Expression and function of two olfactory-related genes in response to methyl salicylate in the wolf spider Pardosa pseudoannulata (Araneae: Lycosidae)

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  Expression and function of two olfactory-related genes in response to methyl salicylate in the wolf spider Pardosa pseudoannulata (Araneae: Lycosidae) The wolf spider ( Pardosa pseudoannulata ) is common in rice fields. Olfaction is crucial for perceiving chemical information, and our previous research indicated that methyl salicylate (MeSA), a common herbivore-induced plant volatile (HIPV), significantly attracts P. pseudoannulata . However, few studies have examined the functions of spiders' olfactory-related genes and their interactions with HIPVs. This study aimed to identify olfactory-related genes associated with MeSA in P. pseudoannulata . Transcriptome analysis revealed four differentially expressed olfactory-related genes in response to MeSA in P. pseudoannulata . Subsequent molecular docking analysis indicated that MeSA had a strong predicted binding affinity with proteins of two key olfactory-related genes ( PpseNPC2-7 and PpseSNMP2 ). These two genes were cloned, and...

Rhysida longipes (Scolopendromorpha: Scolopendridae), an unusual prey of Physocyclus globosus (Araneae: Pholcidae)

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Rhysida longipes (Scolopendromorpha: Scolopendridae), an unusual prey of Physocyclus globosus (Araneae: Pholcidae)

Abstract

A very young centipede Rhysida longipes (Newport, 1845), approximately 12 mm in total length, is recorded as prey of the synanthropic common spider Physocyclus globosus (Tackzanowski, 1874). The episode was observed into an urban residence in San Antonio de los Baños, Artemisa Province, Cuba. In Cuba this is the first time that a spider is recorded preying upon a centipede.

Acknowledgment: I extend my sincere gratitude to Luis F. De Armas for kindly providing me with the complete paper. ¡Enhorabuena, Luis!

ARMAS, L. F. DE 2025. Rhysida longipes (Scolopendromorpha: Scolopendridae), an unusual prey of Physocyclus globosus (Araneae: Pholcidae). Boletín de la Sociedad Entomológica Aragonesa, 77: 86–87.