. An annotated list of the important North American forest insects. Forest insects. 12 FAKMERS' BULLETIN 778. egg laying by each species under outdoor conditions at Washington, D. C, are given on pages 13, 14, and 15, So far as laiown there is only one generation annually. THE FOUR SPECIES RESPONSIBLE FOR MOST OF THE LOSSES. While, as previousl}^ stated, there are many species of Lyctus beetles in tlie United States, the European Lyc- tus, the southern Lyctus, the velvety Lyctus, and the western Lj^ctus are the four species responsible for prac- tically all the losses. THE EUROPEAN LYCTUS.* Th
. An annotated list of the important North American forest insects. Forest insects. 12 FAKMERS' BULLETIN 778. egg laying by each species under outdoor conditions at Washington, D. C, are given on pages 13, 14, and 15, So far as laiown there is only one generation annually. THE FOUR SPECIES RESPONSIBLE FOR MOST OF THE LOSSES. While, as previousl}^ stated, there are many species of Lyctus beetles in tlie United States, the European Lyc- tus, the southern Lyctus, the velvety Lyctus, and the western Lj^ctus are the four species responsible for prac- tically all the losses. THE EUROPEAN LYCTUS.* The European Lyctus beetle is rusty red-brown, slender, somewhat flattened, elongate, and from one- tenth to one-fifth inch in length. The wing covers have single rows of large, rounded, ver}^ shallow punctures. This species is commonly met with in northern Europe under natural conditions as well as in commercial products, especially in England, France, and German3^ Therefore it is evident that it was introduced into this countr}^ from Europe. In addi- tion to the w i d e distribution of this species in the tem- perate zones of the world, it is espe- cially common and destructive in the States north of North Carolina, Tennessee, and Ar- kansas. There are a great many rec- ords of damage to seasoned hardwood products by this beetle from this area, includ- ing Maine, Massachusetts, New York, Pennsylvania, Virginia, * Lyctus linearis Fig. 9.—Pupal cells of Lyctus plani- collis in powder posted wliite-ash shovel handle. (Snyder.) Fig. 10.—Pupa of a powder-post beetle, Lyctus planicolUs. (Chittenden.). 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 not perfectly resemble the original Craighead, Frank C. (Frank Cooper), 1890-; Perry, George S; Snyder, Thomas Elliott, b. 1885; Hopkins, A. D. (Andrew Delmar), 1857-1948; MacAloney, Harvey Jo
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