Ophiomyia ultima (Spencer) Lonsdale, 2021

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

publication ID

https://dx.doi.org/10.3897/zookeys.1051.64603

publication LSID

lsid:zoobank.org:pub:639E252D-4392-4ABB-910B-CEA5D8AD2487

persistent identifier

https://treatment.plazi.org/id/62E929AF-9771-49D3-451E-BE4AA1C1554C

treatment provided by

ZooKeys by Pensoft

scientific name

Ophiomyia ultima (Spencer)
status

comb. nov.

Ophiomyia ultima (Spencer) comb. nov.

Figs 73 View Figures 69–77 , 74 View Figures 69–77 , 405-410 View Figures 405–410

Melanagromyza ultima Spencer in Spencer and Steyskal 1986b: 247.

Description

(Figs 73 View Figures 69–77 , 74 View Figures 69–77 ). Wing length 2.5 mm (♂). Female unknown. Length of ultimate section of vein M4 divided by penultimate section: 0.7. Eye height divided by gena height: 5.6-5.9. Facial carina virtually absent and without medial bulb. Ocellar triangle short, reaching between ori and ors, slightly subshiny with corners matt. Fronto-orbital plate subshiny, narrow with indistinct margins expanding to encompass base of setae. Gena receding, highest near or behind middle. Clypeus relatively stout with sides parallel.

Chaetotaxy: Male vibrissal fasciculus absent. Two ori; two ors. Mid tibia without posteromedial setae.

Colouration: Body, including halter dark brown with gena slightly paler. Wing veins brown. Calypter margin and hairs dark brown.

Genitalia: (Figs 405-410 View Figures 405–410 ) Surstylus fused to, and longer than epandrium, with several irregular rows of shorter, stout setae along inner surface. Single sclerite of basiphallus narrow, short, fused to dorsomedial margin, curved dextrally. Mesophallus stout, nearly as wide as distiphallus with apex narrower; attached to distiphallus within its slightly recessed base. Distiphallus cup-like, subrectangular in outline (ventral view), with inner surface minutely textured transversely medially with ventral longitudinal sclerotisations extending past apex and enclosing medial tubule; base with shallow lobate dorsolateral extensions. Blade of ejaculatory apodeme elongate oval with dark central rib and marginal striations.

Host.

Unknown.

Distribution.

Canada: ON*, QC*. USA: VA.

Type material.

Holotype: USA. VA: Giles Co., Stony Cross, 2000', 26.v.1962, J.R. Vockeroth (1♂, CNC).

Additional material examined.

Canada. ON: Wellington Co., Smith Property Trail nr. Arkell , 43°33'N, 80°11'W, 23.vi.2015, O. Lonsdale, CNC441149 (1♂, CNC), QC: Mt Rigaud, 45°27'54"N, 74°19'24"W, 8.vi.2018, B.J. Sinclair, CNC1706881 (1♂, CNC) GoogleMaps .

Comments.

Like other Ophiomyia , this species has a truncated clypeus, a very sparsely setose eye, and no posteromedial tibial setae, and unlike Melanagromyza , the basiphallus is asymmetrical and the ventrolateral tubules of the distiphallus are absent, although the base of the distiphallus is swollen on either side of the mesophallus to form superficially similar lobes. The surstylus and the shape and arrangement of the basiphallus, mesophallus and distiphallus are distinctive. This species is newly recorded for Canada.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Agromyzidae

Genus

Ophiomyia

Loc

Ophiomyia ultima (Spencer)

Lonsdale, Owen 2021
2021
Loc

Melanagromyza ultima

Lonsdale 2021
2021