Eupithecia haworthiata Doubleday, 1856


Eupithecia haworthiata: Adult (e.l. Illerbeuren near Memmingen 2011) [S] Eupithecia haworthiata: Adult (e.l. Illerbeuren near Memmingen 2011) [S] Eupithecia haworthiata: Adult (e.l. Illerbeuren near Memmingen 2011) [S] Eupithecia haworthiata: Drilling hole with excrements of a young larva (Illerbeuren near Memmingen, mid-July 2011) [N] Eupithecia haworthiata: Young larva in opened flower bud [M] Eupithecia haworthiata: Abandoned flower bud  (Illerbeuren near Memmingen, mid-July 2011) [M] Eupithecia haworthiata: Larva (Illerbeuren near Memmingen, mid-July 2011) [M] Eupithecia haworthiata: Larva (Illerbeuren near Memmingen, mid-July 2011) [M] Eupithecia haworthiata: Larva (Illerbeuren near Memmingen, mid-July 2011) [M] Eupithecia haworthiata: Larva (Illerbeuren near Memmingen, mid-July 2011) [S] Eupithecia haworthiata: Larva (Illerbeuren near Memmingen, mid-July 2011) [S] Eupithecia haworthiata: Larva prior to pupation [S] Eupithecia haworthiata: Pupa [S] Eupithecia haworthiata: Larval habitat at forest margin with Clematis vitalba (Illerbeuren near Memmingen, July 2011) [N]

Host plants:
The caterpillars live on flowers of Clematis spp (especially Clematis vitalba).

Habitat:
Eupithecia haworthiata inhabits lowland forests, forest edges and thickets with Clematis. I found larvae also in a garden on a single Clematis vitalba (Illerbeuren near Memmingen, a few 100m away from natural sites).

Life cycle:
The pupa hibernates. The moths fly mainly from mid-May to late July in a single generation. Very rarely single adults of a very partial second generation are found in August/September. The caterpillar lives mainly from June to August. The young caterpillar burrows into flower buds and eats them from the inside, while the mature caterpillars eat up more flowers and buds from the outside.

Remarks:
Eupithecia haworthiata occurs in Europe and Western Asia. It lacks in Central and Northern Scandinavia.



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