Amauromyza flavifrons (Meigen)

(Fig. 97)

Material examined. OHIO: Hocking Co. , South Bloomingville, Deep Woods Farm, 24.x.2013, em . 26– 28.iii.2014, C.S. Eiseman, ex Silene rotundifolia, #CSE1028, CNC384742–384747 (6♀); OREGON: Lane Co., Blue River, 24.vii.2016, em . 18–30.viii.2016, M.W. Palmer, ex Silene coronaria, #CSE3037, CNC638887–638890 (3♂ 1♀).

Hosts. Amaranthaceae: Beta vulgaris L., Caryophyllaceae: Dianthus barbatus L., Lychnis coronaria (L.) Desr., Saponaria officinalis L., Silene latifolia Poir., S. * rotundifolia Nutt., S. stellata (L.) W.T. Aiton (Spencer 1969; Spencer & Steyskal 1986; Scheffer 1999; Scheffer & Lonsdale 2018). We have seen probable mines of this species (including photographs submitted to www.BugGuide.net) on Dianthus armeria L., Lychnis chalcedonica L., L. flos-cuculi L., and Stellaria media (L.) Vill.

Leaf mine. (Fig. 97) A white linear-blotch; the completed blotch may obliterate the linear portion. Frass is in sparsely scattered black grains.

Puparium. Brown; formed outside the mine.

Distribution. USA: DE, MI, MN (Scheffer et al. 2007), NY (Scheffer 1999), OH, OR, PA, VT, WA, WI (leaf mines only); Canada: BC, ON, QC; Europe (Boucher 2012a). We have found probable mines of this species (including photographs submitted to www.BugGuide.net) in CT, MA, MD, and NC.