Aulagromyza orbitalis (Melander)

Eiseman, Charles S., Lonsdale, Owen, Linden, John Van Der, Feldman, Tracy S. & Palmer, Michael W., 2021, Thirteen new species of Agromyzidae (Diptera) from the United States, with new host and distribution records for 32 additional species, Zootaxa 4931 (1), pp. 1-68 : 21

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Aulagromyza orbitalis (Melander)


Aulagromyza orbitalis (Melander)  

Material examined. OKLAHOMA: Payne Co., Mehan , 36.013839°, -96.998103°, 24.iv.2017, em. 22.iv.2018, M.W. Palmer, ex Symphoricarpos orbiculatus   , # CSE4424 ,   CNC1144117 View Materials (1♀)   ; WASHINGTON: Thurston Co., Olympia, Centralia Western Trail at 45th Ave. , 29.ix.2017, em. 19.ii.2018, E. Stansbury, ex Symphoricarpos albus   , # CSE4606 ,   CNC1135596 View Materials   (1♁).

Hosts. Caprifoliaceae   : Diervilla lonicera Mill.   , Lonicera dioica   L., L. sempervirens L.   , Symphoricarpos albus   (L.) S.F.Blake, S. mollis Nutt., S.   * orbiculatus Moench   , S. rotundifolius A.Gray.   , Triosteum aurantiacum E.P.Bicknell   ; a mine possibly of this species found on T. perfoliatum   L. ( Eiseman & Lonsdale 2018).

Leaf mine. Variously placed on the upper surface; green to yellowish-green or whitish; in some cases linear throughout, in others widening to a more or less distinct blotch ( Eiseman & Lonsdale 2018). On some hosts the frass tends to be regularly deposited in alternating, closely spaced particles or streaks in the narrow linear portion, but on Symphoricarpos orbiculatus   it is indistinct or diffuse throughout.

Puparium. Yellowish-brown to brown; formed outside the mine.

Phenology and voltinism. Our Oklahoma females were collected as larvae in late April and emerged as adults the following spring; a full-year diapause was also reported by Spencer (1969) for a female collected as a larva in Alberta in early June. Otherwise, adults have emerged within a few weeks from larvae collected in North Carolina in April, and from Alberta, Iowa, and Massachusetts in June ( Eiseman & Lonsdale 2018). Our new Washington specimens were collected as larvae in late September, emerging after overwintering.

Distribution. USA: CA, IA, ID, KS, MA, MI, NC, *OK, WA; Canada: AB, MB ( Eiseman & Lonsdale 2018).