British Bees: An Introduction into the Studies of the Natural History and Economy of the Bees Indigenous to the British IslesShuckard, William Edward
Science
British Bees: An Introduction into the Studies of the Natural History and Economy of the Bees Indigenous to the British Isles
Shuckard, William Edward
Bees; Hymenoptera -- Great Britain
This tongue was formerly thought to be tubular, and that the bee sucked
the honey through an aperture at its apex. The knowledge of the flat
form of the tongues of other bees should have dissipated the illusion,
for we could have been perfectly sure of the analogical structure and
function of an organ in creatures so nearly alike. Réaumur’s patient
observations have totally dissipated the mistake, and through him we
exactly know how the bee conveys the honey into its stomach As it
exhibits an agreeable instance of the persevering industry and
unblenching patience with which he made his researches, I will give a
summary of what he says, for his bulky volumes, although teeming with
delightful instruction, pleasantly narrated, will necessarily not be in
every entomologist’s hand, and where not, not even always readily
accessible. His observations were made upon the honey-bee, but we may
attribute the same mode of collecting to all the rest. He says:—When
this tongue is not lapping the nectar of flowers but in a state of
perfect repose it is flattened. It is then at least three times broader
than thick, but its edges are rounded. It gradually narrows from its
base to its extremity. It terminates in a slight inflation, almost
cylindrical, at the end of which there is a little knob, which appears
perforated in the centre. From the circumference of this knob tolerably
long hairs radiate, and the upper side of the tongue is also entirely
covered with hairs. The basal and widest portion above seems striated
transversely with minute lines closely approaching each other.
The upper side of the anterior portion of the tongue seems of a
cartilaginous substance, but the under side of the same part appears
cartilaginous only over a portion of its width. The centre is throughout
its whole course more transparent than the rest, and seems membranous
and folded. It is only necessary to press the posterior portion of this
trunk, whilst holding its anterior part closely to a light, towards
which its upper surface must be turned, and then upon examining its
inner surface with a lens of high power, a drop of liquid may be soon
observed at its foremost portion. By continuing to press it this drop is
urged forward, and as it passes every portion swells considerably, and
the two edges separate more widely from each other. The under side of
the tongue, which was before flat, rises and swells considerably, and
all that thus rises up is evidently membranous. It looks like a long
vessel of the most transparent material. But whilst this great increase
of bulk is made upon the lower surface, the upper surface swells only a
little, which seems to prove that its immediate envelope is not capable
of much distension.
If a bee be observed whilst sipping any sweet liquor, the anterior
portion of its trunk will be sometimes seen more swollen than when in
action, and alternations will be observed in it of varying expansion.
Public-domain text, read in full here on John Shaqi.
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