Spider venom peptides Ht1a and Gg1a are toxic to honeybee parasite Varroa destructor by topical application

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  Spider venom peptides Ht1a and Gg1a are toxic to honeybee parasite Varroa destructor by topical application Abstract Global food supply strongly depends on honeybee pollination services, which are threatened by insecticides and pests such as parasitic Varroa destructor mites. Chemical varroacides/acaricides are hampered by resistance development, necessitating the development of sustainable and environmentally friendly alternatives, with arthropod venom peptides being considered promising sources of acaricidal toxins. With only a few acaricidal venom peptides being reported, we performed a systematic topical screening of 50 arthropod venoms against V. destructor , with 78% of the venoms causing 100% mortality after 24 h. Deconvolution of the venoms from the Tasmanian cave spider Hickmania troglodytes and the Giant Japanese funnel-web spider Gigathele gigas led to identification of the varroacidal peptides Ht1a and Gg1a. Topical application of Ht1a and Gg1a reduced varroa mite ...

Lycosoides coarctata (Dufour, 1831) in Jordan (Araneae: Agelenidae), with updated list of the known records of spiders from Jordan

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Lycosoides coarctata (Dufour, 1831) in Jordan (Araneae: Agelenidae), with updated list of the known records of spiders from Jordan

Abstract 

Lycosoides coarctata (Dufour, 1831) of family Agelenidae is recorded from Jordan for the first time. Three adult male specimens and two juveniles of this species were collected in November 2011 inside a house in Amman, Jordan. This is the first record of family Agelenidae in Jordan too. Its illustrations and measurements are presented. An updated list of the known records of spiders from Jordan is presented. The list includes 18 families, 33 genera, and 39 species of spiders in Jordan.

El-Hennawy, H. K. (2025b). Lycosoides coarctata (Dufour, 1831) in Jordan (Araneae: Agelenidae), with updated list of the known records of spiders from Jordan. Serket 20(4): 456-462. NMBE: https://wsc.nmbe.ch/reference/18479