Phytomyza spondylii heracleiphaga Spencer

Eiseman, Charles S. & Lonsdale, Owen, 2018, New state and host records for Agromyzidae (Diptera) in the United States, with the description of thirty new species, Zootaxa 4479 (1), pp. 1-156 : 84

Phytomyza spondylii heracleiphaga Spencer

( Fig. 207 )

Material examined. MASSACHUSETTS: Nantucket Co., Nantucket , Abrams Point , 30.v.2012, em. by 24.vi.2012, J . A. Blyth , ex Heracleum maximum (1♂) .

Host. Apiaceae : Heracleum maximum W. Bartram.

Leaf mine. ( Fig. 207 ) A white, upper surface, linear mine, with frass in closely spaced grains along the margins. Spencer (1969) considered the life history information from California presented by Tauber and Tauber (1968) for Phytomyza lanati Spencer actually to refer to this species. Griffiths (1973) doubted this because Tauber and Tauber reported the mine length to be 25–29.5 cm, over twice the length of the 6–10 cm mines from which he reared his Alaskan specimens. However, our Massachusetts specimens were indeed reared from mines over 20 cm long.

Puparium. Brown or black, strongly arched, with intersegmental boundaries distinctly impressed; formed outside the mine ( Griffiths 1973).

Distribution. USA: AK, CA, *MA. Canadian records given by Spencer (1969) refer to Phytomyza pastinacae Hendel ( Griffiths 1973) .

Figures

FIGURES 200–207. leaf mines; 200: Phytomyza persicae Frick in Prunus persica (transmitted light; puparium at bottom left); 201: P. plumiseta (Frost) in Thalictrum pubescens; 202: P. ranunculi (Schrank) in Ranunculus repens; 203: P. sempervirentis spec. nov. in Lonicera sempervirens, young mines; 204: same, completed mines; 205: P. solidaginivora Spencer in Doellingeria umbellata; 206: P. solidaginophaga Sehgal in Solidago rugosa; 207: P. spondylii heracleiphaga Spencer in Heracleum maximum (transmitted light).