The spiracular spines are prominent, and a row of conical spines runs round the edge of the body, as in the adult.
Tracheæ very large; spiracular orifices containing brown tubes with beaded extremities on the inner end.
Along the edge of the body is a row of sharp lanceolate spines set closely together, and the spiracular spines are long and conspicuous.
In the frog this bar of cartilage is joined directly to the otic capsule by a quadrate portion, but this is only doubtfully represented in the dog-fish by a nodule of cartilage in the pre-spiracular ligament (p.
After finishing the flowers they commenced on the leaves, by which time they were a pale green colour, with a yellow spiracular stripe, and were fond of resting by day on the stems of the plant.
The spiracular line is dusky, but not conspicuous, and the spiracles are blackish surrounded with yellow.
The spiracular stripe is broader and of nearly equal width, pale ochreous-brown, edged with brownish-white both above and below; the spiracles are black.
The caterpillar when full grown is deep green with minute black dots, from which fine hairs arise, and a pink-marked yellow, or whitish, spiracular line.
They are attached in lines on the membrane or covering of the wing by short stalks which fit into sockets in the membrane.
Whatever their particular use may be to the possessor, these androconia enable the entomologist to distinguish male specimens from females with great certainty.
Some collectors seem to be expert at killing butterflies by pressing the sides of the thorax together.
As seen on the wings, the scales are flattened and the upper and under sides are then almost, or quite, brought together.
Chitin, it may be mentioned, is the horny substance of which the chrysalis shell is formed, and this was adverted to when discussing the chrysalis stage as a varnish-like ooze.
The term chrysalis more especially applies to such of them as are spotted or splashed with metallic colour, as, for example, the chrysalids of some of the Fritillaries.
The subdorsal line has now completely vanished, whilst the spiracular line[89] appears as a broad stripe above the legs.
We thus see that also in the genus Pterogon the marking of the caterpillars commences with a longitudinal line formed from the subdorsal; an infra-spiracular or also a supra-spiracular line (Gorgoniades) being added.
Stellatarum in form and marking, but the subdorsal line appears much less distinctly defined, and the dorsal and spiracular lines seem to be entirely absent.
A very fine white line now connected the spiracles (infra-spiracular line), and could be traced from the last segment to the head.
A subdorsal, accompanied by a spiracular line, extends from the caudal horn to the first segment.
The first moult occurs after four days, and immediately after this there is still an absence of distinct markings, with the exception of a greenish-white spiracular line.
Besides these markings, there was only to be seen a yellowish-white spiracular line.
The first and oldest marking of the caterpillars of the Sphingidæ was therefore the longitudinal striping, or, more precisely speaking, the subdorsal, to which dorsal and spiracular lines may have been added.
The spiracular line, formerly green alternating with yellow, generally becomes resolved into a row of reddish-yellow spots.
In the white dotted paler green forms there are several transverse whitish lines, some of them wavy, between the yellowish spiracular line and the dark green line along the middle of the back; head, marked with black on each cheek.
It is of a bluish hue along the back, and marked with three lines, the central one greenish and the others whitish and broad; there are sometimes reddish markings low down on the sides, just edging the broad white spiracular line.
The caterpillar is reddish brown, with a chain of oval, olive-brown spots along the back; there are also two brownish interrupted lines; the spiracular line is white.
Thus thespiracular marks are of the same character on each segment.
Symmetry was a necessary consequence, for like parts were decorated alike, and this symmetry was carried out in detail apparently for the sake of beauty, as in the spiracular markings of many larvae.
In front of the first functional cleft (the hyobranchial) there is laid down in the embryo the rudiment of a spiracular cleft.
Traces of what appear to be pre-spiracular clefts exist in the embryos of various forms.
The jugal bone, however, is not, as it is in the Elephant, placed in the middle of the somewhat massive zygomatic arch.
The individual hairs are stiff, and one inch and a half in length.
It will burrow up to a decaying carcase like the ground-beetles.
The supra-spiracular line also becomes broken up into numerous short lengths, whilst the green ground-colour in some specimens becomes more or less replaced by a brownish shade extending from the back to the sides.
Small white warts are arranged in rows from the dorsal to the spiracular line, and again underneath this line on the abdominal legs.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "spiracular" in a variety of sentences. We hope that you will now be able to make sentences using this word.
