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TEXAS NATURE OBSERVATIONS AND REMINISCENCES. 21
breeding cycle, i. e., most of them itself that these pests had been
after opening the minute globular conveyed through tobacco goods
capsule showed a small live and in the tobacco factories before becurved
larva. In others the ma
ing put on the market, it being
turing larva beetles could be seen, very difficult to detect the minute
the larval state being in appear
ova. How these beetles develop in
ance identically the same as photo
all sorts of tobacco is seen, as a
graphed in Figs. 2 and 3. On second example, in the so-called
closer inspection of Fig. 4 several plug tobacco, Fig. 2 (1), which
of the whitish larvae of this beetle I also procured from the druggist.
are seen, for instance at the places I prepared the view with an obmarked
1, and also two of the ma
jective lens applied to the camera,
ture tobacco beetles, (center right showing the tobacco larvae about
rear). Some of these larvae were one-half times magnified, also the
quite disfigured in general ap
second figure of the same photopearance
from the fine orris root graph, showing some of the larvae
powder adhering to their fine of the drug store beetle and the
tobacco insect and also the appearance
and size (about one-half
larger of the tobacco and the
Prl or Edrug beetle (the latter being more
slender).
In further experimenting with
this matter, I succeeded in preparing
the view, (Fig.3,) using an
extra strong lens to the
camera at quite near focus, showing
six of the tobacco larvae, two
full-grown tobacco beetles ande
one drug store beetle (the lowest
rone in the photograph) magnified
considerably.
The third illustration in Fig. 2
shows the closely allied drug store
beetle, named because of its preferance
of invading drug store
goods and infesting precisely in
the same manner as the tobacco
beetle. This view shows the
beetles in very slightly less than
normal size. This drug store
Fg. 4. beetle more built than
Cocoons of the Tobacco Beetle with Larva eslenderly
Partly or Entirely Encapsulatcd. the tobacco beetle, but otherwise
hairy filaments. In a few artifi
is of a similar, reddish brown
cially opened cocoons the larva is color and very active in its moveseen
quite plainly in the illustra
ments. Both the tobacco and drug
tion. store beetle, it seems, undergo
It is an interesting fact, also about one and the same cycle of
stated by Mr. Lucas, that these development and when the ova
tobacco beetles prefer the best are deposited in favorable media
brand of tobacco and the more so of a powdered nature, such as rhuas
they are occasionally found in barb, orris root, slippery elm, lintobacco
which had been sealed air
seed meal, tobacco or cayenne
tight in tin or wooden boxes and Pepper, the ovum transforming
therefore the probability presents into the larval state is encysted
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Menger, Rudolph. Texas Nature Observations and Reminiscences, book, 1913; San Antonio, Tex.. (https://texashistory.unt.edu/ark:/67531/metapth14396/m1/21/?q=menger/: accessed April 19, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Special Collections.