Chromatomyia vernalis (Groschke, 1957)

Diptera, Agromyzidae

mine

The larva makes several mines, migrating form one leaf to the other through the heart of the leaf rosette. The beginning is a narrow, unbranchhed corridor with the frass as fine grains at either sides of a green central band. The mine widens into a large blotch with the frass in distinct thread fragments. Pupation external (unusual for a Chromatomyia).

hostplants

Gentianacee, monophagous

Gentiana verna.

Referred by Maček (1999a) also from G. cruciata, lutea.

phenology

Larvae in May and August (Hering, 1957a).

BENELUX

Not known from the Benelux countries (Fauna Europaea, 2009).

distribution within Europe

Germany (Fauna Europaea, 2009); furthermore Switzerland, Slovenia, Bulgaria (Černý & Merz, 2006a; Groschke, 1957a; Maček, 1999a).

larva

The material from which this species was reared turned out two contain two different types of larvae; which of the two relates to vernalis is not known. Both types have been described by Hering (1955a).

synonyms

Phytomyza vernalis.

references

Černý & Merz (2006a, 2007a), Groschke (1957a), Hering (1955a:280, 1957a), Maček (1999a), von Tschirnhaus (1999a).

08/12/2011