Phytomyza continua Hendel, 1920

Diptera, Agromyzidae

mine

In Burdock the species bores in the petioles, and in Chicory it is a root borer, but in thistles it mainly lives in the base of the midrib, making from there brief excursions into the blade. The midrib swells somewhat, gall-like, and obtains a somewhat darker shade. The gall contains one or more larvae. Pupation takes place within the mine.

hostplants

Asteraceae, oligophagous

Arctium minus; Carduus crispus; Cichorium; Cirsium.

phenology

Larvae from March (Hering, 1957a).

BENELUX

BE recorded (Scheirs, De Bruyn & von Tschirnhaus, 1996a).

NE not recorded (Fauna Europaea, 2008).

LUX not recorded (Fauna Europaea, 2008).

distribution within Europe

From Scandinavia and Finland to Spain and Italy, and from the UK to Lithuania, Poland and Austria (Fauna Europaea, 2008).

larva

Described by Dempewolf (2001a).

puparium

Described and depicted by de Meijere (1934a); unusually large.

synonyms

Phytomyza cardui Hering, 1943; Ph. polyarthrocera Frey, 1946; Ph. zetterstedti Rydén, 1951, nec Schiner, 1864; Ph. zetterstedtiana Rydén, 1953.

notes

Robbins (1991a) attributes short corridors in the blade pf Burdock that end upon a thick vein (thence continuing as tunnels) to Melanagromyza lappae (Loew). However, according to Dempewolf (pers. comm.) this probably is the work of Ph. continua.

references

Andersen & Jonassen (1994a), Buhr (1964b), Černý (2001a, 2007a, 2011a), Černý & Merz (2006a, 2007a), Černý & Vála (1999a), Černý, Vála & Barták (2001a), Ci̇velek, Çikman & Dursun (2008a), Dempewolf (2001a), Hering (1943a, 1957a), de Meijere (1934a), Pakalniškis (1998a), Robbins (1991a), Scheirs, De Bruyn & von Tschirnhaus (1996a), Spencer (1972a,b, 1976a), Spooner & Bowdrey (2012a), Süss (1982a), Tomasi (2014a), von Tschirnhaus (1999a).

28/04/2017