Amauromyza shepherdiae Sehgal

Eiseman, Charles S. & Lonsdale, Owen, 2018, New state and host records for Agromyzidae (Diptera) in the United States, with the description of thirty new species, Zootaxa 4479 (1), pp. 1-156 : 25-26

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.

Figures

FIGURES 97–108. leaf mines; 97: Amauromyza flavifrons (Meigen) in Silene rotundifolia; 98: Am. shepherdiae Sehgal in Shepherdia canadensis; 99: Aulagromyza luteoscutellata (de Meijere) in Lonicera morrowii; 100: Au. orbitalis (Melander) in Diervilla lonicera; 101: Au. populicola (Walker) in Populus deltoides; 102: Calycomyza artemisivora spec. nov. in Artemisia ludoviciana; 103: C. avira spec. nov. in Bidens frondosa; 104: C. eupatoriphaga spec. nov. in Ageratina altissima, young mine; 105: same mine, complete; 106: C. eupatorivora Spencer in Chromolaena odorata; 107: C. flavinotum (Frick) in Arctium minus; 108: C. flavinotum in Eupatorium perfoliatum.