Urtica doica, Nieuwendam

mine

Full depth corridor (unusual for an agromyzid!), mostly beginning at the leaf margin, and never starting with a closely set, “intestine-like”, number of curves. Further on the corridor considerably widens, mostly keeping close to the leaf margin. Often several larvae in a mine. Frass in lumps or short rods, never in long threads. Pupation outside the mine

host plants

Urticaceae, oligophagous (?)

Urtica dioica, pilulifera; Parietaria.

The occurrence on Humulus needs confirmation.

phenology

Larvae in the Netherlands found from early May till early November; possibly in a spring and in a (much stronger) autumn generation. However, Scheirs, De Bruyn & von Tschirnhaus (1996a) consider the species univoltine, with adults in late summer.

BENELUX

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

NE recorded (Ellis: numerous localities).

LUX recorded (Ellis: Kautenbach).

distribution within Europe

From Scandinavia to France, Italy and Hungary, and from Ireland to the Baltic States and Poland (Fauna Europaea, 2007).

larve

puparium

synonyms

Agromyza urticae Nowakowski, 1964.

notes

Only in 1964 Nowakowski (1964a) discovered that the classical species A. reptans was a mix of two: A. reptans Fallén and an undescribed species, that received the name A. urticae. Because it turned out that this name already was in use, shortly after the replacement name A. pseudoreptans was coined.

A. reptans is in our region very much rarer than pseudoreptans (Martinez, 1984a; Spencer 1976a, also own experience). Older references to reptans most probably therefore concern pseudoreptans.

references

Andersen & Jonassen (1994a), Beiger (1970a, 1979a), Beuk (2002a), Černý (2011a, 2012a), Černý, Andrade, Gonçalves & von Tschirnhaus (2018a), Černý, Barták & Roháček (2004a), Černý & Merz (2006a, 2007a), Černý & Vála (1999a), Černý, Vála & Barták (2001a), Eiseman & Lonsdale (2018a), Eiseman, Lonsdale, van der Linden ao (2021a), Hering (1967a), Martinez (1984a), Michalska (1970a, 1972a, 1976a, 2003a), Pakalniškis (1990a, 1995a), Papp & Černý (2015a), Robbins (1991a), Scheirs, De Bruyn & von Tschirnhaus (1996a, 1999a), Spencer (1971a, 1972a, 1976a), von Tschirnhaus (1982a, 1999a).