Liriomyza strigata (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 : 57-58

Liriomyza strigata (Meigen)

( Figs. 168–171 , 507–512 )

Material examined: Ukraine: Transcarpathia: Nova Stuzhytsa, Uzhanskyi National Park , 49°02’N, 22°34’E, 18– 21.ix.2019, Yu. Guglya, ex Campanula rapunculoides (1♂ 2♀) ; Luhy , 700 m a. s. l., 48°03’N, 24°29’E), 12.viii.2019, Yu. Guglya, ex Senecio nemorensis (1♀) ; Shyrokyi Luh , 550 m a. s. l., 48°18’N, 23°43’E, 18–19.vii.2017, Yu. Guglya (2♀) ; near Khust, Kyreshy , 48°11’N, 23°21’E, 25.vii.2017, Yu. Guglya (1♀) ; 4 km S Rakhiv , 48°01’N, 24°10’E, 20.vii.2017, Yu. Guglya (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, 7.v.2013, Yu. Guglya (3♂) ; Kharkiv Region: Kharkiv, City Centre , 50°00’N, 36°14’E, 20–29.vi.2020, Yu. Guglya, ex Campanula rapunculoides (3♂ 1♀) ; Velyka Danylivka , 50°01’N, 36°18’E, 24.x.2015, I. Moskalets, ex Sonchus asper (2♂ 4♀) ; Piatуkhatky , N Kharkiv, 50°05’N, 36°14’E, 21.vi.2017, Yu. Guglya, ex Heliopsis sp. (1♂ 2♀) ; near Petrivske , 49°10’N, 36°58’E, 28.iv.2019, Yu. Guglya (1♀) ; same locality, 12–14.vii.2020, Yu. Guglya, ex Crepis pannonica (2♀) ; same locality, 28–29.vii.2014, Yu. Gug- lya, ex Verbascum densiflorum (2♂ 1♀) ; same locality and host plant, 20.vi.2020 and 10–13.vii.2020, Yu. Guglya (15♂ 11♀) ; same locality, 29.vii.2011, Yu. Guglya, ex Verbascum officinale (1♂ 3♀) ; same locality, 24.viii.2013, Yu. Guglya, ex Cirsium vulgare (2 ♂ 4♀) ; same locality, 28.vi.2019, Yu. Guglya, ex Centaurea jacea (1♀) ; same locality, 20–22.vi.2020, Yu. Guglya, ex Hesperis matronalis (1♂ 2♀) ; same locality, 14.vii.2020, Yu. Guglya, ex Jacobaea erucifolia (1♂ 3♀) ; Haidary , 49°37’N, 36°19’E, 9.viii.2020, Yu. Guglya, ex Campanula rapunculoides (1♂ 2♀) ; same locality, 7.viii.2020, Yu. Guglya, ex Galeopsis bifida (1♀) ; near Rubizhne , 50°07’N, 36°46’E, 24.vi.2010, Yu. Guglya, ex Hieracium sp. (1♂ 1♀) ; same locality, 4–7.viii.2020, Yu. Guglya, ex Galeopsis bifida (2♂) ; Donetsk Region: Kryva Luka , 13 km SEE Lyman, 48°52’N, 37°54’E, 14.vi.2019, Yu. Guglya, ex Cirsium oleraceum (1♀) ; same locality, 16.ix.2018, Yu. Guglya, ex Cirsium vulgare (1♀) ; same locality, 12, 14.vi.2019, Yu. Guglya, ex Jacobaea erucifolia (2♂) .

Hosts. Highly polyphagous species infesting 220 genera of plants ( Benavent-Corai et al. 2005).

Mine. ( Fig. 168 ) The larva forms a white linear upper surface mine above the midrib or other veins. Pupation takes place outside the mine.

Puparium. ( Figs. 169–171 ) Yellowish-orange, translucent, glossy, 2.2 mm long, with distinct segmentation; surface quite smooth except for narrow spine bands and two last abdominal segments wrinkled. Posterior spiracles set on stout conical protuberances that are entirely separate; brown, with numerous minute sessile bulbs in a kidneyshaped arrangement. Anal plate brown, distinctly protruding above the surface of the puparium viewed from the side and directed ventro-posteriorly.

Cephalopharyngeal skeleton. ( Fig. 507 ) Right mouthhook larger than the left, each with rounded abducted portion directed ventrally and bearing two wide accessory teeth. Intermediate sclerite massive, 1.09× as long as maximum height of left mouthhook. The mouthhook, the intermediate sclerite centrally and ventrally and the pharyngeal sclerite anteriorly are strongly sclerotized, the intermediate sclerite dorsally and the rest of the pharyngeal sclerite much less so. The ventral cornu bears a small oval “closed” window anteriorly. Indentation index 87.

Female head. ( Figs. 508, 509 ) Yellow, with only arista, oc tr and postgena posteriorly black, pedicel and pped sometimes orange; orbit projecting above eye in profile; 2 orb s, 2 fr s; lunule of medium height, narrowing posteriorly, reaching the level of the anterior fr s; pped large, rounded; gena medially 0.3× as high as maximum height of eye.

Thorax viewed from the side. ( Fig. 510 a, b ) Mostly bright yellow, with kepst in ventral half, mr ventro-posteriorly and anatg black; pprn dorsally, anepm medially, kepst posteriorly and mtkepst bear elongated blackish spots; anepist ventrally with small black spot or distinctly darkned ventro-anteriorly. Calypter, margin and fringe grey. Cx 3 blackish-yellow proximally.

Female genitalia. ( Figs. 511, 512 ) Capsule of spermatheca relatively large, 0.5× as high as height of anterior part of oviscape. Spermathecae equal in size, dark brown, obovate. Spermathecal duct weakly sclerotized and entering the spermatheca parallel to one of the side of the spermatheca.

Distribution. Common in most European countries and in Inner Asia ( Papp & Černý 2017, Lonsdale 2017). Also common in Ukraine.

Figures

FIGURES 168–175. Figures 168–171: Liriomyza strigata (Meigen); 168: mine in Verbascum densiflorum leaf; 169–170: posterior segments of puparium; 169: lateral view; 170: posterior view. 171: posterior spiracles (posterior view). Figures 172–175: L. taraxaci Hering; 172: mine in Taraxacum officinale leaf; 173–174: posterior segments of puparium; 173: posterior view; 174: lateral view. 175: posterior spiracles (posterior view).

FIGURES 507–512. Liriomyza strigata (Meigen); 507: cephalopharyngeal skeleton; 508: frontal view of head; 509: head viewed from the side; 510 a–b: thorax viewed from the side; 511: oviscape and spermathecae proportionally; 512: spermatheca.