Seq # 160540010

Pachythelia villosella (Ochsenheimer, 1810) Species

Last modified: Feb. 25, 2021, 4:05 p.m.

A very rare species in Belgium, only known from the Kempen and LX. Prefers moorland and heatland habitats.


Family: Psychidae > Subfamily: Oiketicinae > Tribus: Acanthopsychini > Genus: Pachythelia > Species: Pachythelia villosella
Vernacular names
Grote reuzenzakdrager (NL), Zottiger Sackträger (DE)
First mention in Belgium
Heylaerts F. J. M. 1884. Les Psychides de la Hollande et de la Belgique. — Annales de la Société Entomologique de Belgique 28: xci–xciv. On page xcii. view page




Museum specimens

No pictures yet!

Specimens in nature


The species is mainly recorded by the larval cases. Cases of females are more easily found as they are attached to tree trunks whereas cases of the males stay very low in the vegetation.
Females are apterous and have much reduced legs and stay in their larval cases during their entire life.
The males emerge in the evening, they fly in the sunshine but are also active at night and are then attracted to light.

No pictures yet!

Flight periods

.One generation a year: from late April to early July.

Observed on

Host plant (genera):
Calluna and Erica

Polyphagous on grasses [Poaceae] and herbs.


Moorland and heatland habitats, dry meadows, peat bogs.

No pictures yet!