Texas Nature Observations and Reminiscences Page: 20 of 322
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20 TEXAS NATURE OBSERVATIONS AND REMINISCENCES.
to transform into the pupa state ova inside the tunneled holes when
of development. after a certain length of time the
When under the powerul rays larvae seen on the plug cut tobacof
a bulls-eye reflector in this at
co (Fig.II.) and the cigar
tempt to photographically repro
specimen develop. This process
duce these larvae in situ, they be
has been witnessed off and on
came quite lively and, fearing the years ago and again lately by the
result would be spoiled, I dropped writer when the furrows of these
some chloroform near the furrows, beetles had been exposed in towhen
they ceased moving at once. bacco and some drugs, either of
The photograph shows the larvae which they feed upon but with
preference for the tobacco and
usually for the best brand of tobacco
goods.
These minute insects are occasionally
and numerously found in
dried vegetable drugs and household
goods. But lately my friend,
the druggist, happened to find an
old package of orris root powder
in which numerous round and oval
shaped bodies of granular appearance
were present which after
mounting and microscopical examination
I found to be composed
mainly of the cocoons of the minute
tobacco beetle and I prepared
Fig. 2. (1) Plug Tobacco Infested with the
Tobacco Larvae. (2) Tobacco and Drug Store
Beetles with Larvae. (3) Drug Store Beetles
at Normal Size.
in their natural positions as they
had not been touched.
Near these larval tobacco beetles
are seen some holes and furrows
in the cigar which the mature
beetles and afterwards these
developing larvae had prepared.
It seems that during the fall and
winter the mature insects perfor
Fig. 3.
ate the tobacco and also other Two Tobacco Beetles and one Drug Store
Beetle (Lower) and Larvae.
material such as food stuffs and
drugs, producing a round deep a photograph of them magnified
hole not larger than the body of slightly (Fig. IV.). Nearly all of
the insect, and then deposit the these beetle cocoons were in the
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Menger, Rudolph. Texas Nature Observations and Reminiscences, book, 1913; San Antonio, Tex.. (https://texashistory.unt.edu/ark:/67531/metapth14396/m1/20/?q=menger: accessed April 25, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Special Collections.