Pachycnemia hippocastanaria (Hübner, [1799])
![Pachycnemia hippocastanaria: Female (e.l. SW-Germany, central Black Forest, Hornberg, larva in late March 2020) [S]](bilder1/geometridae/hippocastanaria_im2020.jpg "Pachycnemia hippocastanaria: Female (e.l. SW-Germany, central Black Forest, Hornberg, larva in late March 2020) [S]")
![Pachycnemia hippocastanaria: Female (e.l. SW-Germany, central Black Forest, Hornberg, larva in late March 2020) [S]](bilder1/geometridae/hippocastanaria_3im2020.jpg "Pachycnemia hippocastanaria: Female (e.l. SW-Germany, central Black Forest, Hornberg, larva in late March 2020) [S]")
![Pachycnemia hippocastanaria: Female (e.l. SW-Germany, central Black Forest, Hornberg, larva in late March 2020) [S]](bilder1/geometridae/hippocastanaria_4im2020.jpg "Pachycnemia hippocastanaria: Female (e.l. SW-Germany, central Black Forest, Hornberg, larva in late March 2020) [S]")
![Pachycnemia hippocastanaria: Female (e.l. SW-Germany, central Black Forest, Hornberg, larva in late March 2020) [S]](bilder1/geometridae/hippocastanaria_2im2020.jpg "Pachycnemia hippocastanaria: Female (e.l. SW-Germany, central Black Forest, Hornberg, larva in late March 2020) [S]")
![Pachycnemia hippocastanaria: Female after eclosion (e.l. SW-Germany, central Black Forest, Hornberg, larva in late March 2020) [S]](bilder1/geometridae/hippocastanaria_5im2020.jpg "Pachycnemia hippocastanaria: Female after eclosion (e.l. SW-Germany, central Black Forest, Hornberg, larva in late March 2020) [S]")
![Pachycnemia hippocastanaria: Eggs (e.l. SW-Germany, central Black Forest, Hornberg, larva in late March 2020) [S]](bilder1/geometridae/hippocastanaria_6im2020.jpg "Pachycnemia hippocastanaria: Eggs (e.l. SW-Germany, central Black Forest, Hornberg, larva in late March 2020) [S]")
![Pachycnemia hippocastanaria: Eggs (e.l. SW-Germany, central Black Forest, Hornberg, larva in late March 2020) [S]](bilder1/geometridae/hippocastanaria_7im2020.jpg "Pachycnemia hippocastanaria: Eggs (e.l. SW-Germany, central Black Forest, Hornberg, larva in late March 2020) [S]")
![Pachycnemia hippocastanaria: Half-grown larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [M]](bilder1/geometridae/hippocastanaria_8im2020.jpg "Pachycnemia hippocastanaria: Half-grown larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [M]")
![Pachycnemia hippocastanaria: Half-grown larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [M]](bilder1/geometridae/hippocastanaria_9im2020.jpg "Pachycnemia hippocastanaria: Half-grown larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [M]")
![Pachycnemia hippocastanaria: Half-grown larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [M]](bilder1/geometridae/hippocastanaria_10im2020.jpg "Pachycnemia hippocastanaria: Half-grown larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [M]")
![Pachycnemia hippocastanaria: Half-grown larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [M]](bilder1/geometridae/hippocastanaria_11im2020.jpg "Pachycnemia hippocastanaria: Half-grown larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [M]")
![Pachycnemia hippocastanaria: Larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [S]](bilder1/geometridae/hippocastanaria_12im2020.jpg "Pachycnemia hippocastanaria: Larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [S]")
![Pachycnemia hippocastanaria: Larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [M]](bilder1/geometridae/hippocastanaria_13im2020.jpg "Pachycnemia hippocastanaria: Larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [M]")
![Pachycnemia hippocastanaria: Larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [M]](bilder1/geometridae/hippocastanaria_14im2020.jpg "Pachycnemia hippocastanaria: Larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [M]")
![Pachycnemia hippocastanaria: Larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [M]](bilder1/geometridae/hippocastanaria_15im2020.jpg "Pachycnemia hippocastanaria: Larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [M]")
![Pachycnemia hippocastanaria: Larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [S]](bilder1/geometridae/hippocastanaria_16im2020.jpg "Pachycnemia hippocastanaria: Larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [S]")
![Pachycnemia hippocastanaria: Larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [S]](bilder1/geometridae/hippocastanaria_17im2020.jpg "Pachycnemia hippocastanaria: Larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [S]")
![Pachycnemia hippocastanaria: Larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [S]](bilder1/geometridae/hippocastanaria_18im2020.jpg "Pachycnemia hippocastanaria: Larva (SW-Germany, central Black Forest, Hornberg, late March 2020) [S]")
![Pachycnemia hippocastanaria: Pupa (e.l. SW-Germany, central Black Forest, Hornberg, larva in late March 2020) [S]](bilder1/geometridae/hippocastanaria_19im2020.jpg "Pachycnemia hippocastanaria: Pupa (e.l. SW-Germany, central Black Forest, Hornberg, larva in late March 2020) [S]")
![Pachycnemia hippocastanaria: Pupa (e.l. SW-Germany, central Black Forest, Hornberg, larva in late March 2020) [S]](bilder1/geometridae/hippocastanaria_20im2020.jpg "Pachycnemia hippocastanaria: Pupa (e.l. SW-Germany, central Black Forest, Hornberg, larva in late March 2020) [S]")
![Pachycnemia hippocastanaria: Larval habitat (SW-Germany, central Black Forest, Hornberg, late March 2020) [N]](bilder1/geometridae/hippocastanaria_21im2020.jpg "Pachycnemia hippocastanaria: Larval habitat (SW-Germany, central Black Forest, Hornberg, late March 2020) [N]")
![Pachycnemia hippocastanaria: Larval habitat (SW-Germany, central Black Forest, Hornberg, late March 2020) [N]](bilder1/geometridae/hippocastanaria_22im2020.jpg "Pachycnemia hippocastanaria: Larval habitat (SW-Germany, central Black Forest, Hornberg, late March 2020) [N]")
Host plants:
The larva feeds on Calluna vulgaris, perhaps also Erica.
Habitat:
Pachycnemia hippocastanaria inhabits Calluna heathland and similar warm sites.
Life cycle:
Pachycnemia hippocastanaria occurs in two or three generations between April and October. In central Europe there are usually two generations. Hibernation takes place either as a pupa or larva. I recorded mature larvae in the central Black Forest in late March 2020.
Remarks:
Pachycnemia hippocastanaria occurs from NW-Africa across parts of Europe to S-Russia and Turkey.
