Agromyza vockerothi Spencer,

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

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Agromyza vockerothi Spencer


Agromyza vockerothi Spencer 

( Fig. 79View FIGURES 75–82)

Material examined. MASSACHUSETTS: Franklin Co., Northfield, Crag Mountain , 11.x.2013, em. 27.iii.2014, C.S. Eiseman, ex Rubus (blackberry), #CSE1030, CNC384794View Materials (1♂)  ; Northfield, 276 Old Wendell Rd. ,, em. 22.vii.2017, C.S. Eiseman, ex Rubus occidentalis  , #CSE3993, CNC939674View Materials (1♂)  ; Nantucket Co., Nantucket, Nantucket Conservation Foundation Bird Sanctuary ( North Beach St. ),, em. 22.viii.2013, C.S. Eiseman, ex Rubus (blackberry), #CSE829, CNC392662View Materials (1♂)  ; NORTH CAROLINA: Durham Co., Durham, Glennstone Preserve , 29.v.2017, em. 24.viii.2017, T.S. Feldman, ex Rubus pensilvanicus  , #CSE4179, CNC939838View Materials (1♂)  .

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

Leaf mine. ( Fig. 79View FIGURES 75–82) 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 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.