THYSANOPTERA AND ORTHOPTERA. 209 



Arctium minus; in flowers and in terminal bunches of leaves of swamp 

 milk-weed, Asclepias incarnata; and in tlie flowers of the common milk- 

 weed, A. syriaca, and plem'isy-root. .1. tuherosa; among florets of large- 

 leaved aster. Aster macrophyllus. and the flat-top white aster, .1. um- 

 hellatus; in flowers of American sea-rocket, Cakile edentula; in flowers of 

 the marsh harebell, Campanula aparinoides, and of the common blue- 

 bell, C. rotundifolid ; in and among the flowers of the buttonbush, Cep- 

 halanthus occidentalis; among florets of young head, arid among seeds, 

 of green-foxtail, Chaetochloa viridis: among florets of Canada thistle, 

 Cirsium arvense, of the common thistle, C. lanceolatum, and of Pitche'r's 

 thistle, C. pitcheri; in flowers of virgin's bower. Clematis virginiana; in- 

 side of corolla and inner side of stamens of hedge bindweed. Convolvulus 

 sepium; in flowers of dogwood, Cornus stolonifera; inside and outside of 

 corolla of field pumpkin, Cucurbita pepo; in flowers of swamp loose- 

 strife, Decodon verticiUatus; upper side of leaves of barnyard grass, 

 Echinochloa crusgalli; among bases of stamens of great willow herb, 

 Epilobium angusti folium; among florets of sweet scabious, Erigeron an- 

 nuus, and of daisy fleabane, E. ramosus; in flowers of wormseed mustard, 

 Erysimum cheiranthoides; among florets of trumpet-weed, Eupatorium 

 purpureum; in flowers of false fox-glove, Gerardia pedicularia; among 

 rays of woodland sunflower, Helianthus divaricatus; among florets of 

 Canada hawk-weed, Hieracium canadense; in flowers of Kalm's St. 

 John's Wort, Hypericum kalmianum, and of common St. John's Wort 

 H. perforatum; in flowers of beach pea, Lathyrus maritimus; among 

 florets of cylindric blazing-star, Liatris cyUndracea; in flowers of butter- 

 and-eggs, Linaria vulgaris; in and among flowers of cardinal flower. 

 Lobelia cardinalis;' in flowers of cut-leaved water hoarhound, Lycopus 

 americanus; in flowers and about seed-pods of narrow-leaved cow-wheat, 

 Melampyrum. Unease; in flowers of white sweet clover, Melilotus alba, and 

 of yellow sweet clover, M. officinalis; in and among flowers of pepper- 

 mint, Mentha piperita; in flowers of sciuare-stemmed monkey-flower, 

 Mimulus ringens; among flowers and buds of pale wild bergamot, Mo- 

 narda mollis; in flowers of cultivated bean, Phaseolus vulgaris; in flowers 

 of cultivated pea. Pisum sativum; swept from blue grass, Poa pratensis; 

 in and among florets of water persicaria, Polygonum amphibium; among 

 florets of pickerel weed, Pontederia cordata; in flowers of shrubby cinque- 

 foil, Potentilla fruticosa, and of rough cinquefoil, P. monspeliensis; among 

 flowers of Prunella vulgaris; in flowers of shin-leaf. Pyrola elliptica; 

 among petals and between petals and sepals of swamp rose, Rosa. 

 Carolina; on upper side of young leaves, and in flowers of ]\Iillspaugh's 

 blackberry, Bubus canadensis; among rays of black-eyed Susan, Rud~ 

 heckia hirta: among carpels and above bases of petals of broad-leaved 

 arrowhead, Sagittaria latifolia; outside of flowers and on pedicels of Uve- 

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