Phytomyza aurei Hering

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 : 66-68

Phytomyza aurei Hering

( Figs. 189–193 , 561–566 )

Material examined: Ukraine: Transcarpathia: Uzhhorod , 48°37’N, 22°17’E, 19.ix.2017 —mines collected, 9.x.2017 —imago, Yu.Guglya, ex Chaerophyllum aromaticum (1♂ 2♀) ; “Skalka”, near Uzhhorod , 48°41’N, 22°24’E, 17.ix.2016 —mine collected, 11–13.iii.2017, Yu. Guglya, ex Chaerophyllum aromaticum (2♀) ; Shyrokyi Luh , 550 m a. s. l., 48°18’N, 23°43’E, 19.vii.2017, Yu. Guglya (1♂) ; Nova Stuzhytsa , 49°02’N, 22°34’E, 06.vii.2019, Yu. Guglya (1♂) ; Vinnytsa Region: near Chechelnyk, location Vyshenka , 48°10’N, 29°20’E, 1.vii.2019, Yu. Guglya (1♀) .

Hosts. Apiaceae : Chaerophyllum aromaticum L., Ch. aureum L., Ch. hirsutum L., Conium maculatum L. ( Papp & Černý 2019).

Mine. ( Fig. 189 ) The solitary larva forms a narrow serpentine upper surface mine. The exit slit is on the lower leaf surface. Pupation takes place outside the mine but with the puparium attached to the lower leaf surface ( Fig. 190 ).

Puparium. ( Figs. 191–193 ) Greyish-brown, semi-glossy, 2.0 mm long, with shallow but distinctly visible segmentation; surface quite smooth except for wide bands of fine spines. Posterior spiracles set flat on the body cuticle and entirely separate; black, with sixteen fine sessile bulbs in an elliptical configuration. Ventral portion of last abdominal segment not protruding posteriorly viewed from the side. Anal plate directed ventro-posteriorly.

Cephalopharyngeal skeleton. ( Fig. 561 ) Right mouthhook much larger than the left, each with distinct round- ed abducted portion directed ventrally and bearing two accessory teeth. Intermediate sclerite long and straight, 1.6× as long as maximum height of left mouthhook. Mouthhook and most of intermediate sclerite strongly sclerotized; pharyngeal sclerite much less so. Indentation index 88.

Female head. ( Figs. 562, 563 ) Dark brown, with only proboscis yellow; orbit not projecting above eye in profile; 2 orb s, 1 fr s; lunule of medium height, broad, semicircular, reaching the level of fr s; pped large, flattened apically; gena medially 0.3× as high as maximum height of eye.

Female genitalia. ( Figs. 564–566 ) Capsule of spermatheca relatively small, 0.16× as high as height of anterior part of oviscape. Spermathecae equal in size, brown, with slightly corrugated surface, flattened basally, wider than high. Internal duct invagination is cylindrical, 0.77× as deep as height of spermatheca. Spermathecal duct weakly sclerotized. Ventral receptacle flattened S-shaped, with well sclerotized tail that is bowl-shaped in basal half. Body of receptacle hemispherical with slightly curved basal connecting tube, strongly sclerotized, equal in diameter with spermatheca; with opening 0.86× as wide as diameter of spherical part of body.

Distribution. The Czech Republic, Germany, Lithuania, Poland, Slovakia, Switzerland, Turkey ( Papp & Černý 2019). Ukraine (first record).

Figures

FIGURES 185–193. Figures 185–188: P. artemisivora Spencer; 185: mine with larva (indicated by arrow) in Artemisia vulgaris leaf; 186–187: posterior segments of puparium; 186: lateral view; 187: posterior view. 188: posterior spiracles (posterior view). Figures 189–193: P. aurei Hering; 189: mines in Chaerophyllum aromaticum leaf; 190: puparium on lower leaf surface; 191–192: posterior segments of puparium; 191: lateral view; 192: posterior view. 193: posterior spiracles (posterior view).

FIGURES 561–566. Phytomyza aurei Hering; 561: cephalopharyngeal skeleton; 562: frontal view of head; 563: head viewed from the side; 564: oviscape, ventral receptacle and spermathecae proportionally; 565: spermatheca; 566: ventral receptacle.