Agromyza cinerascens Macquart, 1835
mine
Deep mine, descending from the leaf tip, irregularly widening. Frass deliquescent, only a few grains recognisable, mine greenish. Pupation outside the mine.
hostplants
Poaceae, oligophagous
Dactylis glomerata; Milium effusum; Secale cereale.
Dactylis is the main hostplant.
phenology
Larvae in May-June (Hering, 1957a).
BENELUX
BE observed (Scheirs, De Bruyn & von Tschirnhaus, 1996a).
NE observed (de Meijere, 1924a, 1939a). According to Hering (1957a) a quite common species, but this does not apply (at least presently) to the Netherlands.
LUX not observed (Fauna Europaea, 2007).
distribution within Europe
From Scandinavia to the Iberian Peninsula and Italy, and from the UK to Belarus and Hungary (Fauna Europaea, 2007).
larva
Below the mandibles no field with spiny warts. Front spiracles bifid, about 18 papillae. Rear spiracula rather strongly approaching, with 3 papillae. Mandibles with 2, not alternating, teeth.
puparium
Black.
synonyms
De Meijere (1928a) described the puparium, but some years later (1934a) it appeared that had been working on a mixture of two closely related species, viz., cinerascens and intermittens. The colour of the puparium, as described in the first paper (“shining yellow- to brown red”) applied to intermittens.
synonyms
Domomyza cinerascens.
notes
The structure of the male genitalia indicates a close relationship with A. intermittens and A.luteitarsis (Spencer, 1990a); see also Griffiths (1963a). It is therefore reasonable to assume that the characteristic sickle-shaped papillae of the rear spiracula that are figured by Darvas, Skuhravá & Andersen (2000a) for the latter two species also occur in cinerascens.
references
Andersen (2016a), Beuk (2002a), Černý & Merz (2005a, 2007a), Černý & Vála (1999a), Černý, Vála & Barták (2001a), Dempewolf (2004a), van Frankenhuyzen, Houtman & Kabos (1982a), Griffiths (1963a), Hering (1925a, 1955b, 1957a), de Meijere, 1924a, 1939a), Pakalniškis (200a), Pakalniškis ao (2000a), Papp & Černý (2015a), Parmenter (1949a), Robbins (1991a), Sasakawa (1961a), Scheirs, De Bruyn & von Tschirnhaus (1996a), Spencer (1966b, 1972a, 1974a, 1976a, 1990a), Süss (1979a), von Tschirnhaus (1999a), Vála & Rohacek.