Cerodontha (Dizygomyza) iraeos (Robineau-Desvoidy)

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 : 34

Cerodontha (Dizygomyza) iraeos (Robineau-Desvoidy)

( Figs. 89–93 , 412–415 )

Material examined: Ukraine: Transcarpathia: near Chop, flood land on the River Latoritsa Bank , 48°27’N, 22°12’E, 18.ix.2016 —mine with exuvium collected, Yu. Guglya, ex Iris pseudacorus (1 exuvium) ; Vinnytsa Region: Chechelnyk , 48°12’N, 29°20’E, 5.vii.2019, Yu. Guglya, ex Iris pseudacorus (2♂ 4♀) ; Donetsk Region: Kryva Luka , 13 km SEE Lyman, 48°52’N, 37°54’E, 7–12.vi.2019, Yu. Guglya, ex Iris pseudacorus (5♂ 3♀) .

Hosts. Iridaceae : Iris pseudacorus L. ( Spencer 1976), I. cristata Aiton ( Eiseman & Lonsdale 2018) , Gladiolus Tourn. ex L. and Typhaceae : Typha L. ( Warrington 2021).

Mine. ( Figs. 89 ) The larva forms a white linear mine on the upper side of the leaf. Frass normally appearing as a single black spot several (2–5) centimetres from puparium. Pupation takes place within the mine ( Fig. 90 ).

Puparium. ( Figs. 91–93 ) Orange viewed from above, reddish-brown viewed from the side and black viewed from below, glossy, 2.7 mm long, with weak segmentation; surface wrinkled except for wide spine bands. Both posterior spiracles orange, tube-shaped, set on a single wide trapezoidal protuberance in posterior view. Posterior spiracles viewed from the side are depicted in Nowakowski (1973: Fig. 260 ). Anal plate slightly protruding above the surface of the puparium viewed from the side and directed posteriorly.

Cephalopharyngeal skeleton. ( Fig. 412 ) Right mouthhook larger than the left, both with long finger-like abducted portion directed ventro-posteriorly. Each mouthhook bears two apically rounded accessory teeth. Intermediate sclerite long, narrow and waved, 1.33× as long as maximum height of the left mouthhook. The mouthhook and intermediate sclerite are strongly sclerotized, the pharyngeal sclerite much less so. Indentation index 84. See also in Nowakowski (1973: Fig. 218 ), Sasakawa (1961: Fig. 56 l ).

Female head. ( Figs. 413, 414 ) Yellowish-black, with antenna, palpus, oc tr and postgena black, proboscis yellow; orbit not projecting above eye in profile, 2 orb s, 2 fr s; lunule semicircular, reaching the level between fr s; pped large, flattened ventro-anteriorly; gena medially 0.15× as high as maximum height of eye.

Female genitalia. ( Fig. 415 ) Spermathecae equal in size, brown, concave apically, mushroom-shaped, 0.3× as high as maximum width. Neck of spermatheca conical, wider than long, narrowed in the direction of duct, 0.35× as long as maximum width. Spermathecal duct wide, crested, weakly sclerotized. Proctiger see in Sasakawa (1961: Fig. 56 h ).

Distribution. Widespread in Europe, Japan and South Korea ( Papp & Černý 2016); tentatively recorded from USA ( Eiseman & Lonsdale 2018). Ukraine (first record).

Figures

FIGURES 84–93. Figures 84–88: Cerodontha (Butomomyza) hreblensis spec. nov.; 84: mine with puparium (indicated by arrow) in Carex sp. leaf; 85: larva viewed from the side; 86–87: posterior segments of puparium; 86: lateral view; 87: posterior view. 88: posterior spiracles (posterior view). Figures 89–93: C. (Dizygomyza) iraeos (Robineau-Desvoidy); 89: mine in Iris pseudacorus leaf; 90: puparium (indicated by arrow) in I. pseudacorus; 91: empty puparium viewed from above; 92: posterior segments of puparium (posterior view). 93: posterior spiracles (posterior view).

FIGURES 412–420. Figures 412–415: Cerodontha (Dizygomyza) iraeos (Robineau-Desvoidy); 412: cephalopharyngeal skeleton; 413: frontal view of head; 414: head viewed from the side; 415: spermathecae. Figures 416–420: C. (Poemyza) incisa (Meigen); 416: cephalopharyngeal skeleton; 417: frontal view of head; 418: head viewed from the side; 419: oviscape and spermatheca proportionally; 420: spermatheca.

FIGURES 253–260. Figures 253–256: Phytomyza plantaginis Robineau-Desvoidy; 253–254: mines in Plantago major leaf; 253: on upper leaf side; 254: on lower leaf side with puparia; 255: empty puparium viewed from the side; 256: posterior segments of puparium (posterior view). Figures 257–260: P. torilisi spec. nov.; 257: mines in Torilis japonica leaf; 258–259: posterior segments of puparium; 258: lateral view; 259: posterior view. 260: posterior spiracles (posterior view).

FIGURES 211–220. Figures 211–215: Phytomyza lycopi Nowakowski; 211: mine in Lycopus europaeus leaf; 212: puparium (indicated by arrow) in mine; 213: empty puparium (lateral view); 214: posterior segments of puparium (posterior view); 215: posterior spiracles (posterior view). Figures 216–220: P. medicaginis Hendel; 216–217: mines in Pulmonaria mollis leaf; 216: initial mine with feeding larva (indicated by arrow); 217: fully developed; 218: empty puparium viewed from the side; 219: posterior segments of puparium (posterior view); 220: posterior spiracles (posterior view).

FIGURES 45–57. Figures 45–48: Amauromyza (A.) carlinae (Hering); 45: mines in Echinops sphaerocephalus leaf; 46–47: posterior segments of puparium; 46: lateral view; 47: posterior view. 48: posterior spiracles (posterior view). Figures 49–52: A. (A.) chamaebalani (Hering); 49: mine in Lathyrus sp. leaf; 50–51: posterior segments of puparium; 50: lateral view; 51: posterior view. 52: posterior spiracles (posterior view). Figures 53–57: Calycomyza artemisiae (Kaltenbach); 53–54: mines; 53: in Eupatorium cannabinum leaf; 54: in Artemisia vulgaris leaf; 55–56: posterior segments of puparium; 55: lateral view; 56: posterior view. 57: posterior spiracles (posterior view).