Caryomyia stellata

Appearance

Occasional, on Eucarya hickories; single or clustered, on lower leaf surface between veins; 5.0-9.0 mm in height, elongate-conical, base flared laterally, the flat- tened edge often stellate, sometimes merely irregularly lobed, cone usually greatly attenuate and slightly curved to apex, furrowed; surface smooth, bare, green turning purple; base with shallow, circular, central excavation, leaf with no exfoliation surrounding connection; larval chamber ovoid, located at base of gall, surrounded by yellowish pellicle different in texture from soft, viscous, usually purple surrounding tissue that collapses with age, a bundle of fibers traversing between larval chamber and gall apex.

Distribution

US: East of the Appalachians

Habitat

Eucarya hickories