Small skipper Small skipper The small skipper ("Thymelicus sylvestris") is a butterfly of the family Hesperiidae. It has a rusty orange colour to the wings, upper body and the tips of the antennae. The body is silvery white below and it has a wingspan of 25–30 mm. This butterfly is very similar in appearance to the Essex skipper ("Thymelicus lineola"). In the small skipper, the undersides of the tips of the antennae are yellow orange, whereas they are black in the Essex skipper. The black area on the lower edge of the upper wings also differs. Like the other orange grass skippers
Lulworth Formation replaced by micritic limestone. The Warbarrow Tout Member is 17 to 39 m thick and consists of limestone at the base and micrite and mudstone for the rest of the sequence, this member is the primary source of the vertebrate fossils within the formation. Lulworth Formation The Lulworth Formation is a geologic formation in England. It dates from the late Tithonian to the mid Berriasian. It is a subunit of the Purbeck Group. It consists of three members, which are in ascending order, the Mupe Member, the Ridgway Member, and the Warbarrow Tout Member. The Mupe Member is typically 11