Agromyza albipennis Meigen

Guglya, Yuliia, 2021, Rearing mining flies (Diptera: Agromyzidae) from host plants as an instrument for associating females with males, with the description of seven new species, Zootaxa 5014 (1), pp. 1-158 : 9

Agromyza albipennis Meigen

( Figs. 5–8 , 291–294 )

Material examined: Ukraine: Kharkiv Region: near Petrivske, 49°10’N, 36°58’E, 7, 9.vii.2020, Yu. Guglya, ex Elytrigia repens (1♂ 1♀). The rest of material see in Guglya (2012, 2020).

Hosts. Poaceae : Agrostis L., Arrhenatherum P. Beauv. , Brachypodium P. Beauv. , Bromus L., Calamagrostis Adans. , Dactylis L., Deschampsia P. Beauv. , Festuca Tourn. ex L., Glyceria R. Br. , Hordeum L., Milium L., Phalaris L., Phleum L., Poa L., Secale L., Setaria P. Beauv , Triticum L. ( Benavent-Corai et al. 2005). Holcus L., Molinia Schrank , Trisetum Pers. ( Warrington 2021) . Elytrigia repens —a newly recorded host plant.

Mine. ( Fig. 5 ) The solitary larva forms white linear-blotch leaf mine. Pupation takes place outside the mine attaching to the leaf surface.

Puparium. ( Figs. 6–8 ) Brown, glossy, 3.0 mm long, with deep segmentation; surface quite smooth except for two-row spine bands. Both posterior spiracles are set on one stout conical protuberant mounting; black, with three elongated bulbs set in a circular configuration at acute angles to each other. Anal plate black, not protruding above the surface of the puparium viewed from the side and directed ventrally.

Cephalopharyngeal skeleton. ( Fig. 291 ) Both mouthhooks equal in size and shape, with sharp abducted portion directed ventro-anteriorly. Each mouthhook bears four accessory teeth. Intermediate sclerite long and narrow, well sclerotized, 1.35× as long as height of mouthhook. Dorsal and ventral cornua bear wide and long “closed” windows sharply narrowing posteriorly. The pharyngeal sclerite is less sclerotized than the intermediate sclerite. Indentation index 87. See also in Sasakawa (1961: Fig. 1 l ).

Female head. ( Figs. 292, 293 ) Brownish-black, with orbit not projecting above eye in profile, 2 orb s, 2 fr s and low, largerly semicircular lunule with furrow, reaching the level of the anterior fr s; pped of medium size, concave ventrally; gena medially 0.18× as high as maximum height of eye.

Female genitalia. ( Fig. 294 ) Spermathecae unequal in size, dark brown, spherical and flattened basally. Internal duct invagination wide and deep, 0.75× as deep as height of spermatheca. Neck of spermatheca tubular-shaped, long, 0.65× as long as height of spermathecae and narrowing near the spermatheca base. Proctiger and egg guide see in Sasakawa (1961: Fig. 1 h, g ).

Distribution. Widespread in Palaearctic and Nearctic Regions ( Papp & Černý 2015). In Ukraine known from Transcarpathia and Kharkiv Region ( Guglya 2012, 2020).

Figures

FIGURES 1–8. Figures 1–4: Agromyza abiens Zetterstedt; 1: mine in Cynoglossum officinale leaf; 2–3: posterior segments of puparium; 2: lateral view; 3: posterior view. 4: posterior spiracles (posterior view). Figures 5–8: A. albipennis Meigen; 5: mine with larva (indicated by arrow) in Elymus repens leaf; 6–7: posterior segments of puparium; 6: lateral view; 7: posterior view. 8: posterior spiracles (posterior view).

FIGURES 287–294. Figures 287–290: Agromyza abiens Zetterstedt; 287: cephalopharyngeal skeleton; 288: frontal view of head; 289: head viewed from the side; 290: spermatheca. Figures 291–294: A. albipennis Meigen; 291: cephalopharyngeal skeleton; 292: frontal view of head; 293: head viewed from the side; 294: spermathecae.