Cerodontha (Poemyza) phragmitidis Nowakowski

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 : 40

Cerodontha (Poemyza) phragmitidis Nowakowski

( Figs. 107–108 , 435–438 )

Material examined: Ukraine: Vinnytsa Region: Chechelnyk , 48°12’N, 29°20’E, 5.vii.2019, Yu. Guglya, ex Phragmites australis (1♂ 1♀) .

Host. Poaceae : Phtragmites australis (Cav.) Trin. ex Steud. ( Papp & Černý 2016) .

Mine. The solitary larva forms blotch mine. Pupation takes place within the mine.

Puparium. ( Figs. 107, 108 ) Black, glossy; 3.5 mm long, with distinct segmentation; surface smooth except for narrow wrinkled spine bands. Both posterior spiracles are set on a single narrow and long conical protuberance directed posteriorly; black, spherical and entirely separate. The puparium viewed from the side and above and posterior spiracles viewed from above are depicted in Nowakowski (1973: Fig. 227 ). Anal plate strongly protruding above the surface of the puparium viewed from the side and directed posteriorly.

Cephalopharyngeal skeleton. ( Fig. 435 ) Right mouthhook larger than the left, with ventro-anterior portion sharply abducted. Each mouthhook bears two narrow and sharp accessory teeth. Intermediate sclerite narrow, slightly curved, 1.66× as long as maximum height of left mouthhook. The mouthhook, intermediate sclerite and anterior portion of the pharyngeal sclerite are strongly sclerotized, dorsal and ventral cornua much less so. Indentation index 79. See also in Nowakowski (1973: Fig. 189 ).

Female head. ( Figs. 436, 437 ) Brown, with proboscis yellow; orbit distinctly projecting above eye in profile; 2 orb s, 4 fr s; lunule very high and dramatically narrow, reaching the level between the posterior fr s and the anterior orb s; pped of medium size, flattened ventrally; gena medially 0.17× as high as maximum height of eye.

Female genitalia. ( Fig. 438 ) Spermathecae equal in size, dark brown, spherical, flattened basally and apically, without basal collar. Neck of spermatheca cylindrical, more sclerotized near spermathecal duct, as high as wide. Spermathecal duct distinctly sclerotized.

Distribution. Palaearctic, widespread in Europe ( Papp & Černý 2016). Ukraine (first record).

Figures

FIGURES 104–111. Figures 104–106: Cerodontha (Poemyza) muscina (Meigen); 104: mine in Lolium giganteum leaf; 105– 106: posterior segments of puparium; 105: lateral view; 106: posterior view. Figures 107–108: C. (Poemyza) phragmitidis Nowakowski, posterior segments of puparium; 107: lateral view; 108: posterior view. Figures 109–111: C. (Poemyza) pygmaea (Meigen); 109: mine in Lolium giganteum leaf; 110–111: posterior segments of puparium; 110: lateral view; 111: posterior view.

FIGURES 431–438. Figures 431–434: Cerodontha (Poemyza) muscina (Meigen); 431: cephalopharyngeal skeleton; 432: frontal view of head; 433: head viewed from the side; 434: spermathecae. Figures 435–438: C. (P.) phragmitidis Nowakowski; 435: cephalopharyngeal skeleton; 436: frontal view of head; 437: head viewed from the side; 438: spermatheca.

FIGURES 221–235. Figures 221–225: Phytomyza nowakowskiana Beiger; 221–222: mine in Symphytum cordatum leaf; 223: empty puparium viewed from the side; 224: posterior segments of puparium (posterior view); 225: posterior spiracles (posterior view). Figures 226–230: P. pulmonaria Nowakowski, reared from Myosotis sparsiflora; 226: mine; 227: puparium in mine; 228: empty puparium viewed from the side; 229: posterior segments of puparium (posterior view); 230: posterior spiracles (posterior view). Figures 231–235: P. pulmonaria Nowakowski, reared from Symphytum asperum; 231: mines; 232: puparia in mine; 233: empty puparium viewed from the side; 234: posterior segments of puparium (posterior view); 235: posterior spiracles (posterior view).

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).