Flowering Plants Visited
by Tropidia
quadrata
Tropidia quadrata Say: Syrphidae, Diptera
(observations are from Robertson, Graenicher, Larson & Barrett, Barrett & Helenurm, Conger, Lovell, and Wilhelm & Rericha)
Acanthaceae: Justicia americana sn (Rb, Cng); Apiaceae: Cicuta maculata sn (Rb), Heracleum maximum sn (Rb), Pastinaca sativa sn (Rb), Sium suave sn (Rb), Zizia aurea (WR); Apocynaceae: Apocynum cannabinum [plab sn] (Rb); Asclepiadaceae: Asclepias sullivanti [plab sn] (Rb), Asclepias syriaca [plpr sn] [plup sn] (Rb, WR), Asclepias verticillata [plpr sn] (Rb); Asteraceae: Ageratina altissima sn/fp (Gr), Anthemis cotula sn/fp (Gr), Arctium lappa sn/fp (Gr), Aster furcatus sn/fp (Gr), Aster laevis sn/fp (Gr), Aster lanceolatus sn/fp (Gr), Aster prenanthoides sn/fp (Gr), Aster puniceus sn/fp (Gr), Cirsium arvense sn/fp (Gr), Eupatorium perfoliatum sn/fp (Gr), Euthamia graminifolia sn/fp (Gr), Helianthus strumosus sn/fp (Gr), Solidago juncea sn/fp (Gr), Tanacetum vulgare sn/fp (Gr); Caprifoliaceae: Symphoricarpos albus sn (Gr), Symphoricarpos occidentalis sn/fp (Gr), Symphoricarpos orbiculatus sn (Rb); Cornaceae: Cornus canadensis (BH), Cornus sericea (Lvl); Fabaceae: Amorpha fruticosa (WR), Dalea candida sn (Rb), Dalea purpurea sn (Rb), Glycine max (WR); Lamiaceae: Mentha arvensis sn (Rb), Pycnanthemum virginianum (WR); Liliaceae: Allium cernuum sn (Gr), Maianthemum canadense fp/exp (BH), Smilacina stellata sn/fp (Gr); Melastomataceae: Rhexia virginica fsp np (LBt); Polygonaceae: Persicaria hydropiperoides sn fq (Rb), Persicaria pensylvanica sn (Rb); Rhamnaceae: Ceanothus americanus sn (Rb), Ceanothus herbaceus (WR); Rosaceae: Prunus virginiana (WR), Rubus flagellaris sn (Rb), Rubus semisetosus (WR); Scrophulariaceae: Agalinis tenuifolia (Gr); Verbenaceae: Phyla lanceolata sn (Rb), Verbena hastata sn (Cng)