Phytomyza

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 : 93

Phytomyza sp. 3

( Figs. 62 , 219 )

Material examined. MASSACHUSETTS: Berkshire Co., Washington, 26.ix.2014, em. 15.iii.2015, C.S. Eiseman, ex Lonicera canadensis , #CSE1472, CNC634767 (1♀) .

Host. Caprifoliaceae : Lonicera canadensis W. Bartram ex Marshall.

Leaf mine. ( Fig. 219 ) Upper surface, whitish with brown discoloration along middle of channel; irregular, branching, centered on midrib, at base of leaf. Feeding lines evident in later portions. Frass in dark, widely scattered grains.

Puparium. ( Fig. 62 ) Brown, with a broad, dark, central stripe on the ventral surface; formed within the mine with its anterior spiracles projecting through the upper epidermis.

Comments. This appears unlikely to be any of the four known North American Lonicera -feeding Phytomyza species, three of which were covered by Griffiths (1974a) and one of which is described as new in this paper. Larvae of P. chamaemetabola (Griffiths) exit their mines to pupate. The other species all pupate internally, but P. nigrilineata (Griffiths) and P. sempervirentis both have white puparia in addition to depositing the frass particles much more closely, partly forming beaded strips. The mine of P. gregaria Frick is similarly based on the midrib, but the larvae are gregarious and Griffiths (1974a) made no mention of a dark stripe on the puparium.

Figures

FIGURES 58–62. Figures 58–59. Phytomyza verbenae spec. nov.; 58: adult male; 59: empty puparium. Figures 60–61: P. ziziae spec. nov.; 60: adult female; 61: puparium. Figure 62: Phytomyza sp. 3, puparium.

FIGURES 217–224. leaf mines; 217: Phytomyza sp. 1 in Sium suave; 218: Phytomyza sp. 2 in Symphyotrichum lateriflorum; 219: Phytomyza sp. 3 in Lonicera canadensis (puparium at leaf base, far left); 220: Phytomyza sp. 4 in Symphoricarpos orbiculatus (puparium toward top of photo); 221: Phytomyza sp. 5 in Caltha palustris; 222: Phytomyza sp. 6 in Trautvetteria caroliniensis; 223: Phytomyza sp. 7 in Tiarella trifoliata var. unifoliata; 224: Agromyzidae sp. 1. in Arnica?cordifolia.