Annual report of the Fruit Growers' Association of Ontario, 1896 . eis not a persistent and perpetual enemy, and unrestrained does not threaten the exter-mination of the species, and protection from it has never become necessary, and is notnow essential. The Harlequin cabbage bug, Murgantia histrionica, (Fig. 81), is a con-spicuously colored, tropical species, that has made its way northwardas far as Lat. 40° 48, even the egg being white banded with only does the species feed during its entire life, in all stages ofdevelopment, in the most exposed positions, but the eggs are placed m
Annual report of the Fruit Growers' Association of Ontario, 1896 . eis not a persistent and perpetual enemy, and unrestrained does not threaten the exter-mination of the species, and protection from it has never become necessary, and is notnow essential. The Harlequin cabbage bug, Murgantia histrionica, (Fig. 81), is a con-spicuously colored, tropical species, that has made its way northwardas far as Lat. 40° 48, even the egg being white banded with only does the species feed during its entire life, in all stages ofdevelopment, in the most exposed positions, but the eggs are placed mclusters equally exposed, every habit, in facb, indicating a total disregardof the pn sence of natural enemies of any description, thereby implying, ^ _ ^ though not proving that it is distasteful if not waroingly colored. Some time since 1 had *Read before Section F, Zoology, of tlie American Association for the Advancement of Science, at theBuffalo, , mR^ting, AiiKU-t. 2Hh, 1>96. +Linn. Soc. Trnns. Vt^l. XXVI., pp. 497, ct s(g. ?.|. JVol. v., p. »--{>,• —/J — Fig. 81. ENTOMOLOGICAL SOCIETY OF ONTARIO. 81 occasion to confine a number of these bugs in a greenhouse upon cabbage plants o^erwhich a breeding cage without a bottom was placed, earth being banked up about ihebase of the cage. The bugs had been thus confined for a short time when during thenight, mice worked their way under the side of the cage, and in the morning all thatremained of the bugs consisted of a confused lot of heads, legs and fore wings, the micehaving clearly eaten the confined bugs during a single night. Still, as against persistentand continual enemies these bugs may be and probably are distasteful, mice being onlyoccasional or accidental enemies. In commenting on the experiments of Professor Plateau, • Science Gossip, perhapssomewhat overestimating the value of the results obtained, says :— It would indeed bewell if all the examj)les of warning coloration were subjected to a
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