Agromyza diversa Johnson, 1922

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

Agromyza diversa Johnson

Figs 179-182

Agromyza diversa Johnson, 1922: 26. Frick 1953: 58; Spencer 1969: 41; Spencer and Steyskal 1986b: 59; Eiseman and Lonsdale 2018: 9.

Liriomyza diversa . Frick 1952a: 402.

Description.

Wing length 2.9-3.3 mm (♂), 2.9-3.8 mm (♀). Length of ultimate section of vein M4 divided by penultimate section: 0.6-0.8. Eye height divided by gena height: 6.1--9.7. First flagellomere sometimes slightly longer than high; with teardrop-shaped tuft of pale hairs at apex.

Chaetotaxy: Two ori; two ors. Three or four dorsocentrals, decreasing in length anteriorly. Mid tibia with two or three posteromedial setae.

Colouration: Setae black. Body yellow, except as follows: head mostly dark brownish with yellow tint, with mouthparts light yellow, lunule yellow, fronto-orbital plate (narrow) sometimes yellowish to yellow, gena (excluding ventral margin) and face light brown, and ocellar tubercle sometimes yellowish around base of ocellar and postocellar setae; postpronotum, notopleuron and scutellum pale yellow/whitish; halter white; female with oviscape dark brown and face yellow. Calypter margin and hairs white.

Genitalia: (Figs 179-182 ) Surstylus not distinguishable from epandrium; inner face of surstylus flat and covered with numerous small, rounded tubercle-like setae that do not extend to anterior corner. Postgonite relatively large, flat, and broad. Halves of basiphallus long and narrow, with right sclerite bent at midpoint; apices not bent inwards. Hypophallus convoluted and with scalloped apical fringe and irregularly sclerotised base. Mesophallus subcylindrical, with sides bulging and with transverse dorsal band; closely associated with distiphallus, which is bulging medially, truncated apically and with subapical constriction.

Host.

Urticaceae - Laportea canadensis .

Distribution.

Canada: ON. USA: IA, IL, IN, IN, MA, MD*, NC, NY, OH, TN, VA, VT.

Type material.

Holotype: USA. MA: Chester, 7.viii.1912, C.W. Johnson (1♀, MCZ).

Paratype examined.

USA. IN: Lafayette, viii.1912, J.M. Aldrich, Paratype No. 50034 U.S.N.M. / CNC Type No. 16287, CNC352872 (1♀, CNC).

Additional material examined.

Canada. ON: Simcoe , 26.vi.1939, G.E. Shewell, CNC352873 (1♀, CNC) . USA. OH: Delaware Co., Sunbury, Monkey Hollow Rd. , 13-15.ix.2014, ex. Laportea canadensis , em. 16-24.x.2014, C.S. Eiseman, #CSE1432, CNC384847, CNC384848 (1♂ 1♀, CNC), IA: Ames, Pammel Woods, W.H. Robinson, 24.vi.1970 (2♂, USNM), 9.viii.1969 (1♂, USNM), 19.vi.1970 (1♂, USNM), Ames, Pammel Woods, 11.vi.1970, R.M. Miller (1♀, USNM), Ames, 1.viii.1969, W.H. Robinson (1♂, USNM), Allamakee Co., 3mi ESE Waterville, 43°11.0'N, 91°14.1'W, 2.viii.1960, J. Laffoon (1♂, USNM), Boone Co. , Ledges State Park , 14.vii.1971, R.M. Miller (1♀, USNM), IL: University of Illinois Woods , 2.vii.1945, "X 526" (1♂, USNM), 15.vii.1945, "X 527" (1♂, USNM), MD: Montgomery Co. , Dickerson , 14.vii.1974, G. Foster (1♂, USNM), OH: Delaware Co., Sunbury , Monkey Hollow Rd. , 13-15.ix.2014, em. 16-24.x.2014, C.S. Eiseman, ex Laportea canadensis , #CSE1432, CNC384847, CNC384848 (1♂ 1♀, CNC), NC: Graham Co. , Poplar Cove , 2500', 35°21.3'N, 83°56.1'W, 20.vi.1958, J. Laffoon (1♀, USNM), NY: Ithaca , 15.vi.1932 (1♀, USNM), TN: Davidson Co. , Nashville , West Meade Waterfall (36.094655, -86.913252), 21.viii.2017, em. 15-17.ix.2017, C.S. Eiseman, ex Laportea canadensis , #CSE4273, CNC939958-939960 (1♂ 2♀, CNC), VA: Fairfax Co. , Dead Run , 28.vii.1915, R.C. Shannon (1♀, USNM) .

Figures

Figures 179 - 182. Agromyza diversa Johnson, male genitalia 179 hypandrium and postgonite, ventral 180 external genitalia, ventral 181 hypandrial complex, left lateral 182 phallus, ventral.