Liriomyza philadelphivora Spencer, 1969

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 philadelphivora Spencer

Figs 612-615

Liriomyza philadelphivora Spencer, 1969: 182. Spencer and Steyskal 1986b: 291; Scheffer et al. 2007: 772; Lonsdale 2017: 73; Scheffer and Lonsdale 2018: 87.

Description.

Wing length 1.8-2.0 mm (♂), 2.0-2.3 mm (♀). Length of ultimate section of vein M4 divided by penultimate section: 2.0-2.3. Eye height divided by gena height: 4.6-4.8. Notum shiny to subshiny.

Chaetotaxy: Two ori (three on left side in holotype); two ors. Acrostichal setulae in four rows.

Colouration: Head yellow, with back of head (excluding margin) brown, and small medial spot on ocellar tubercle brown with stripes extending to inner margin of ocelli. Scutum dark brown with lateral margins yellow and posterior margin yellow, including large subquadrate region anterior to scutellum; posterolateral margin of brown spot with one pair of rounded extensions on each side, suggesting underlying vittate pattern similar to that seen in L. blechi . Scutellum and metanotum yellow with mediotergite brown. Pleuron yellow with ventral 1/2 of katepisternum and meron dark brown. Calypter margin dark. Legs yellow with brownish tint on mid and hind tibiae (darker on hind leg). Abdomen yellow with epandrium and ill-defined dorsomedial stripe brown.

Genitalia: (Figs 612-615 ) Epandrium with one posterodistal spine. Surstylus with three dorsal setae and no spine; produced ventrally into long, pointed, outwardly curved process. Basiphallus sclerotised on dorsal and left lateral surfaces, with left distal margin produced past distiphallus as strong lobe. Hypophallus linear, narrow and pointed. Mesophallus narrow, dark, slightly longer than high or wide, with sides of ventral suture produced as irregular carina. Distiphallus cup-like, pale (darker laterally), widest medially and slightly compressed dorsoventrally.

Hosts.

Hydrangeaceae - Philadelphus spp.

Distribution.

Canada: ON. USA: DC, NY.

Type material.

Holotype: Canada. ON: Ottawa, em. 4.vii.1962 ex. Philadelphus (1♂, CNC).

Additional material examined.

Canada. ON: Ottawa , Central Experimental Farm, adult on Philadelphus sp., 8.vi.2017, O. Lonsdale, CNC799487 (1♀, CNC). Also see Lonsdale (2017) .

Figures

Figures 612 - 615. Liriomyza philadelphivora (Kaltenbach), male genitalia 612 external genitalia, ventral 613 external genitalia, left lateral 614 hypandrial complex, left lateral 615 phallus, ventral. Originally published in Lonsdale (2017).