Phytomyza autumnalis Hering, 1957

on Asteraceae

Phytomyza autumnalis: mine on Cirsium arvense

Cirsium arvense, UK, Norfolk, Downham Market © Rob Edmunds

Phytomyza autumnalis: mine on Cirsium arvense

another specimen

Phytomyza autumnalis: mine on Cirsium arvense

frass pattern

Phytomyza autumnalis: puparium in mine

puparium in the mine

Phytomyza autumnalis: puparium

puparium dorsal view; note the large conical bases

Phytomyza autumnalis: puparium

puparium ventral view

mine

Branched, upper-surface corridor, with very irregular sides. Frass in isolated grains, maximally only 4 times their diameter apart. Pupation within the mine.

hostplants

Asteraceae, oligophagous

Centaurea nigra, scabiosa; Cirsium arvense, oleraceum; Cyanus montanus; Onopordum acanthium.

phenology

Larvae only as late as October-November (Hering, 1957a).

BENELUX

Not known from the Benelux countries (Fauna Europaea, 2008).

distribution within Europe

Ireland, the UK, Germany, Poland, Moldavia (Fauna Europaea, 2008); also Austria (von Tschirnhaus, 1982a).

larva

puparium

Opaque, metallic black, in a pupal chamber (Griffiths, 1959a); the anterior spiracula penetrate the epidermis (Hering, 1957a).

synonyms

Sometimes Griffiths is mentioned as the author of this species. Although Griffiths (1959a) did extensively describe the species, it was described previously by Hering (1957b). Hering’s description only considered larva and puparium, and was incorrect on a few points, but these facts are not relevant for the priority.

references

Beiger (1970a, 1979a), Dreger & Myssura (2005a), Griffiths (1959a), Hering (1957a,b), Michalska (1970a, 1972a, 1976a), Robbins (1991a), Spencer (1972a), von Tschirnhaus (1982a, 1999a).

mod 23.x.2017