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Show i I nemlen of Trapdoor Npldern. j It 1h difHcuIt today what may ho the i enciiiies df tho tr.pil(Kr hpi'lcr, agairiht vliirh huch inii'iiious architecture has lx en reare.l and mich vigilant watch in exercised. Dot the (juito frcucrnl testimony testi-mony is that theso Hpidera leave their tubes at nighr, nnd go forth in warch of prey, or, uh in other caex, open the lids of their tunnels and spread Ktra.liutf lines near liy, upon v.hi h pat-sing insects are entangled and delayed lon; enough to allow the spiders to pouiu'e upon them from their open caves. If we credit these accounts we luiuht infer that the eneuiies which the trapdoor spiders most dread are not smh as are abroad at ' niKhl- ' Evidently the creatures are fearless at that time a stale of mind which doubt-iess doubt-iess results from their knowledge that they are comparatively free from their ; worst enemies. The enemies which they ! most dread may therefore bo reasonably looked for lunong diurnal creatures, and ' I not amotifj those of uocttimal habits. .moiiK these foes at least one of the most formidable and irresistible is a di- uinal insect, the fetnalo of tho terrible digger wasp, which I do not doubt will lie found to stor j trap door spiders aa well as tarantulas and lycosids. Henry U. McC'ook, D. D., in Popular Science. |