Economic entomology for the farmer Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; economicentomol00smit Year: 1906 Malachius marginicollis : much enlarged. Clef us apivorus.—a, larva ; b, pupa ; beetle central: all enlarged. the trunks of trees, running about rapidly and somewhat resem- bling ants. Their larvae in such cases prey upon wood-boring insects, principally such as live in sap-wood, and they are slender, with short legs and a Fig. 179. prominent, somewhat pointed head. They are extremely useful in keep- ing i
Economic entomology for the farmer Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; economicentomol00smit Year: 1906 Malachius marginicollis : much enlarged. Clef us apivorus.—a, larva ; b, pupa ; beetle central: all enlarged. the trunks of trees, running about rapidly and somewhat resem- bling ants. Their larvae in such cases prey upon wood-boring insects, principally such as live in sap-wood, and they are slender, with short legs and a Fig. 179. prominent, somewhat pointed head. They are extremely useful in keep- ing in check bark-beetles and other borers, and are thus worthy of our dis- tinguished consideration. Most of the other species are also predaceous in the larval stage, but hardly beneficial, since they live in the nests of bees, devouring both the larvae and the food stored for them. Clenis apivorus
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