Pegomya centaureae Hennig, 1973

on knapweed

mine

Large blotch witch conspicuous primary and secondary feeding lines, preceded by a narrow, upper- or lower-surface corridor. The corridor begins at an elliptic egg shell glued to the leaf. Frass in the corridor in many fine grains, close together and sometimes coalescing; in the blotch the grains are larger and dispersed. Pupation external.

host plants

Asteraceae, narrowly oligophagous

Centaurea stoebe, vallesiaca; Cyanus montanus, triumfettii.

phenology

Larvae in July (Hering, 1957a).

distribution within Europe

Spain, southern Germany, Switzerland, Italy, Croatia, Slovenia.

larva

Rear spiraculum with three papillae.

synonyms

Pegomya centaureae Hering, 1957; Pont & Ackland (2009a) discuss the confusing nomenclature.

notes

The Fauna Europaea (2011) states that Hennig originally placed his species in the genus Pegohylemyia (=Botanophila); therefore the species is listed there within Botanophila. Actually, Hennig described the species as Pegomya centaureae. (Thanks to Charles Godfray for pointing this out to me).

references

Hering (1957a), Maček (1999a), Müller (1989a), Pont & Ackland (2009a).