Phytomyza agromyzina Meigen

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 : 67

Phytomyza agromyzina Meigen

Material examined. OKLAHOMA: Payne Co., Mehan , 36.014339° N, 96.996744° W, 13.iv.2016, em. 22.iv.2016, M.W. Palmer, ex Cornus drummondii , #CSE2661, CNC653985 (1♂) .

Hosts. Cornaceae : Cornus canadensis L., C. * drummondii C. A. Mey. , C. sericea L. ( Spencer 1969, 1981); we have also seen leaf mines on C. alternifolia L. f., C. amomum Mill. , C. nuttallii Audubon ex Torr. & A. Gray , and C. racemosa Lam.

Leaf mine. Long, narrow, entirely linear, on the upper leaf surface; whitish, with frass in alternating black strips, often with a broad, green central band that occupies nearly the full width and may obscure the frass pattern.

Puparium. Yellowish-brown; normally on the ground, but not infrequently remaining in the exit slit at the end of the mine ( Spencer 1981). In the Oklahoma example, the puparium was formed entirely within the mine.

Distribution. USA: CA, *OK, WA; Canada: AB (larvae only), QC; Europe. We have also seen leaf mines (including photographs posted to www.BugGuide.net) in USA: AK, CO, IA, ID, MA, KS, NH, OR, VT, WI; Canada: NB, ON, SK.