Calycomyza sp. 4

(Fig. 123)

Material examined. OHIO: Delaware Co., Sunbury, Monkey Hollow Rd., 1.viii.2016, em . 13.viii.2016, C.S. Eiseman, ex Blephilia hirsuta, #CSE2878, CNC659973 (1♀).

Host. Lamiaceae: Blephilia hirsuta (Pursh) Benth.

Leaf mine. (Fig. 123) Whitish, upper surface (nearly full-depth); beginning with a long, narrow linear portion with frass in black grains or strips along the sides, later expanding to a blotch that may obliterate the linear portion. Frass in the blotch may be in scattered black particles or almost nonexistent; one blotch had concentric feeding lines.

Puparium. Yellow to orange-brown; formed outside the mine.

Comments. No agromyzid has been associated with Blephilia previously. The leaf mines, with their very long initial linear portion and clean, whitish appearance throughout, are quite unlike those produced by Calycomyza menthae on other mints.