Michael D. Kern / Columbian Giant Redleg Tarantula, (Megaphobema robustum) ventral view, captive from South America

Michael D. Kern / Costa Rican Redleg Tarantula (Megaphobema mesomelas), captive from South America

Nigel Cattlin / Redshank (Persicaria maculosa) growing as arable weed. England, UK. September.

Nigel Cattlin / Redshank (Persicaria maculosa) growing as arable weed. England, UK. September.

Nigel Cattlin / Redshank (Persicaria maculosa), an annual arable weed. Berkshire, England, UK. August.

Melvin Grey / Orange-kneed tarantula (Megaphobema mesomelas) adult female, Atlantic Slope Cloud Forest, Costa Rica.

Nick Upton / Redshank / Spotted ladysthumb (Persicaria maculosa) flowering on riverbank, Wiltshire, UK, July.

Nick Upton / Redshank / Spotted ladysthumb (Persicaria maculosa) flowering on riverbank, Wiltshire, UK, July.

Nick Upton / Spotted ladysthumb (Persicaria maculata) flowering in damp grassland, Cornwall, UK, September.

Michael D. Kern / Columbian Giant Redleg Tarantula, (Megaphobema robustum), captive from Colombia and Brazil

Philippe Clement / Orange kneed Tarantula spider {Brachypelma mesomelas} Monteverde NP, Costa Rica.

Alex Hyde / Costa Rican orange-kneed tarantula (Megaphobema mesomelas) resting on moss on forest floor, upper Caribbean slope cloud forest, Costa Rica. April.