Digitivalva granitella (Treitschke, 1833)

Digitivalva granitella mine

>Inula conyza, Belgium, prov. Namur, Saint-Servais, carrières d’Asty-Moulin; © Jean-Yves Baugnée

Digitivalva granitella mine

detail

mine

The mine begins with a long and narrow corridor, that, according to Hering (1957a) originates in the midrib or leaf base. This continues into a large, full depth blotch from which almost all frass is ejected. The larva can leave its mine, and restart elsewhere; min without initial corridor can occur therefore. Pupation outside the mine.

hostplants

Asteraceae, monophagous

Inula conyzae, helenium.

References to Buphthalmum salicifolium and Pulicaria dysenterica are almost certainly, and to Inula britannica and Dittrichia viscosa probably, incorrect (zie Klimesch, 1956b).

phenology

Larvae in April – May, and June – July (Hering, 1957a).

BENELUX

BE recorded (Phegea, 2009).

NE not recorded (Fauna Europaea, 2009).

LUX not recorded (Fauna Europaea, 2009).

distribution within Europe

From Germany and Poland to the Iberian peninsula, Sardinia, Italy, and Bulgaria (Fauna Europaea, 2009).

larva

pupa

Described by Patočka & Turčáni (2005a); lies in a reticulate cocoon.

synonyms

Acrolepia granitella; Digitivalva variella (Müller-Rutz, 1920).

references

Amsel & Hering (1933a), Beiger (1979a), Buhr (1935b), Gaedike (1972a), Hartig (1939a), Hering (1936b, 1957a), Klimesch (1950c, 1956b), Patočka & Turčáni (2005a), Skala & Zavřel (1945a), Szőcs (1977a).

23/11/2014

mod 25.vii.2017