Agrotis rutae Rebel, 1939


Agrotis rutae: Male (e.l. Madeira 2013) [S] Agrotis rutae: Male (e.l. Madeira 2013) [S] Agrotis rutae: Male (e.l. Madeira 2013) [S] Agrotis rutae: Male (e.l. Madeira 2013) [S] Agrotis rutae: Half-grown larva (Madeira, Encumeada, 1500m asl, March 2013) [M] Agrotis rutae: Half-grown larva (Madeira, Encumeada, 1500m asl, March 2013) [M] Agrotis rutae: Half-grown larva (Madeira, Encumeada, 1500m asl, March 2013) [M] Agrotis rutae: Half-grown larva (Madeira, Encumeada, 1500m asl, March 2013) [M] Agrotis rutae: Half-grown larva (Madeira, Encumeada, 1500m asl, March 2013) [M] Agrotis rutae: Half-grown larva (Madeira, Encumeada, 1500m asl, March 2013) [M] Agrotis rutae: Half-grown larva (e.l. Madeira 2013) [S] Agrotis rutae: Half-grown larva (e.l. Madeira 2013) [S] Agrotis rutae: Half-grown larva (e.l. Madeira 2013) [S] Agrotis rutae: Larva (e.l. Madeira 2013) [S] Agrotis rutae: Larva (e.l. Madeira 2013) [S] Agrotis rutae: Larva (e.l. Madeira 2013) [S] Agrotis rutae: Larva (e.l. Madeira 2013) [S] Agrotis rutae: Pupa (e.l. Madeira 2013) [S] Agrotis rutae: Larval habitat in Madeira (Encumeada, 1500m asl, March 2013). The larvae had their daytime hideaway in such grass tussocks. [N] Agrotis rutae: Larval habitat in Madeira (Encumeada, 1500m asl, March 2013). I observed syntopical larvae of Noctua teixeirai. [N] Agrotis rutae: Larval habitat in Madeira (Encumeada, 1500m asl, March 2013). I observed syntopical larvae of Noctua teixeirai. [N] Agrotis rutae: Habitat in the mountains of Madeira (March 2013) [N]

Host plants:
The larva feeds polyphagous on grasses and herbs, perhaps also on low growing parts of some shrubs.

Habitat:
Agrotis rutae develops at wet to humid, partially shady and moss-reach rocks and rocky slopes preferably in higher altitudes of the island. I observed larvae in about 1500m asl above the Boca da Encumeada.

Life cycle:
The larvae seem to develop at least most often in winter and spring. They often rest in grass tussocks at the rocks during the day which are sometimes the only available hideaways. Pupation takes place in damp soil. The moths are on the wing between May and July. The exact phenology should be further examined in the field. There may be further generations as data in literature suggests.

Remarks:
Agrotis rutae is endemic to Madeira (Portugal).



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