. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. remains. The Anastatus, after consuming the entire contents of the eggshell had reached the hibernating stage, and settled down to some 10 months of inactivity, when it was attacked by Schedius. No less than three Schedius eggs were deposited in fairly rapid succession (but probably by different parents) since the three larvae, the outlines of which are shown, are practically equal in size. All are apparently about ready to molt for the second time, and after this molt, if they had been allowed to live, one would
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. remains. The Anastatus, after consuming the entire contents of the eggshell had reached the hibernating stage, and settled down to some 10 months of inactivity, when it was attacked by Schedius. No less than three Schedius eggs were deposited in fairly rapid succession (but probably by different parents) since the three larvae, the outlines of which are shown, are practically equal in size. All are apparently about ready to molt for the second time, and after this molt, if they had been allowed to live, one would most certainly have gained the mastery and devoured the others. But this conflict for supremacy, sanguinary as it is, is only the beginning of what might occur in the open in Japan. Tyndarichus and Pachyneuron are both habitually and essen- tially secondary parasites, and both prey not only upon Schedius, but upon each other with perfect impartiality. Either might attack the surviving Schedius, and be in turn the victim of the other, fig. 25.—Pachyneuron and there is no apparent reason why Schedius £^j£; %££ should not return to the fray and, by destroying enlarged. (Origi- its own secondary, start the battle all over again. Such a long-drawn-out contest is hardly likely to occur very often, but in many instances tales scarcely less sanguinary have been told by the relics which strewed the field of battle. Among these relics the anal shield with egg stalk and the characteristic mandibles (figs. 21 and 22, respectively) have served as positive indication of the former presence of Schedius. Tyndarichus is betrayed by its mandibles (fig. 23), which, like those of Sched- ius, retain their characteristic form through all three stages. The former presence of Pachyneuron, curiously enough, is quite easily recognizable by its characteristic eggshell (fig. 24), which is of a substance which defies the action of hot concen- trated caustic potash sufficently prolonged to result in
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