Calycomyza solidaginis (Kaltenbach)

(Fig. 118)

Material examined. MASSACHUSETTS: Nantucket Co., Nantucket, Ice Pond Lot, 5.viii.2012, em . 8– 15.viii.2012, C.S. Eiseman, ex Solidago latissimifolia, #CSE22, CNC391431–391434 (3♂ 1♀); same location, 26.vii.2014, em . 5.viii.2014, C.S. Eiseman, ex Solidago latissimifolia, #CSE1269, CNC384825, CNC384826 (2♀); Nantucket, Dead Horse Valley, 6.viii.2012, em. by 15.viii.2012, C.S. Eiseman, ex Solidago altissima, #CSE32, CNC391435–391439 (4♂ 1♀); Nantucket, Squam Swamp, 12.vi.2013, em. 23.vi.2013, C.S. Eiseman, ex Solidago latissimifolia, #CSE587, CNC384812 (1♀); Tuckernuck, 14.vii.2012, em. 22.vii.2012, J. A. Blyth, ex Solidago sempervirens, #CSE58, CNC391440 (1♂) ; NORTH CAROLINA: Scotland Co., Laurinburg, St. Andrews University, 31.iii.2016, em . 5–16.iv.2016, T.S. Feldman, ex Solidago canadensis, #CSE2374, CNC653966–653969 (4♂); 22.ii.2017, em. ~ 4.iii.2017, T.S. Feldman, ex Solidago canadensis, #CSE3741, CNC939755–939757 (1♂ 2♀).

Hosts. Asteraceae: Solidago * altissima L., S. * canadensis L., S. * latissimifolia Mill., S. * sempervirens L. We have seen probable mines of this species on S. gigantea Aiton, S. juncea Aiton, S. odora Aiton, S. rugosa Mill., S. speciosa Nutt., and S. ulmifolia Muhl. ex Willd., as well as on Oligoneuron rigidum (L.) Small (formerly S. rigida L.).

Leaf mine. (Fig. 118) Whitish, initially linear, expanding into a blotch that proceeds apically along the leaf margin. Occasionally the linear portion is obliterated by the blotch. Frass is brown and diffuse, forming a central line in the linear portion.

Puparium. Brown; formed within the mine, glued to a lump of frass on the floor.

Distribution. Throughout the USA; Canada: NS, ON, QC, YT (Boucher & Wheeler 2001); Europe.