TRIPHÆNA PRONUBA.
(Common Yellow Underwing.)
This is a common moth in England and Europe, but is rather a scarce species in Teneriffe. It expands a little more than two inches. The fore-wings are dark brown, having a few irregular markings of a lighter shade. The hind-wings are bright yellow, with a dark brown marginal band on the lower edge. The body is a somewhat lighter brown, and the antennæ are long and fine. The caterpillar is brown, and it feeds on a variety of low-growing plants in the barrancos, and may also be found on the potato. It commences to appear in the early spring.