Phytomyza sedicola 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 : 84-85

Phytomyza sedicola Hering

( Figs. 265–269 , 646–651 )

Material examined: Ukraine: Kyiv Region: Kyiv, Trukhaniv Island , 50°28’14”N, 30°32’52”E, 24.vii.2019, Yu .

Guglya, ex Hylotelephium telephium (2 puparia); Kyiv, Irpin , 50°30’N, 30°15’E, 21.vii.2019 Yu. Guglya, ex Hylotelephium telephium (4 puparia) ; Kharkiv Region: near Petrivske , 49°10’N, 36°58’E, 25.vii.2015, 30.viii.2019, Yu. Guglya, ex Hylotelephium telephium (8♂ 6♀) .

Hosts. Crassulaceae : Cotyledon Toum. ex L., Sedum L. ( Benavent-Corai et al. 2005). Hylotelephium telephium (L.) H. Ohba—a newly recorded host plant.

Mine. ( Figs. 265 ) The solitary larva forms a reddish-yellow irregular linear upper surface leaf mine. Normally several larvae develop in one leaf. Pupation takes place within the mine on the underside of the leaf, in a “pupal blister” ( Fig. 266 ).

Puparium. ( Figs. 267–269 ) Greyish-brown, glossy, 2.5 mm long, with deep segmentation; surface finely wrinkled except for bands of narrow fine spines. Posterior spiracles set on stout conical protuberances that are entirely separate; black, glossy, with minute spherical sessile bulbs arranged in open ring. Anal plate yellow, distinctly protruding above the surface of the puparium viewed from the side and directed ventro-posteriorly.

Cephalopharyngeal skeleton. ( Fig. 646 ) Right mouthhook larger than the left, each bearing two accessory teeth. Intermediate sclerite short, with small, sharp protuberance located ventrally; sclerite 0.92× as long as maximum height of left mouthhook. The mouthhook and intermediate sclerite are strongly sclerotized and the pharyngeal sclerite is much less so. The ventral cornu bears a large, oval “closed” window located anteriorly. Indentation index 85.

Female head. ( Figs. 647, 648 ) Brownish-black, with orbit near frons, frons, and gena yellowish-brown, proboscis yellow; orbit not projecting above eye in profile; 1 orb s, 2 fr s; lunule broad, semicircular, reaching the level of the anterior fr s; pped of medium size, flattened anteriorly; gena medially 0.3× as high as maximum height of eye.

Female genitalia. ( Figs. 649–651 ) Capsule of spermatheca relatively small, 0.13× as high as height of anterior part of oviscape. Spermathecae equal in size, brown, flattened basally and slightly concave apically, wider than high. Internal duct invagination cylindrical, widening medially, 0.6× as deep as maximum height of spermatheca. Spermathecal duct weakly sclerotized. Ventral receptacle flattened S-shaped, with well sclerotized tail that is bowlshaped basally. Body of receptacle spherical with slightly curved basal connecting tube, strongly sclerotized, 1.15× as wide as capsule of spermatheca; with opening 0.56× as wide as diameter of spherical part of body.

Distribution. Palaearctic Region: Andorra, Austria, British Isles, the Czech Republic, Denmark, Finland, France, Germany, Hungary, Italy, Lithuania, Norway, Poland, Romania, Sweden, Switzerland ( Papp & Černý 2019), Slovakia ( Černý & Roháček 2020). Oriental Region ( India) ( Papp & Černý 2019), Korea ( Kwon et al. 2009). Ukraine (first record).

Figures

FIGURES 261–269. Figures 261–264: Phytomyza ranunculi (Schrank); 261: mines in Ranunculus repens leaf; 262–263: posterior segments of puparium; 262: lateral view; 263: posterior view; 264: posterior spiracles (posterior view). Figures 265–269: P. sedicola Hering; 265: mines in Hylotelephium telephium leaf; 266: “pupal blister” with puparium; 267–268: posterior segments of puparium; 267: lateral view; 268: posterior view; 269: posterior spiracles (posterior view).

FIGURES 646–651. Phytomyza sedicola Hering; 646: cephalopharyngeal skeleton; 647: frontal view of head; 648: head viewed from the side; 649: oviscape, ventral receptacle and spermatheca proportionally; 650: spermatheca; 651: ventral receptacle proportionally.