Amauromyza shepherdiae Sehgal

(Fig. 98)

Material examined. VERMONT: Chittenden Co., South Burlington, Winooski Gorge, 29.vi.2014, em. 20.vii.2014, C.S. Eiseman, ex Shepherdia canadensis, #CSE1196, CNC384845 (1♀) .

Host. Elaeagnaceae: Shepherdia canadensis (L.) Nutt.

Leaf mine. (Fig. 98) Pale green to whitish; initially narrow and linear, with the black frass particles forming two rows; later forming a blotch that ultimately obliterates the linear portion, with frass in scattered grains and irregular lumps.

Puparium. Formed outside the mine.

Distribution. * USA: VT; Canada: AB, MB (Boucher 2012a).

Comments. A larva was found making a similar mine in a leaf of Elaeagnus umbellata Thunb. a few meters from the Shepherdia plants, but we were unable to rear it. This is the only leaf mine we have ever seen on E. umbellata, a common invasive shrub in New England, and it was almost certainly a larva of Amauromyza shepherdiae, possibly occurring on this plant only because of its proximity to the rare native shrub that is this fly’s normal host.