Phytomyza lappae Goureau

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 : 71

Phytomyza lappae Goureau

( Figs. 207–210 , 582–587 )

Material examined: Ukraine: Transcarpathia: 4 km E Dilove , 48°55’N, 24°14’E, 420 m a. s. l., 14.06.2017, Yu. Guglya (1♂) ; Khmelnytskyi Region: Kamianets-Podilskyi , 48°40’N, 26°33’E, 9.vi.2016, Yu. Guglya, ex Arctium sp. (1♂) ; Poltava Region: near Luchky , 48°57’N, 34°09’E, 2.vi.2016, Yu. Guglya, ex Arctium sp. (1♀) ; Kharkiv Region: Kharkiv, City Centre , 50°00’N, 36°14’E, 8, 20.vi.2016, Yu. Guglya, ex Arctium sp. (2♂ 2♀) ; near Kovpak- ivka, 49°09’N, 35°01’E, 9–10.vii.2010, Yu. Guglya, ex Arctium sp. (6♂ 2♀); Donetsk Region: Kryva Luka , 13 km SEE Lyman, 48°52’N, 37°54’E, 13.ix.2018, 1.vi.2019, Yu. Guglya, ex Arctium sp. (2 puparia) .

Hosts. Asteraceae : Arctium lappa L., A. minus (Hill) Bernh. , A. tomentosum Mill. ( Spencer 1976) .

Mine. ( Fig. 207 ) The solitary larva forms a white irregular linear upper surface leaf mine. Very often a single leaf contains numerous larvae. Pupation takes place outside the mine in the soil.

Puparium. ( Figs. 208–210 ) Greyish-brown, semi-glossy, 2.2 mm long, with distinct but shallow segmentation; surface finely wrinkled except for narrow band of fine spines. Posterior spiracles set flat on the body cuticle and entirely separate; black, glossy, with twenty fine sessile bulbs set in an elliptical configuration. Anal plate greyishbrown, slightly protruding above the surface of the puparium viewed from the side and directed ventro-posteriorly.

Cephalopharyngeal skeleton. ( Fig. 582 ) Right mouthhook larger than the left, each bearing two accessory teeth strongly different in size: both teeth long and narrow in the right hook and much shorter and wider in the left hook. Intermediate sclerite long and slightly curved, 1.94× as long as maximum height of left mouthhook. The mouthhook, intermediate sclerite and most of the dorsal cornu are strongly sclerotized, the rest of the pharyngeal sclerite is much less. The ventral cornu bears a small “closed” window located centrally. Indentation index 81. See also in Sasakawa (1961: Fig. 132 l ).

Female head. ( Figs. 583, 584 ) Yellow, with only oc tr, antenna, palpus, postgena posteriorly and hind margin of eye brown; orbit not projecting above eye in profile; 2 orb s, 2 fr s; lunule broad, high, semicircular, reaching the level of the posterior fr s; pped small, slightly longer than high; gena medially 0.2× as high as maximum height of eye.

Female genitalia. ( Figs. 585–587 ) Capsule of spermatheca relatively small, 0.17× as high as height of anterior part of oviscape. Spermathecae equal in size, brown, trapezoid, wider than high. Internal duct invagination trapezoid, 0.7× as deep as height of spermatheca. Spermathecal duct weakly sclerotized. Ventral receptacle flattened S-shaped, with thin, weakly sclerotized tail. Body of receptacle flattened oval with slightly curved basal connecting tube, strongly sclerotized, 1.04× as wide as maximum diameter of spermatheca; with opening 0.64× as wide as diameter of spherical part of body. Proctiger see in Sasakawa (1961: Fig. 132 h ).

Distribution. Occurs in 21 European countries and also in Turkey, Israel, Kamchatka ( Russia) and Japan ( Papp & Černý 2019). Ukraine (first record).

Comments. In Ukraine seems to be common.

Figures

FIGURES 202–210. Figures 202–206: Phytomyza ilicis Curtis; 202: mines in Ilex aquifolium leaf; 203: “pupal blister” with puparium; 204–205: posterior segments of puparium; 204: lateral view; 205: posterior view. 206: posterior spiracles (posterior view). Figures 207–210: P. lappae Goureau; 207: mines in Arctium lappae leaf; 208–209: posterior segments of puparium; 208: lateral view; 209: posterior view. 210: posterior spiracles (posterior view).

FIGURES 582–587. Phytomyza lappae Goureau; 582: cephalopharyngeal skeleton; 583: frontal view of head; 584: head viewed from the side; 585: oviscape and spermathecae proportionally; 586: spermatheca; 587: ventral receptacle.

FIGURES 130–137. Figures 130–133: Liriomyza amoena (Meigen); 130: mine in Sambucus nigra leaf; 131–132: posterior segments of puparium; 131: lateral view; 132: posterior view. 133: posterior spiracles (posterior view). Figures 134–137: Liriomyza tropaeoli spec. nov.; 134: mine in Tropaeolum majus leaf; 135: “pupal blisters” with puparia; 136–137: posterior segments of puparium; 136: lateral view; 137: posterior view.