not in Young A stand of Cacalia atriplicifolia was surveyed for seven years in Clare County, Michigan, to determine leaf mining species present, mine characteristics, parasitoids, and seasonal occurrence. Three species were recovered: Trypeta flaveola Coquillett (Diptera: Tephritidae), Phyllocnistis insignis (Frey & Boll) (Lepidoptera: Gracillariidae), and Dichrorampha incanana (Clement) (Lepidoptera: Tortricidae). One parasitoid, Metes sp. (Hymenoptera: Braconidae????) was recovered from T. flaveola. This plant is a newly reported larval host for each of these species and the first reported larval host of D. incanana. Leaf mine characteristics and life histories of these three species are discussed. Trypeta flaveola (Tephritidae): Host; Utetes (Braconidae): Parasite; Phyllocnistis insignis (Gracillariidae); Dichrorampha incanana (Tortricidae). Dichrorampha incanana, Phyllocnistis insignis: Food plants, Cacalia atriplicifolia, New record, leaf mine characteristics, larva, Michigan, Clare County, biology; Trypeta flaveola: Food plants, Cacalia atriplicifolia, New record, leaf mine characteristics, larva, Hymenopteran parasites, Utetes, Recorded, Michigan, Clare County, biology; Utetes: Dipteran hosts, Trypeta flaveola, Recorded, Michigan, Clare County. Arthropods; Hymenopterans; Insects; Invertebrates; Lepidopterans; True Flies. none