Phytomyza pastinacae Hendel

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 : 79

Phytomyza pastinacae Hendel

( Figs. 245–248 , 617–621 )

Material examined: Ukraine: Kyiv Region: Bila Tserkva, “Alexandryia” Park , 49°48’N, 30°04’E, 4.vii.2015, Yu. Guglya, ex Heracleum sphondilium (1♂) ; Kharkiv Region: Velyka Danylivka, Kharkiv , 50°01’N, 36°18’E, iii.2016, I. Moskalets, ex Pastinaca sativa (3♀) ; Russia, Moscow Region: Moscow , 55°43’N, 37°52’E, 5.x.2017, I. Moskalets, ex Heracleum sphondilium (7♂ 7♀) .

Hosts. Apiaceae : Angelica L., Cicuta L., Conium L., Heracleum L., Levisticum Hill. , Pastinaca L. (Benavent- Corai et al. 2005), Astrantia L. ( Warrington 2021).

Mine. ( Fig. 245 ) The larva forms a white intestinally-coiled upper surface mine. Pupation takes place outside the mine in the soil.

Puparium. ( Figs. 246–248 ) Blackish-brown, glossy, 2.5 mm long, with shallow but distinct segmentation; surface quite smooth except for narrow bands of minute spines. Posterior spiracles set on short, stout, cylindrical protuberances and entirely separate; black, with 17 fine sessile bulbs set in a flattened elliptical configuration. Ventral portion of last abdominal segment strongly protruding posteriorly viewed from the side. Anal plate directed posteriorly.

Cephalopharyngeal skeleton. ( Fig. 617 ) Right mouthhook larger than the left, each with sharp abducted portion directed ventro-anteriorly and bearing two sharp accessory teeth. Intermediate sclerite long and straight, 1.87× as long as maximum height of left mouthhook. The mouthhook, the intermediate sclerite and the dorsal cornu centrally are strongly sclerotized; the dorsal cornu dorsally and ventrally and ventral cornu are much less so. The ventral cornu bears a “closed” window located centrally. Indentation index 85.

Female head. ( Figs. 618, 619 ) Whitish-yellow, with orbit near eye margin, face, antenna, palpus, oc tr and postgena black, frons yellow; orbit not projecting above eye in profile; 1 orb s, 2 fr s; lunule very broad, of medium height, semicircular, reaching the level of the posterior fr s; pped large, slightly longer than wide; gena medially 0.27× as high as maximum height of eye.

Female genitalia. ( Figs. 620, 621 ) Capsule of spermatheca relatively small, 0.15× as high as height of anterior part of oviscape. Spermathecae equal in size, brown, oval, flattened basally and obtuse apically. Internal duct invagination thimble-shaped, 0.55× as deep as height of spermatheca. Spermathecal duct weakly sclerotized. Ventral receptacle flattened S-shaped, with weakly sclerotized, narrow and strongly curved tail. Body of receptacle spherical with slightly curved basal connecting tube, strongly sclerotized, 0.92× as wide as capsule of spermatheca; with opening 0.56× as wide as diameter of spherical part of body.

Distribution. Have been listed from Palaearctic ( Austria, Belgium, British Isles, Bulgaria, the Czech Republic, France, Germany, Greece, Hungary, Latvia, Lithuania, Montenegro, Poland, Portugal, the Netherlands, Slovakia) and Nearctic Regions (The United States) ( Papp & Černý 2019). Russia ( Krivosheina 2012). Ukraine (first re- cord).

Figures

FIGURES 245–252. Figures 245–248: Phytomyza pastinacae Hendel; 245: mine in Pastinaca sativa leaf; 246: puparium (lateral view); 247: posterior segments of puparium (posterior view); 248: posterior spiracles (posterior view). Figures 249–252: P. pimpinellae Hendel; 249: mines in Pimpinella saxifrage leaf; 250: posterior segments of puparium viewed from the side; 251: posterior segments of puparium (posterior view); 252: posterior spiracles (posterior view).

FIGURES 617–621. Phytomyza pastinacae Hendel; 617: cephalopharyngeal skeleton; 618: frontal view of male head; 619: female head viewed from the side; 620: oviscape, ventral receptacle and spermathecae proportionally; 621 a–b: spermatheca and ventral receptacle proportionally; a: spermatheca; b: ventral receptacle.