DoERixc;: Lhpyronia quadrangularis. 533 



FOOD HABITS. 



The nymphs and adults of this cercopid have a wide range of 

 food phmts. The nymphs have been found feeding on sixty-two 

 species of phmts, which are as foHows: 



Actinonioris altcrnifolia Compositse. 



Agrimonia {iyi'Posei)aIa (agrimony) Rosacea). 



Ambrosia trifida (horseweed) Compositse. 



Ambrosia artemisiifolia (ragweed) Compositse. 



Andropogan furratus Gramineae. 



Apocynuiu caniiabinuni (dogbane) Apocynaceae. 



Apocynvun luibescens Apocynaceae. 



Asclepias syriaca (common milkweed) Asclepiadacese. 



Asclepia.s tuberosa (butterfly weed) Asclepiadaceae. 



Asclepias verticillata Asclepiadaceae. 



Aster paniculatum Compositae. 



Aster salicifolius Compositae. 



Bromii^ secalinus (chess or cheat) Gramineae. 



Chenopodium album (lamb's-quarters) Chenopodiaceae. 



Cirsium altissimum (thistle) Compositae. 



Cornus baileyi (dogwood) Comaceae. 



Erigeron canadensis (butterweed) Compositae. 



Erigeron ramosus (daisj^ fleabane) Compositae. 



Eupatorium altissimum Compositae. 



Galium aparine var. vaillantii (cleavers) Rubiacese. 



Geum canadense (avens) Rosaceae. 



Geum strictum (avens) Rosaceae. 



Helianthus grosserratus (?) (sunflower) Compositae. 



Helianthus petiolaris Compositae. 



Hehopsis scabra (oxeye) Compositae. 



Juglans nigra (black walnut) Juglandaceae. 



Lactuca canadensis (wild lettuce) Compositae. 



Lactuca pulchella (?) Compositae. 



Lactuca scariola Compositae. 



Lactuca spicata Compositae. 



Lycopus americanus (?) (water horehound) Labiatae. 



Melilotus alba (sweet-clover) Leguminosae. 



Morus rubra (red mulberry) Urticaceae. 



Osmorhiza claytoni (sweet cicely) Umbelliferae. 



Panicum virgatum Gramineae. 



Panicum wilcoxianum Gramineae. 



Phleum pratense (timothy) Gramineae. 



Plantago rugelii (plantain) Plantaginaceae. 



Prunella vulgaris (heal-all or carpenter weed) . . . Labiatae. 



Rhus glabra (smooth sumac) Anacardiacese. 



Robinia pseudo-acacia (black locust) Leguminosae. 



Rosa setigera (wild rose) Rosaceae. 



Rubus canadensis Rosaceae. 



Rubus occidentalis (black raspberrj) Rosaceae. 



