Stigmella macrocarpae

Freeman, 1967

Sort #: 15 | P3 #: 160013 | MPG #: 88
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Larval feeding type: Leaf miner; larva green, forms a linear mine with a broad frass line, mostling filling the width, with "discernible zigzagging arcs for much of the mine’s length, these narrowing toward the end" (Eiseman, 2021); cocoon v. pale brown
Larval substrate: Quercus alba (White Oak), Q. velutina* (Black Oak), Q. macrocarpa (Burr Oak), Q. palustris (Pin Oak), Q. coccinea, ?Castanea
Phenology: Adult: 6/04 to 8/01 (3 records)

Comment: S. macrocarpae and S. nigriverticella can be very difficult to distinguish, although the males of nigriverticella have androconial scales on the hindwings. S. macrocarpae apparently tends to have a broader fascia than S. nigriverticella

Status in MA (automated assessment): Restricted distribution, rare
Status in N. America: Native
MA Endangered Species Act status: None
First Year Reported: 2003
Last Year Reported: 2020

Distribution by County: Middlesex, Norfolk, Bristol
Number of Records: 5