Principal household insects of the United States . a tobacco feeder it out-ranks that species, and also appears to favorcertain medicinal plants not so often affectedby the Sitodrepa. Of household supplies it has been found,in the experience of the writer as well as ofothers, infesting cayeune pepper, ginger, rhu-barb, rice, figs, yeast cakes, and prepared fishfood. It has been reported as destructive tosilk and plush upholstery, and the past yeardid considerable damage to dried and pre-served herbarium specimens in drugs it is partial to ergot and turmeric,and tobacco it devours
Principal household insects of the United States . a tobacco feeder it out-ranks that species, and also appears to favorcertain medicinal plants not so often affectedby the Sitodrepa. Of household supplies it has been found,in the experience of the writer as well as ofothers, infesting cayeune pepper, ginger, rhu-barb, rice, figs, yeast cakes, and prepared fishfood. It has been reported as destructive tosilk and plush upholstery, and the past yeardid considerable damage to dried and pre-served herbarium specimens in drugs it is partial to ergot and turmeric,and tobacco it devours in every form, in theleaf and when made up into chewing plug,cigarettes, and cigars. This species is of about the same size andcolor as the drug-store beetle, but, as maybe seen in the figure (03, ), is more robust and the elytra are notstriated. The head is more prominent and the antennae are nearlyuniformly serrate, not ending in a three-jointed club (fig. 63, e). Thelarva, represented at d in curved position at rest, is more wrinkled. Fig. 64.— Lasioderma serricorne:Head of larva, shown above: legof larva below—mueh enlarged(original). INSECTS AFFECTING CEREALS, ETC. 127 and hairy than that of Sitodrepa, and differs as well in the structure ofthe head and legs (see fig. 64). The pupa, shown at fig. <!.*), &, is whiteand is incased, like other ptinids, in a fragile cocoon. THE WHITE-MARKED SPIDER BEETLE. (Itniit* fur Linn. ) Two more species of this same family and of somewhat similar habitsto the I wo beetles just mentioned arc sufficient ly common in storerooms and cellars, particularly of old houses, and especially in the North, toattract occasional notice. The more Important of these is Ptintis fur,which may be called the white-marked spider beetle, t distinguish itfrom the allied //. hruiuiciis, which is uniform brown in color. Thisbeetle is reddish brown, with four white bands bn fts elytra. It liaslong antennas and legs and a more or less globular body, and str
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsectp, bookyear1896
