Agromyza vockerothi Spencer, 1969

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 : 14-15

Agromyza vockerothi Spencer

( Fig. 79 )

Material examined. MASSACHUSETTS: Franklin Co., Northfield, Crag Mountain , 11.x.2013, em. 27.iii.2014, C.S. Eiseman, ex Rubus (blackberry), #CSE1030, CNC384794 (1♂) ; Northfield, 276 Old Wendell Rd. , 27.vi.2017, em. 22.vii.2017, C.S. Eiseman, ex Rubus occidentalis , #CSE3993, CNC939674 (1♂) ; Nantucket Co., Nantucket, Nantucket Conservation Foundation Bird Sanctuary ( North Beach St. ), 11.vi.2013, em. 22.viii.2013, C.S. Eiseman, ex Rubus (blackberry), #CSE829, CNC392662 (1♂) ; NORTH CAROLINA: Durham Co., Durham, Glennstone Preserve , 29.v.2017, em. 24.viii.2017, T.S. Feldman, ex Rubus pensilvanicus , #CSE4179, CNC939838 (1♂) .

Hosts. * Rosaceae : Rubus cf. allegheniensis Porter , R. occidentalis L. , R. pensilvanicus Poir.

Leaf mine. ( Fig. 79 ) A long, gradually widening, linear mine with frass in small grains.

Puparium. Reddish-brown; formed outside the mine.

Distribution. USA: *MA, NC, TN; Canada: AB, BC, NS, ON.

Comments. Our rearing records indicate this species is bivoltine, with larvae feeding in late spring and early summer and in autumn. Spencer (1969, 1990) and Spencer & Steyskal (1986) reported a long, white, upper surface linear mine, relatively wide at the end, caused by an unidentified Agromyza on Rubus idaeus L. and R. odoratus L. in Ontario, Minnesota, and Virginia. This may well have been the work of A. vockerothi . We have seen similar mines (including in photographs submitted to www.BugGuide.net) on these and other Rubus spp., including R. allegheniensis Porter , R. armeniacus Focke , R. hispidus L., and R. parviflorus Nutt. , in Connecticut, Idaho, Iowa, Maine, Maryland, New Hampshire, New York, Ohio, Oregon, Rhode Island, Washington, Wisconsin, and New Brunswick.

Figures

FIGURES 75–82. leaf mines; 75: Agromyza reptans Fallén in Urtica dioica; 76: Agromyza rudbeckiana Scheffer & Lonsdale in Heliopsis helianthoides; 77: same, secondary mine; 78: Agromyza soka spec. nov. in Robinia pseudoacacia; 79: Agromyza vockerothi Spencer in Rubus sp.; 80: Agromyza sp. 1 in Ƒerbesina alternifolia; 81: Japanagromyza viridula (Coquillett) in Quercus alba; 82: J. viridula in Q. ilicifolia.