A new species of crevice weaver spider, *Pikelinia floydmuraria*, has been identified in Colombia. This discovery expands scientific understanding of the *Pikelinia* genus. The spider's name honors the band Pink Floyd and refers to its habitat on building walls, using the Latin word "muraria" for wall.
Measuring only three to four millimeters, *P. floydmuraria* is a significant predator in urban environments. It primarily preys on Hymenoptera, such as ants, Diptera, including flies and mosquitoes, and Coleoptera, or beetles. Observations show these spiders capturing ants up to six times larger than their own body size.
These spiders strategically build their webs near artificial light sources. This method allows them to efficiently capture phototactic, or light-attracted, insects. This hunting behavior helps control common urban pests like mosquitoes and houseflies.
The research also provided a detailed description of the female internal genitalia of *Pikelinia fasciata*, a related species from the Galápagos Islands. Strong similarities between the Galápagos spider and the new Colombian species, particularly in male palpal structures, suggest a close evolutionary relationship. The vast Pacific Ocean separates their habitats, raising questions about common ancestry versus environmental adaptation.
*P. floydmuraria* is only the second known species of the *Pikelinia* genus recorded in Colombia. Further molecular and deoxyribonucleic acid (DNA) studies are necessary. These studies will help clarify its evolutionary history, geographic origins, and full impact as a natural pest controller.
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