Ophiomyia abutilivora Spencer

(Figs. 64–65)

Material examined. IOWA: Winneshiek Co., Decorah, Trout Run Trail, vii.2017, em. by 26.vii.2017, J. van der Linden, ex Abutilon theophrasti, # CSE4940, CNC1643668–1643669 (1♁ 1♀) .

Hosts. Malvaceae: Abutilon theophrasti Medik.; adults have been collected on flowers of Sida cordifolia L. (Spencer & Steyskal 1986).

Larval mine. (Figs. 64–65) The larva mines up and down the stem, forming an irregular, gall-like “welt” and associated scarring.

Puparium. Whitish to yellowish; formed within the stem, with the anterior spiracles projecting through the epidermis.

Phenology and voltinism. The only reared specimens in the type series are from Mississippi with a date of 22 October; whether this was the collection or emergence date was not stated, but either way they would seem to represent a different generation from our Iowa specimens, which emerged from green stems in late July. Adults have been collected in August and September in Minnesota, and in March in Florida (Spencer & Steyskal 1986) .

Distribution. USA: FL, *IA, [IL], MN, MS, [WI] (Spencer & Steyskal 1986).