Small Skipper Butterfly (see below for Essex Skipper) Thymelicus sylvestris

Small Skipper Butterfly
Small Skipper Butterfly
The Small Skipper butterfly is slightly smaller than the Large Skipper. They are often found together as both like long grassland and meadows.
Small Skipper Butterfly
Small Skipper Butterfly
From the underside, the Small Skipper has a small buff triangle usually visible on the corner of its forewing. Its antenna tips are black on top and orange underneath.
Small Skipper Butterfly
Small Skipper Butterfly
Small Skipper Butterfly

Essex Skipper Butterfly Thymelicus lineola

Essex Skipper Butterfly
Essex Skipper Butterfly
Of similar size and appearance to the Small Skipper and often together, the Essex Skipper does not have the buff triangle and has wholly black tips to its antennae.
Essex Skipper Butterfly
Essex Skipper Butterfly
Small and Essex Skipper Butterflies
Small skipper (orange underside antenna tips) flying in to Essex skipper (black underside antenna tips) in the Totteridge Fields.