Phytomyza clematiphaga 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 : 69-70

Phytomyza clematiphaga Spencer

( Fig. 180 )

Material examined. COLORADO: Fremont Co., Bear Creek , Forest Rd. 101, off of 49 Rd., 7.vii.2015, em. 19– 22.vii.2015, C.S. Eiseman, ex Clematis hirsutissima var. scottii , #CSE1728, CNC654335 , CNC654336 (1♂ 1♀) .

Hosts. Ranunculaceae : Clematis columbiana (Nutt.) Torr. & A. Gray, C. * hirsutissima Pursh var. scottii (Porter) Erickson , C. occidentalis (Hornem.) DC. ( Spencer 1969).

Leaf mine. ( Fig. 180 ) Upper surface (though at least sometimes beginning on the lower surface), white, linear; up to 1 mm or slightly wider, with a small terminal enlargement up to 3 mm wide. The black frass is in strips or beaded strips along the sides.

Puparium. Yellowish-brown, formed within the mine, with the anterior spiracles projecting through the upper epidermis.

Distribution. USA: *CO, MT; Canada: AB.

Phytomyza clematoides Spencer

( Fig. 181 )

Material examined. COLORADO: Fremont Co., Bear Creek , Forest Rd. 101, off of 49 Rd., 7.vii.2015, em. 26.vii.2015, C.S. Eiseman, ex Clematis ligusticifolia , #CSE1853, CNC564610 (1♀) .

Host. Ranunculaceae : Clematis ligusticifolia Nutt.

Leaf mine. ( Fig. 181 ) Whitish, gradually widening, entirely linear; frass in numerous, small, closely spaced grains.

Puparium. Brown; formed outside the mine.

Distribution. USA: *CO, WA.

Comments. The identification of this female is very tentative, as no reference material of P. clematoides was available and the genus is in need of revision.

Figures

FIGURES 180–188. leaf mines; 180: Phytomyza clematiphaga Spencer in Clematis hirsutissima (puparium at left); 181: P. clematoides Spencer in Clematis ligusticifolia; 182: P. confusa spec. nov. in?Hydrophyllum virginianum; 183: same; 184: P. crassiseta Zetterstedt in Ƒeronica officinalis; 185: P. doellingeriae spec. nov. in Doellingeria umbellata; 186: P. erigeronis spec. nov. in Erigeron annuus; 187: Phytomyza fricki (Griffiths) in Symphoricarpos sp. (Idaho); 188: same (Wyoming).