Skipper #3
Borbo fatuellus (?)
Observed on the rim of Menangai Crater, Kenya, March 2013. Notice the very long proboscis extended down into the floral tube to extract sugary nectar.
Skipper butterflies as a group are mostly quite easy to recognize. Like most butterflies they are active mostly by day (diurnal) and have distinct clubs at the tips of the antennae. Looking at the antennae clubs more closely, there is a short, partly hooked appendage. Skippers have this hook, but no other butterfly families do.
Identification to a specific species is difficult, however, because there are many, many species. There are some very similar species that require microscopic examination of the genitalia to be sure of specific identification.