wtmorgan at pilot.msu.edu
Sun Dec 5 07:10:52 EST 1999
In article <82c081$eet$1 at nnrp1.deja.com>, etsang at my-deja.com wrote:
> I think they are aphids, not sure.
Aphids are distinctive in appearance. The body is sort of teardrop shaped,
and the top of the rear of the abdomen has two bumps or tubes projecting
from it. Those are called cornicles, and are a definitive aphid feature.
Also, the young look like miniature adults, except that they are sometimes
(not usually) different in color. Aphids are generally, wingless, though
occasional winged ones may be seen: those are the sexual reproductives. For
most of the seasonal cycle, aphids reproduce asexually, are all females and
are born pregnant. This is why they take over so rapidly.
Bill Morgan <wtmorgan at pilot.msu.edu>
"Those who do not learn the lessons of science fiction are condemned to
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