Liriomyza amoena (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 : 46-49

Liriomyza amoena (Meigen)

( Figs. 130–133 , 465–469 )

Material examined: Ukraine: Transcarpathia: “Skalka”, near Uzhhorod , 48°41’N, 22°24’E, 20.ix.2016, Yu. Guglya, ex Sambucus nigra (4 puparia) ; Uzhhorod , 48°37’N, 22°17’E, 24.ix.2016, Yu. Guglya, ex Sambucus nigra , (2 puparia) ; Kharkiv Region: near Haidary, The National Nature Park “Homilshanski Lisy”, 49°37’N, 36°19’E, 7.ix.2018, Yu. Guglya, ex Sambucus nigra (2♂ 1♀) ; same locality, 16.viii.2020, Yu. Guglya, ex Sambucus nigra (1♀) ; Dnipropetrovsk Region: near Vasylivka , 48°41’N, 35°35’E, 9.vii.2016, Yu. Guglya, ex Sambucus nigra (1♂) .

Hosts. Viburnaceae : Sambucus spp. ( Benavent-Corai et al. 2005).

Mine. ( Fig. 130 ) The solitary larva forms a greenish linear-blotch mine that often adjoins the leaf margin. Pupation takes place outside the mine, in the soil.

Puparium. ( Figs. 131–133 ) Brownish-orange, semi-glossy, 2.0 mm long, with deep segmentation; surface quite smooth except for narrow spine bands. Posterior spiracles set on wide and very short conical protuberances that are entirely separate; black, with ten minute sessile bulbs arranged in a semicircle. Anal plate blackish-brown, not protruding above the surface of the puparium viewed from the side and directed ventro-posteriorly.

Cephalopharyngeal skeleton. ( Fig. 465 ) Left mouthhook is slightly larger than the right, each bearing two accessory teeth. Intermediate sclerite short, 0.57× as long as maximum height of left mouthhook. The mouthhook, most of the intermediate sclerite, and anterior portion of the dorsal cornu are strongly sclerotized; the intermediate sclerite dorso-anteriorly, posterior portion of the dorsal cornu and the ventral cornu are much less so. Indentation index 88. See also in Sasakawa (1961: Fig. 69 l ).

Female head. ( Figs. 466, 467 ) Yellow, with only arista, oc tr and hind margin of eye brown; orbit not projecting above eye in profile; 2 orb s, 2 fr s; lunule high, narrowing posteriorly, reaching the level of the posterior fr s; pped small, rounded; gena medially 0.2× as high as maximum height of eye.

Thorax viewed from the side. ( Fig. 468 ) Mostly bright yellow, with kepst in ventral two-thirds, mr ventroposteriorly and anatg black; pprn dorsally, anepist ventrally, anepm medially and mtkepst ventrally and posteriorly bear elongated blackish spots. Calypter brown, with black margin and yellow fringe. Cx 3 blackish-yellow.

Female genitalia. ( Fig. 469 ) Capsule of spermatheca relatively large, 0.44× as high as height of anterior part of oviscape. Spermathecae equal in size, light brown, spherical, with small invagination near base and with narrow rim-shaped scarcely visible basal collar. Spermathecal duct weakly sclerotized. Proctiger see in Sasakawa (1961: Fig. 69 h ).

Distribution. Palaearctic ( Papp & Černý 2017). Ukraine (first record).

Comments. In Ukraine reared material is only from four localities, but empty mines were also found in Vinnytsa, Sumy, Kyiv and Poltava Regions. Except L. amoena , Liriomyza huidobrensis (Blanchard) is the only pest registered on Sambucus in Guatemala (Wientraub et al. 2017). The mine pattern of this species rather differs from that of L. amoena , linear, running along ribs. L. huidobrensis is not registered in Ukraine yet.

Figures

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.

FIGURES 465–469. Figures 465–469: Liriomyza amoena (Meigen); 465: cephalopharyngeal skeleton; 466: frontal view of head; 467: head viewed from the side; 468: thorax viewed from the side; 469: oviscape and spermathecae proportionally.

FIGURES 67–74. Figures 67–70: Amauromyza (Cephalomyza) flavifrons (Meigen); 67: mine in Silene latifolia subsp. alba leaf; 68–69: posterior segments of puparium; 68: lateral view; 69: posterior view. 70: posterior spiracles (posterior view). Figures 71–74: Aulagromyza populi (Kaltenbach); 71: mines in Populus nigra leaf; 72–73: posterior segments of puparium; 72: lateral view; 73: posterior view. 74: posterior spiracles (posterior view).