Wrong side of the leaf: assigning some Lithocolletinae species (Lepidoptera: Gracillariidae) to their proper genera Author Eiseman, Charles S. Author Davis, Donald R. text Zootaxa 2020 2020-03-17 4751 2 201 237 journal article 10.11646/zootaxa.4751.2.1 6d5c6a73-5675-46cf-98a4-ece6ddc8e121 1175-5326 3712951 7692DE47-FE0C-47CA-BF74-10302592AC5F Phyllonorycter tiliacella (Chambers, 1871) ( Figs. 68–70 ) L.[ithocolletis] tiliacella Chambers 1871a: 56 . Phyllonorycter tiliacella Chambers )— Davis 1983: 10 . FIGURES 68–70. Phyllonorycter tiliacella . 68: Occupied leaf mine on Tilia americana ; 69: Vacated mine with pupal exuviae protruding at right; 70: Reared adult. Leaf mine. Chambers (1871a) described the characteristic upper-surface mine of this species ( Figs. 68–69 ) as follows: “Small, circular or ovate, brownish, mottled with whitish; not visible underneath until the lower cuticle dies.” Braun (1908) characterized it as “white, densely speckled with dark brown”, which is in agreement with our observations. Host. Malvaceae : Tilia americana L. Distribution. Canada : ON, QC; USA : CT, IL, KY, MA, ME, MI, NH, NY, VT. Review. Chambers (1871a) reared this species from Tilia americana in Kentucky . Braun (1908) stated that it is common throughout the Atlantic states. Specific records include New York ( Forbes 1925 ), Ontario ( Yoshimoto 1977 ), Maine and New Hampshire ( Brower 1984 ), Illinois ( Godfrey et al . 1987 ), Connecticut ( Maier & Davis 1989 ), Vermont ( Grehan et al . 1995 ), and Quebec ( Handfield 1997 ). CSE has found leaf mines in Massachusetts (Montague, Franklin Co.), and they have been photographed in Michigan (Orchard Lake, Oakland Co.; Megachile 2019 ). Comments. Godfrey et al . (1987) listed adult collection dates in Illinois ranging from 6 May to 1 July. Maier & Davis (1989) reared adults from mines collected on 9 July and 15 September and stated that their evidence indicated two generations per year. A leaf mine CSE collected in Quebec on 8 July 2018 yielded an adult three days later ( Fig. 70 ).