Ensina decisa Wollaston, 1858

Material examined. Madeira: Calheta (1 female); Encumeada (2 females, 4 males) ; Folhadal (1 female) ; Rabaçal (2 females, 1 male) ; Porto Santo: Morenos (1 female); Pico Branco (1 male); Serra de Fora (3 females, 6 males) . Desertas: Castanheira (6 females, 6 males) ; Doca (1 male) ; Ilhéu Chão (60 females, 126 males).

Remarks. One of the few representatives of its genus, E. decisa is endemic to Madeira and Canary archipelagos (Smit 2006). It is distributed throughout Madeira archipelago from dry habitats to preserved laurel forests. Ensina decisa attacks Hypochaeris glabra in Madeira (Smit 2006), but in the Canary Islands the host plants are unknown (Merz 1992). Therefore, E. decisa might have a wider range of host plants. This species was found for the first time in Desertas, where it was recorded in high abundance on Ilhéu Chão.