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Summary A description and illustrations are provided for the theridiid spider Rugathodes sexpunctatus (Emerton, 1882), along with discussion of its current distribution, possible means of introduction, habitat, and ecology.

Summary A complete, revised check list of British spiders is presented, with explanations for all changes made since the previous list provided by Merrett & Murphy (2000). The following nine species are added to the list: Theridion hannoniae, Rugathodes sexpunctatus, Diplocephalus graecus, Mermessus trilobatus, Pardosa lugubris, Agroeca dentigera, Clubiona frutetorum, Sitticus distinguendus and Macaroeris nidicolens. The following three species are deleted: Theridion sp., Lepthyphantes beckeri and Gibbaranea bituberculata. The following previously proposed synonym is accepted: Micaria romana = M. albovittata. Generic changes affect Anelosimus aulicus (transferred to Kochiura), Achaearanea veruculata (transferred to Cryptachaea), Theridion sisyphium and T. impressum (transferred to Phylloneta), Theridion tinctum (transferred to Platnickina), Baryphyma duffeyi (transferred to Praestigia), Trichopterna thorelli (transferred to Trichopternoides), Carorita paludosa (transferred to Karita), Lepthyphantes whympe...

A description and illustration are provided for Pelecopsis susannae (Simon, 1915), a spider new to Britain.

In July 2007 a male of Theridion hannoniae Denis, 1944 was taken from among a pile of stones at Mynydd Bach, Glamorgan, as described by Warmingham (2008). After the specimen had been identified later that year, further visits were made to the site during 2008 to search for more specimens. An adult female and several juveniles were found on 30 April (Warmingham, 2008), and four adult females and four males were collected on 23 June. All the specimens came from stones derived from a discarded gabion at the side of a track. Both sexes are described and figured here from the British material. All measurements are in mm.

Summary Both sexes of Sitticus distinguendus (Simon, 1868) are described from British material, and notes on its habitat, distribution and phenology are given.

Funder: Royal Entomological Society; Id: http://dx.doi.org/10.13039/100013849, Funder: Rural & Environment Science & Analytical Services Division of the Scottish Government, Funder: Alexander von Humboldt Foundation; Id: http://dx.doi.org/10.13039/100005156, Funder: Department of Agriculture, Environment & Rural Affairs, Funder: Center for Environmental and Sustainability Research, 1. Entomology is key to understanding terrestrial and freshwater ecosystems at a time of unprecedented anthropogenic environmental change, and offers substantial untapped potential to benefit humanity in a variety of ways, from improving agricultural practices to managing vector-borne diseases and inspiring technological advances. 2. We identified high priority challenges for entomology using an inclusive, open, and democratic four-stage prioritisation approach, conducted among the membership and affiliates (hereafter ‘members’) of the UK-based Royal Entomological Society (RES). 3. A list of 710 challenges was gathered from 189 RES members. Thematic analysis was used to group suggestions, followed by an online vote to determine initial priorities, which were subsequently ranked during an online workshop involving 37 participants. 4. The outcome was a set of 61 priority challenges within four groupings of related themes: (i) ‘Fundamental Research’ (themes: Taxonomy, ‘Blue Skies’ [defined as research ideas without immediate practical application], Methods and Techniques); (ii) ‘Anthropogenic Impacts and Conservation’ (themes: Anthropogenic Impacts, Conservation Options); (iii) ‘Uses, Ecosystem Services and Disservices’ (themes: Ecosystem Benefits, Technology and Resources [use of insects as a resource, or as inspiration], Pests); (iv) ‘Collaboration, Engagement and Training’ (themes: Knowledge Access, Training and Collaboration, Societal Engagement). 5. Priority challenges encompass research questions, funding objectives, new technologies, and priorities for outreach and engagement. Examples include training taxonomists, establishing a global network of insect monitoring sites, understanding the extent of insect declines, exploring roles of cultivated insects in food supply chains, and connecting professional with amateur entomologists. Responses to different challenges could be led by amateur and professional entomologists, at all career stages. 6. Overall, the challenges provide a diverse array of options to inspire and initiate entomological activities, and reveal the potential of entomology to contribute to addressing global challenges related to human health and well-being, and environmental change.