. The culture and diseases of the sweet pea. i6o DISEASES OF THE SWEET PEA Syrphid Flies. Syrphus ribesii. In company with the plant lice are seen greenish, flat sticky looking ''worms,". FIG. 34. SYRPHID FLY, Syrphus Americafius, whose larva FEEDS ON THE SPRING GREEN APHIS AND ALSO ON THE SWEET PEA APHIS, O FEMALE FLY. b SECOND ABDOM- INAL SEGMENT OF MALE. (AFTER WEBSTER AND PHIL- IPS.) which are pointed at one end and seem to have no distinct head, eyes, or legs. These are larvae or maggots of a two- winged fly commonly known as Syrphid or Flower Fly. The maggots obtain their food by pu

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. The culture and diseases of the sweet pea. i6o DISEASES OF THE SWEET PEA Syrphid Flies. Syrphus ribesii. In company with the plant lice are seen greenish, flat sticky looking ''worms, ". FIG. 34. SYRPHID FLY, Syrphus Americafius, whose larva FEEDS ON THE SPRING GREEN APHIS AND ALSO ON THE SWEET PEA APHIS, O FEMALE FLY. b SECOND ABDOM- INAL SEGMENT OF MALE. (AFTER WEBSTER AND PHIL- IPS.) which are pointed at one end and seem to have no distinct head, eyes, or legs. These are larvae or maggots of a two- winged fly commonly known as Syrphid or Flower Fly. The maggots obtain their food by puncturing the body wall of. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Taubenhaus, J. J. (Jacob Joseph), 1885-. New York : E. P. Dutton & Company