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I trust that the methodical science of the future will take account of these gastronomic laws, to the great relief of the entomological novice, who is too often hampered by the snares of the mouth-parts, the antennae and the nervures of the wings.
The music in the males of the Acridiidae is produced by the scraping of the long hind thighs against the horny nervures of the outer edges of the wing-cases; a drum- shaped organ placed in a cavity near the insertion of the thighs being adapted to give resonance to the tones. I obtained very few birds at Obydos. There was no scarcity of birds, but they were mostly common Cayenne species.
She freezes the quarry with fear or amazement by suddenly assuming the attitude of a spectre. The wings play an important part in this fantastic pose. They are very wide, green on the outer edge, but colourless and transparent elsewhere. Numerous nervures, spreading out fan-wise, cross them in the direction of their length.
Exp. 2 1/2 inches. CHELONIA PALLIDA, pl. 5. f. 3. Anterior wings pale brown, with white nervures and nervules, and marked with several whitish spots, of which four are on the costa, two longitudinal before, two transverse beyond the middle of the wing, and on the inner margin are three irregular patches, sometimes confluent, beyond which is a band parallel with the outer margin, commencing above the upper median nervule, and terminating on the inner margin; posterior wings white, with a discoidal spot, a macular band near the outer margin, and a less distinct marginal one, all brownish; head white; thorax white, with three black vittae; abdomen above rufous, with six transverse black spots, the sides varied with black and white; antennae black; femora red; tibiae and tarsi black.
To judge from this first examination, one would guess that an organisable fluid is rapidly congealing into a network of nervures; one seems to be watching a process of crystallisation comparable, in its rapidity, to that of a saturated saline solution as seen through a microscope. But no; this is not what is actually happening. Life does not do its work so abruptly.
They are covered longitudinally by prominent nervures. The fruit borne by this dangerous plant is of the size and form of a small orange, slightly depressed at the stalk and the opposite part. It is very black and hard to break, a hammer or its substitute being necessary to disclose its contents which consist in a great number of little seeds embedded in a scanty pulp.
I can plainly recognise the longitudinal nervures, which are already stiff; and I can also see pale, and without relief the transverse nervures. I find them all in the terminal stump, and am able to spread out a few of its folds under the microscope.
Head densely clothed with long whitish hairs; thorax and abdomen with black hairs; wings hyaline, the nervures and nervules brown, with a few black scales: base of the anterior and abdominal fold of the posterior more or less covered with black hairs; antennae and legs fuscous brown. Exp. 10 12 lines.
The grating quality of the sound appears to be due to the little tongues which press on the nervures of the vibrating cymbals; the cause of its intensity is of course the ample resonator in the abdomen. We must admit that one must truly have a real passion for song before one would empty one's chest and stomach in order to make room for a musical-box.
It crept from leaf to leaf with its soft-whispered message until it reached the leaf that most had need of it. The little Emperor trembled with excitement. His wings were coming into being. One by one, like petals of an opening flower, the clinging folds relaxed and told their secret. One by one the branching nervures hardened. By sundown the great change of all was over.
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