Phytomyza plantaginis Robineau-Desvoidy

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 : 80-82

Phytomyza plantaginis Robineau-Desvoidy

( Figs. 253–256 , 628–633 )

Material examined: Ukraine: Transcarpatia: 16 km NW Mukachevo , 48°33’N 22°34’E, 27–29.viii.2016, V. V. Roshko (1♂ 1♀) ; Vinnytsa Region: Chechelnyk , 48°12’N, 29°20’E, 8.v.2019, Yu. Guglya (1♂) ; Sumy Region: Trostyanets , 50°28’N, 34°55’E, 15.vi.2013, Yu. Guglya (1♂) ; Kuzemin, The National Nature Park ”Getman- skyi”, 50°08’N, 34°40’E, 20.iv.2014, Yu. Guglya (1♂) ; Kharkiv Region: Kharkiv, City Centre , 50°00’N, 36°14’E, 12.vi.2011, Yu. Guglya, ex Plantago major (6♂ 4♀) ; same locality, 20–25.v.2020, Yu. Guglya, ex Plantago major (1♂ 2♀) ; same locality, 14–17.vi.2020, Yu. Guglya, ex Plantago major (6♂ 3♀) ; near Rubizhne , 50°10’N, 36°47’E, 21.v.2017, Yu. Guglya (1♂ 1♀) .

Hosts. Plantaginaceae : Plantago spp. ( Spencer 1990) .

Mine. ( Figs. 253, 254 ) The larva forms a narrow irregular linear leaf mine, mainly on the upper surface. Pupation takes place within the mine.

Puparium. ( Figs. 255, 256 ) Colourless, translucent, with blackish-brown anterior and posterior spiracles, 2.5 mm long, with distinct segmentation; surface quite smooth except for narrow bands of minute spines. Posterior spiracles set on short, stout, conical protuberances and entirely separate; with nine sessile bulbs set in a kidney-like configuration. Anal plate slightly protruding above the surface of the puparium viewed from the side and directed ventro-posteriorly.

Cephalopharyngeal skeleton. ( Fig. 628 ) Right mouthhook slightly larger than the left, each bearing two wide accessory teeth. Intermediate sclerite short and slightly curved, with narrow, sharp protuberance located ventrally; sclerite 1.08× as long as maximum height of left mouthhook. The mouthhook and the intermediate sclerite ventrally are strongly sclerotized; the intermediate sclerite dorsally and the pharyngeal sclerite are much less so. The ventral cornu bears a narrow “closed” window located centrally. Indentation index 80. See also in Sasakawa (1961: Fig. 140 l ).

Female head. ( Figs. 629, 630 ) Yellow, with only arista, pped, oc tr and postgena black, outer surface of pedicel brown; orbit distinctly projecting above eye in profile; 2 orb s, 1 fr s; lunule broad, low, semicircular, reaching the level of fr s; pped large, elongated; gena medially 0.34× as high as maximum height of eye.

Female genitalia. ( Figs. 631–633 ) Capsule of spermatheca relatively small, 0.17× as high as height of anterior part of oviscape. Spermathecae equal in size, brown, flattened basally and apically, wider than high, with surface corrugated. Internal duct invagination cylindrical, 0.66× as deep as height of spermatheca. Spermathecal duct weakly sclerotized. Ventral receptacle compressed S-shaped, with weakly sclerotized tail that is bowl-shaped in basal half. Body of receptacle spherical with uniformly curved basal connecting tube, strongly sclerotized, 0.75× as wide as capsule of spermatheca; with opening located on narrow projection, 0.68× as wide as diameter of spherical part of body. Proctiger see in Sasakawa (1961: Fig. 140 h ).

Distribution. Holarctic, Neotropical, Oriental and Australian Regions ( Papp & Černý 2019). Ukraine (first record).

Figures

FIGURES 253–260. Figures 253–256: Phytomyza plantaginis Robineau-Desvoidy; 253–254: mines in Plantago major leaf; 253: on upper leaf side; 254: on lower leaf side with puparia; 255: empty puparium viewed from the side; 256: posterior segments of puparium (posterior view). Figures 257–260: P. torilisi spec. nov.; 257: mines in Torilis japonica leaf; 258–259: posterior segments of puparium; 258: lateral view; 259: posterior view. 260: posterior spiracles (posterior view).

FIGURES 628–633. Phytomyza plantaginis Robineau-Desvoidy; 628: cephalopharyngeal skeleton; 629: frontal view of head; 630: head viewed from the side; 631: oviscape, ventral receptacle and spermatheca proportionally; 632: spermatheca; 633: ventral receptacle.

FIGURES 138–149. Figures 138–142: Liriomyza bryoniae (Kaltenbach); 138–139: mines in Gypsophyla paniculata: 138: leaf and stem (indicated by arrow); 139: in leaf. 140–141: posterior segments of puparium; 140: lateral view; 141: posterior view. 142: posterior spiracles (posterior view). Figures 143–146: L. cicerina (Rondani); 143: mines in Cicer arietinum leaf; 144–145: posterior segments of puparium; 144: lateral view; 145: posterior view. 146: posterior spiracles (posterior view). Figures 147–149: L. congesta (Becker); 147–148: posterior segments of puparium; 147: lateral view; 148: posterior view. 149: posterior spiracles (posterior view).