit from resource 21 concentration and/or the absence of natural enemies in large areas of intensively farmed fields 22 interspersed by small fragments of natural or non-crop habitats. 23 Conservation biological control (CBC) aims at increasing the functional diversity of 24 agricultural landscapes to make them more hospitable ...
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ژورنال
عنوان ژورنال: Zootaxa
سال: 2020
ISSN: 1175-5334,1175-5326
DOI: 10.11646/zootaxa.4890.4.3