Phytomyza ilicis Curtis
Creators: name: Guglya, Yuliia
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Agromyzidae
Phytomyza
Phytomyza ilicis

description: Phytomyza ilicis Curtis   
(Figs. 202–206, 577–581)  
 Material examined: The Netherlands: Gelderland: Wageningen, 51°59’N, 5°40’E, 11–15.iv.2019, A. Gumovsky, ex Ilex aquifolium (9♂ 7♀).   
 Host. Aquifoliaceae: Ilex aquifolium L. (Spencer 1990).   
 Mine. (Fig. 202) The solitary larva forms a reddish-yellow upper surface blotch mine. Normally, the mine is scarcely visible from the underside of the leaf. Pupation takes place within the mine, mainly on underside of the leaf, in a “pupal blister” (Fig. 203).   
 Puparium. (Figs. 204–206) Orange-brown, glossy, 3.6 mm long, with distinct but shallow segmentation; surface quite smooth except for wide bands of fine spines and the last two abdominal segments finely wrinkled. Posterior spiracles set on short conical protuberances that are entirely separate; black, glossy, with several fine sessile bulbs arranged in irregular group. Anal plate distinctly protruding above the surface of the puparium viewed from the side and directed ventro-posteriorly.   
 Cephalopharyngeal skeleton. (Fig. 577) Right mouthhook larger than the left, each rounded ventrally and bearing two accessory teeth strongly different in size. Intermediate sclerite long and straight, 1.3× as long as maximum height of left mouthhook. The mouthhook, most of the intermediate sclerite and the dorsal cornu centrally are strongly sclerotized; the intermediate sclerite dorsally, the ventral cornu and the dorsal cornu dorso-anteriorly and ventrally are much less so. The ventral cornu bears a small, narrow “closed” window in the posterior half. Indentation index 82.   
 Female head. (Figs. 578, 579) Yellowish-brown, with only antenna and postgena brown; orbit not projecting above eye in profile; 3 orb s, 2 fr s; lunule of medium height, narrowing posteriorly, reaching the level between the 1 st and the 2 nd orb s; pped of medium size, rounded; gena medially 0.3× as high as maximum height of eye.   
 Female genitalia. (Figs. 580, 581) Capsule of spermatheca relatively small, 0.14× as high as height of anterior part of oviscape. Spermathecae equal in size, brown, oval; smaller one with narrow rim-shaped basal collar. Spermathecal duct weakly sclerotized. Ventral receptacle compressed S-shaped, with well sclerotized taol that is two-bladed and widening apically. Body of ventral receptacle spherical with short, wide and sharply curved basal connecting tube, strongly sclerotized, 1.8× as wide as capsule of spermatheca; with opening 0.62× as wide as diameter of spherical part of body.   
 Distribution. Occurs in the Palaearctic in Belgium, British Isles, Denmark, France, Germany, Hungary, Ireland, Italy, Norway, Sweden Switzerland (Papp & Černý 2019), Sicily and the Netherlands (Pape 2014). In the Nearctic, it occurs in Canada and the United States (Papp & Černý 2019).
description: Published as part of 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, pp. 1-158 in Zootaxa 5014 (1) on pages 70-71, DOI: 10.11646/zootaxa.5014.1.1, http://zenodo.org/record/5158589