Liriomyza ptarmicae

Family

Subfamily

Genus

Species

Liriomyza ptarmicae de Meijere. 1925

Mine

Narrow, linear mine, often starting on lower surface, with frass in strings or pearl chains. In smaller leaves, the mine may be full depth. Pupariation external.

Host Plants

• Achillea
• Anthemis
• Artemisia
• Chrysanthemum
• Leucanthemum
• Matricaria

Confusion Species

Chromatomyia horticola, Chromatomyia syngenesiae, Liriomyza artemisicola, Liriomyza demeijerei, Liriomyza tanaceti, Liriomyza yasumatsui, Phytomyza artemisivora, Phytomyza corvimontana, Phytomyza pullula, Phytomyza tanaceti.

Recording Grade

5

National Status

pRDB 3.

Puparium

Yellow, with posterior spiracles possessing three bulbs each.

Adult

Head: frons, orbits and antennae yellow; hind-margin of eye black beyond vte, sometimes approaching its base, normally both vt on yellow ground; 2 ors, 2 ori; third antennal segment small, round, with fringe of conspicuous whitish pubescence.
Mesonotum: black, distinctly shining; acr in 4 rows.
Wing: 1.5-1.7 mm; last section of M₃₊₄ 3x length of penultimate.
Colour: mesopleura black in lower front corner, lower pleura uninterruptedly black, not yellow between sterno- and hypopleura; legs: femora either entirely yellow or with variable brownish striations, tibiae and tarsi slightly darker.