Phytomyza conyzae Kaltenbach, 1859

Diptera, Agromyzidae

Phytomyza conyzae: mine on Inula helenium

Inula helenium, Belgium, prov. Namur, Gembloux; © Jean-Yves Baugnée


8595

Pulicaria dysenterica, Susteren


8595_det

puparium within the mine

mine

Upper surface corridor, often following the midrib for some distance. Frequently the very first part of the mine is lower-surface, and sometimes the entire mine remains at the lower surface. The corridor is wide from the start, with irregular sides. Frass initially in two rows of fine grains; further on the grains become larger and more irregular, sometimes forming pearl chains, and are dispersed less regularly. Pupation takes place either outside or within the mine. When the larva has left the mine a semicircular exit slit is made. When the puparium is formed within the mine the spiracula do not penetrate the epidermis, and an irregular semicircular opening is made in the epidermis in front of the puparium (lower picture).

hostplants

Asteraceae, oligophagous

Anaphalis; Arnica montana; Buphthalmum salicifolium; Dittrichia graveolens, viscosa; Erigeron bonariensis, canadensis; Inula britannica, candida, conyzae, ensifolia, helenium, hirta, oculus-christi, spiraeifolia;mLimbarda crithmoides; Pallenis; Pulicaria dysenterica; Telekia speciosa.

Dittrichia viscosa is the main hostplant in the Mediterranean Region, where the fly is abundant (Spencer, 1972b).

phenology

Larvae in June-July and Augusr-September (Hering, 1957a).

BENELUX

BE recorded (Scheirs, De Bruyn & Verdyck, 1993a).

NE recorded (de Meijere, 1926a).

LUX recorded (Ellis, Palmberg near Ahn).

distribution within Europe

West of the line Sweden – Thrace (Fauna Europaea, 2008).

larva

Described by de Meijere (1926a); rear spiraculum with 15-20 papillae.

synonyms

Phytomyza centaureae Hering, 1924; Ph. arnicophila Hering, 1931; Ph. riveriae Hering, 1932; Ph. inulina Hering, 1932.

notes

Hering (1967a) noted that in southern Europe (Italy, Dalmacia) the number of papillae on the rear spiraculum is considerably reduced, between 9 and 12.

Also Beri (1971e) presents a description of the larvae; but because his material was taken from Clematis montana his identification cannot be taken seriously.

references

Amsel & Hering (1933a), Beiger (1979a), Beri (1971e), Beuk (2002a), Buhr (1930a, 1941b, 1964a), Černý (2004a, 2011a), Černý & Vála (1996a, 1999a), Ci̇velek, Çikman & Dursun (2008a), Drăghia (1968a), Griffiths (1962a), Hering (1924a, 1930b, 1931a, 1932e, 1936b, 1957a,b, 1967a), Huber (1969a), Kabos (1971a), Kvičala (1938a), Maček (1999a).Masetti, Lanzoni, Burgio & Süss (2004a), de Meijere (1926a, 1937a, 1939a, 1941a, 1946a, 1950a), Niblett (1956a), Ostrauskas, Pakalniškis & Taluntyte (2003a), Robbins (1991a), Scheirs, De Bruyn & Verdyck (1993a), Skala & Zavřel (1945a), Sønderup (1949a), Spencer (1953a, 1954d, 1966b, 1967a, 1972a,b, 1973c, 1974a, 1976a), Starý (1930a), Süss (1982a), Surányi (1942a), von Tschirnhaus (1999a), Utech (1962a), Zoerner (1969a).

28/04/2017

pub 28.iv.2017 · mod 28.vi.2017