Phytomyza doellingeriae Eiseman & Lonsdale

Material examined. MASSACHUSETTS: Worcester Co ., Rutland, 42.381206, -71.964980, 9.vi.2018, em. ~ 29. vi.2018, C.S. Eiseman, ex Doellingeria umbellata, # CSE4705, CNC1135713 (1♁).

Host. Asteraceae: Doellingeria umbellata (Mill.) Nees.

Leaf mine. Whitish, upper surface, narrow, entirely linear; frass in closely spaced grains or beaded strips along the sides (Eiseman & Lonsdale 2018).

Puparium. Blackish; formed outside the mine.

Phenology and voltinism. This species is at least bivoltine, with larvae feeding in early June in Massachusetts emerging as adults within a few weeks; in Maine, larvae have been found in late August, with adults emerging the following spring.

Distribution. USA: *MA, ME.

Comments. Phytomyza solidaginivora Spencer has been reared from larvae forming similar mines on Doellingeria umbellata in mid-June in Maine (Eiseman & Lonsdale 2018); it therefore appears that phenology is not useful in distinguishing mines of the two species.