. The American entomologist. Entomology. 26 THE AMERICAN Colors—Dull White. The Thbee-lined Leaf-beetle {Lema tri- lineata, Olivier).—The three first insects, described and figured above as infesting the potato-plant, attack it only in the larva state. The four next, namely the four Blister-beetles, attack it exclusively in the perfect state. The three that remain to be considered attack it both in the larva and in the perfect state, but go underground to pass into the pupa state; in which state—like all other Beetles, vdthout ex- ception—they are quiescent, and eat nothing at a
. The American entomologist. Entomology. 26 THE AMERICAN Colors—Dull White. The Thbee-lined Leaf-beetle {Lema tri- lineata, Olivier).—The three first insects, described and figured above as infesting the potato-plant, attack it only in the larva state. The four next, namely the four Blister-beetles, attack it exclusively in the perfect state. The three that remain to be considered attack it both in the larva and in the perfect state, but go underground to pass into the pupa state; in which state—like all other Beetles, vdthout ex- ception—they are quiescent, and eat nothing at all. The larva of the Three-lined Leaf-beetle may be distinguished from all other insects that prey upon the potato by its habit of covering itself with its own excrement. In Figure 16 a, this laiTa is shown in profile, both full and half grown, covered with the soft, gi'eenish excrementitious matter which from time to time it discharges. Fig. 16 c gives a somewhat magnified view of the pupa; and Fig. 16 6 shows the last few joints nomenclature is getting to Ije an unbearable nuisance, and must be put a stop to. Otherwise one-half of the time of every entomologist, which might be much better occupied in studying out scientilic facts, will be fi'ittered away in studying out scientific phrases. We propose, therefore, at the very next session of Congress, to ijrocure the passage of a law, which shall inflict a line of $1000 upon every entomo- logical writer who willfully, causelessly, maliciously, and without any practical benefit thereby redounding to science, shall disturb the established nomenclature of .any insects, commonly called bugs; $909 of the aforesaid $1000 to be always paid into the fiscal chest of the Ajmebican Entomo- logist, and the remaining $1, after deducting legal expenses and all the customtiry pickings and steel-filings, to be appro- priated to the payment of the National debt. Many wi'iters, in giving the scientific designation of an insect, neglect t
Size: 1897px × 1318px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1860, booksubjectentomology, bookyear1
