Liriomyza eupatorii (Kaltenbach)

Lonsdale, Owen, 2021, Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states, ZooKeys 1051, pp. 1-481 : 1

Liriomyza eupatorii (Kaltenbach)

Figs 599-602

Agromyza eupatorii Kaltenbach, 1874: 320.

Liriomyza eupatorii . Hendel, 1920: 143, 1931: 217; Frick 1959: 404; Spencer 1969: 174, 1976: 245 [as synonym of Liriomyza orbitella , designation of Liriomyza orbitella lectotype], 1981: 230; Sehgal 1971: 333; Spencer and Steyskal 1986: 129; Lonsdale 2011: 46, 2017: 47; Scheffer and Lonsdale 2018: 87; Eiseman and Lonsdale 2018: 49; Papp and Cerny 2017: 209 [as synonym of L. pusilla (Meigen)]; Eiseman et al. 2021: 25 [stat. reinst.].

Liriomyza orbitella Hendel, 1931-1936: 236. Spencer 1976 [synonymy].

Description.

Wing length 1.7-2.2 mm (♂), 1.9-2.0 mm (♀). Length of ultimate section of vein M4 divided by penultimate section: 2.0-2.7. Eye height divided by gena height: 3.0-4.4.

Chaetotaxy: Two ori (sometimes three on one side); two ors. Acrostichal setulae in four irregular rows.

Colouration: As described for L. sativae except as follows: lateral margin of frons brown (not enclosing fronto-orbitals) if first flagellomere brownish on distal margin; only base of hind femur sometimes brown dorsally, or in western North America, femora brown basally and with light dorsoapical mottling (rarely with more extensive pigmentation), but less commonly with only basal markings or entirely yellow; yellow posterolateral spots on scutum sometimes large and distinct; anepisternum dark along anteroventral and ventral margins, sometimes with spot reaching base of anepisternal seta.

Genitalia: (Figs 599-602 ) Epandrium and surstylus as for L. sativae . Basiphallus sclerotised along dorsoapical, left lateral and part of right lateral surfaces. Paraphallus narrow. Hypophallus small, narrow, and strongly curved. Mesophallus 1/2 width of distiphallus; mesophallus and distiphallus with complete ventral suture. Distiphallus broadly bell-shaped with sides slightly converging apically and basal margin thick and truncated. Ejaculatory apodeme with stalk narrow and blade broad with dark distal margin.

Hosts.

Apocynaceae - Asclepias . Asteraceae - Aster , Baccharis , Eupatorium , Lapsana , Mikania , Solidago , Symphyotrichum , Xanthium ; possibly Callistephus . Lamiaceae - Galeopsis ( Benavent-Corai et al. 2005; Lonsdale 2011, 2017; Eiseman and Lonsdale 2018). Putative host genera for which only leaf mines are known: Ambrosia , Erigeron , Euthamia , Senecio , and Zinnia ( Eiseman et al. 2021).

Distribution.

Canada: AB, BC, MB, NB, NS, ON, QC, SK. USA: CA, DE, GA, IL, MA, MI, MS, MT, NC, NY, OK, PA, SC, TN, VA, WA, WV. Europe.

Type material.

Syntypes [eupatorii]: Austria. [not given]. [Type data unknown]

Lectotype [ Liriomyza orbitella ]: Finland. Esbo (1♂, NMW). [Not examined]

Material examined.

England. Chippenham Fen., Cambs., Em., "Eup. Cann.", K.A. Spencer (1♂ [with puparium], USNM), Cornwall, Huckett , 11.vi.1976, on Eupatorium (1♂, USNM) . USA. GA: Robun Co., Addie Branch, E. Fork Chattooga River, 2400', 1.viii.1957, J.G. Chillcott (1♀, USNM), MA: 4mi SW of Ashton, 3.vi.1984, G.F. and J.F. Hevel (1♀, USNM), Walden Pond, Concord, 26.vii.1961, W.W. Wirth (1♂, USNM), Hampshire Co. , South Hadley , nr. Lithia Springs Reservoir, 11.v.2016, C.S. Eiseman, Symphyotrichum cordifolium , em. 27.v.2016, #CSE2505, CNC654242- 654244 (3♂, CNC), MD: Somerset Co. , Snowhill, 19.v.1968, swamp margin, W.W. Wirth (1♀, USNM), Plummers Isl. , 8.v.1915, J.C. Crawford (1♀, USNM), Montgomery Co. , Clarksburg, 20-22.v.1988, W.E. Steiner and J.M. Swearingen (1♂, USNM), Colesville, 14.vi.1976, W.W. Wirth (1♂, USNM), Bethseda, G. Steyskal, 4.v.1969 (3♂ 1♀, USNM), 26.v.1968 (1♀, USNM), 27.v.1972 (1♂, USNM), 26.v.1974 (1♂, USNM), “7-12” (1♀, USNM), MS: Leland, experimental forest, 11.v.1979, K.A. Spencer (1♀, USNM), NC: Smokies, Forneys Ridge, 26.vi.1941, A.L. Melander (1♀, USNM), OK: Payne Co. , Mehan, 23.iii.2016, M.W. Palmer, Symphyotrichum praealtus , em. 14.iv.2016, #CSE2650, CNC653986 (1♂, CNC), PA: Spring Br., 11.vi.1945, DDT Expt. (1♀, USNM), TN: East Ridge , 6.v.1952, O. Peck (1♀, USNM), VA: Alexandria, 29.vi.1952, W.W. Wirth (1♀, USNM), Warsaw, 26.vii.1952, W.W. Wirth (1♀, USNM), Falls Church, Holmes Run, 21.vi.1961, light trap, W.W. Wirth (1♂, USNM), Shenandoah, Big Meadows, 5.vii.1939, A.L. Melander (1♂ 1♀, USNM), Giles Co. , Mountain lake , 7.ix.1977, G.C. Steyskal (4♂, USNM), Great Falls , 4.v.1963, G. Steyskal (1♂, USNM). Also see Lonsdale (2011, 2017) .

Figures

Figures 599 - 607. Liriomyza eupatorii (Kaltenbach), male genitalia 599 hypandrium and postgonite, ventral 600 ejaculatory apodeme 601 phallus, ventral 602 phallus, left lateral. Originally published in part in Lonsdale (2011) 603 - 607 L. fricki Spencer, male genitalia 603 ejaculatory apodeme 604 external genitalia, ventral 605 hypandrium and postgonite, ventral 606 phallus, ventral 607 phallus, left lateral. Originally published in part in Lonsdale (2017).