. Annual report of the Agricultural Experiment Station. Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). las Bulletin 190. avid oftentimes injurious injects, we hesitated to believe that they conld be tlie culprits. But we were soon convinced of their guilt when we placed some of them in a cage with ripe strawberries. In less than an hour we saw them at their nefarious work, and in 24 lionrs, 12 of the beetles had made about 20 large berri(?s look like those in fiirure 4:3. A microscopic examination of the alimentary canal in a large nundjer of ground-beetl
. Annual report of the Agricultural Experiment Station. Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). las Bulletin 190. avid oftentimes injurious injects, we hesitated to believe that they conld be tlie culprits. But we were soon convinced of their guilt when we placed some of them in a cage with ripe strawberries. In less than an hour we saw them at their nefarious work, and in 24 lionrs, 12 of the beetles had made about 20 large berri(?s look like those in fiirure 4:3. A microscopic examination of the alimentary canal in a large nundjer of ground-beetles (^12th Eept. State Entomologist of Illinois, pp. 105-116) has shown that a considerable percentage of their food mav be of a vegetable nature, but that in most cases tliej showed a partiality for animal food where it was easily obtainalde. The two kinds of these beetles found eating strawberries are known to some-. 4'2.— ILirpulas penmphaniciis. Ma^e beetle natural size in center and twice enlarged at the left; female, ttnice natural size, at tJie right. timi3S inc^lude young grasshoppers c'tnd various kinds of injurious caterpillars in their daily diet. In their grub stages they are also said U) l)e carnivorous, but there is little detinite knowledge recorded of their life-histories. B(jth kinds of the beetles, howevei', have several times been found feeding on the seeds of the common i-ag- weed (Can. Ent. xxxii., 270) and on the seeds of grasses. Hence it is not so sur])rising after all to find them enjoying a diet of straw- berry seeds, sometimes also ihivoring it with the luscious pulp of the fruit. It was our first expei'ience with these ground-beetles in an injuri- ous i-ble, and we failed to find any recoi'd of such bad habits in American entomological literature. But we soon learned that. 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 n
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