Ophiomyia kalia, 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

Ophiomyia kalia sp. nov.

Figs 351-355

Description.

Wing length 2.1 mm (♂), 2.0-2.3 (♀). Length of ultimate section of vein M4 divided by penultimate section: 0.7-1.0. Head largely collapsed in holotype. Eye height divided by gena height: 5.0-6.6. Frons entirely pruinose and ocellar triangle indistinct; gena rounded, not produced anteriorly and relatively narrow along entire length. Face with weak carina, barely dividing antennae. Clypeus with sides parallel.

Chaetotaxy: Orbital setulae reclinate. Male vibrissal fasciculus absent. Two ori (sometimes three on one side); two ors. Mid tibia without posteromedial setae. Six rows of acrostichal setulae.

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

Genitalia: Surstylus 1/2 length of epandrium, broadly rounded and with tubercle-like setae along inner-distal margin. Metepiphallus very small with serrated ridges and spines. Proepiphallus with dark patches in lateral extensions. Basiphallus curved in cross-section, ventrally curved and receding dorsomedially. Mesophallus broad, basal to distiphallus (not inserted ventromedially to distiphallus). Distiphallus straight, cup-like with internal folds. Ejaculatory apodeme large with blade pale and ovate, with pronounced medial rib.

Host.

Unknown.

Distribution.

USA: VA.

Etymology.

The specific epithet is Greek for bird nest, referring to the nest from where the holotype was collected.

Type material.

Holotype: USA. VA: Long Bridge, 22.v.1913, ex. birds nests Pun grackle, R.C. Shannon (1♂, USNM).

Paratypes: USA. VA: Fairfax Co., Turkey Run Park, nr. mouth of Turkey Run, 38°57.9'N, 7°09.4'W, Malaise trap, D.R. Smith, 18-30.v.2007 (1♂ 2♀, USNM; 2♀, CNC), 14-17.v.2006 (8♀, USNM; 2♂, CNC).

Comments.

The straight, highly simplified distiphallus of this species is characteristic, as is the basally inserted mesophallus, the large, pale ejaculatory apodeme, and narrow gena. Also see comments for Ophiomyia abutilivora .

Figures

Figures 351 - 355. Ophiomyia kalia Lonsdale, sp. nov., male genitalia 351 ejaculatory apodeme 352 hypandrium, ventral 353 hypandrial complex, left lateral 354 phallus and proepiphallus, ventral 355 external genitalia, ventral.