. Annual report. New York State Museum; Science -- New York (State); Plants -- New York (State); Animals -- New York (State). io8 NEW YORK STATE MUSEUM This midge is abundantly parasitized in certain localities by Aprostocetus diplosidis and Tetrastichus, the latter being both a primary and secondary parasite. By far the most important predaceous enemy of the midge is the Argentine ant, Iridomyrmex humilis Mayr. These insects swarm over the sorghum plants and seize and carry off the midge pupae pro- jecting from sorghum seeds. A fly, Psilopodinus flavi- ceps Aldr., has been observed preying up
. Annual report. New York State Museum; Science -- New York (State); Plants -- New York (State); Animals -- New York (State). io8 NEW YORK STATE MUSEUM This midge is abundantly parasitized in certain localities by Aprostocetus diplosidis and Tetrastichus, the latter being both a primary and secondary parasite. By far the most important predaceous enemy of the midge is the Argentine ant, Iridomyrmex humilis Mayr. These insects swarm over the sorghum plants and seize and carry off the midge pupae pro- jecting from sorghum seeds. A fly, Psilopodinus flavi- ceps Aldr., has been observed preying upon the midges. It is probable that humming birds also devour these small flies. Remedial measures. Johnson. grass should not be allowed to grow in the vicinity of sorghum fields, since it is an important factor. 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 New York State Museum; University of the State of New York. Albany, N. Y. : University of the State of New York
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