| 单词 | prothorax |
| 例句 | Magnified. b, spiracle on prothorax; c, protruded head region; d, tail-end with functional spiracles; e, f, head region with mouth hooks protruded; g, hooks retracted; h, eggs. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4 "Hero" to "Hindu Chronology" 2012-04-04T02:00:56.447Z As in the true Mantis, the prothorax of these insects is greatly elongated and the first pair of legs are fitted for grasping. Directions for Collecting and Preserving Insects 2012-03-28T02:00:31.483Z For, commencing on the level of the beach, the usual type is broad, flat, more or less opake, with the prothorax almost impunctate, and the elytra soldered together. On the Variation of Species, with Especial Reference to the Insecta ; Followed by an Inquiry into the Nature of Genera 2012-01-17T03:00:21.933Z The body is long and cylindrical, consisting of thirteen segments; the head is armed with powerful jaws; the three following segments, the future prothorax, mesothorax, and metathorax, each bears a pair of simple articulated legs. On the Origin and Metamorphoses of Insects 2011-12-05T03:00:46.667Z The prothorax bears the first pair of legs. Butterflies Worth Knowing 2011-08-10T02:00:15.887Z The abdomen is oval, sandy-grey in hue and beset with warts and bristles; the prothorax forms a mobile neck for the large square head, which carries a pair of long and powerful toothed mandibles. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" The head is comparatively small, and excavated posteriorly, connected very slightly with the prothorax, on which it turns almost as on a pivot. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 6 "Dodwell" to "Drama" The Buprestidae are distinguished from the Elateridae by the immobility of the prosternal process in the mesosternal cavity and by the absence of the lateral processes at the hind corners of the prothorax. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" The head is large, rounded, slightly wider than the prothorax and of a rather brighter red. The Glow-Worm and Other Beetles Anatomically the thorax is divided into three parts—the prothorax, the mesathorax, and the metathorax; but the lines of division between these parts are not easily seen without denuding the skin of its hairy covering. Butterflies Worth Knowing 2011-08-10T02:00:15.887Z Cephalic foramen: the posterior or occipital foramen of head through which the dorsal vessel, oesophagus, salivary ducts and ventral nerve cords pass from head to prothorax. Explanation of Terms Used in Entomology The prothorax is extremely small, consisting of only a narrow ring. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 6 "Dodwell" to "Drama" The prothorax is large and “free,” i.e. readily movable on the mesothorax, an arrangement usual among insects with the power of rapid running. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" The prothorax is wider than the head, but is narrower in front than at the base and is slightly rounded at the sides. The Glow-Worm and Other Beetles These beetles, when irritated, make a squeaking chirrup by rubbing together the prothorax and mesothorax. The Dawn of Reason or, Mental Traits in the Lower Animals Cervical shield: the ebitinous plate on the prothorax of caterpillars just behind the head: = prothorax shield. Explanation of Terms Used in Entomology Thorax rounded above, not margined, gradually narrowed posteriorly; the prothorax of the same width as the head, its lateral angles toothed; the disk with a circular striation. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology The larvae are more specialized than those of other Adephaga, the head and prothorax being very large and broad, the succeeding segments slender and incompletely chitinized. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" Many of the names which he proposed are still in use; it was he who introduced the terms prothorax, mesothorax, and metathorax, for the three segments of the insect's thorax. Form and Function A Contribution to the History of Animal Morphology Behind the corselet, under the pointed roof of the prothorax, a series of pulsations is produced by alternate inflation and deflation. Social Life in the Insect World Lateral carinae: in Orthoptera; on the head, extend downward from the front margin of the eyes: on prothorax extend along each lateral margin of the dorsum. Explanation of Terms Used in Entomology Thorax: the prothorax subelongate, narrowed anteriorly; the wings subhyaline, their apex clouded; the intermediate and posterior tibiæ with a double row of spines; all the tarsi simple; the calcaria stout and elongate. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology The prothorax is convex in front, and is usually drawn out behind into a prominent process on either side, while the elytra are elongate and tapering. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" In a young grasshopper, for example, the feelers are relatively stouter than in the adult, and the prothorax does not show the specifically distinctive shape with its definite keels and furrows. The Life-Story of Insects When at rest it sits upon the four posterior legs, with the head and prothorax nearly erect, and the anterior feet folded backward. Scientific American Supplement, No. 385, May 19, 1883 Occipital foramen: the opening in the occiput, opposed to a similar opening in the prothorax: = foramen magnum. Explanation of Terms Used in Entomology Thorax elongate, narrowest in the middle, the prothorax forming a neck anteriorly; legs elongate and very slender. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology The larvae have soft, fleshy bodies, with the head and prothorax large and broad, and the legs very much reduced. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" The head, if rather narrow, is distinct, and beneath the prothorax is a characteristic sclerite known as the 'anchor process' or 'breast bone.' The Life-Story of Insects The Praying Mantis is a bright green; she boasts an elongated prothorax and an alert gait. More Hunting Wasps Ora: a border: specifically in some Coleoptera, the lateral margin of prothorax. Explanation of Terms Used in Entomology The lateral angles of the anterior margin of the prothorax acute, the metathorax armed with two long acute spines. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Or ridged areas on the sides of the prothorax may be scraped by “files” on the front thighs, as in some ground-beetles. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" In the adult, however, while the cuticle of the prothorax remains firm, that of the two hinder thoracic and of all the abdominal segments is somewhat thin and delicate on the dorsal aspect. The Life-Story of Insects A narrow and very long prothorax divides the front pair of legs from the two hinder pairs. More Hunting Wasps Principal sulcus: in Orthoptera, a transverse impression of the prothorax, at or behind the middle. Explanation of Terms Used in Entomology The prothorax with a circular striation above; behind, the thorax is compressed, the sides being obliquely striated, the striæ uniting and crossing the central ridge of the thorax. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Amplected: when the head is received into a concavity of the prothorax; e.g. Explanation of Terms Used in Entomology Ampulla: Orthoptera; an extensile sac between head and prothorax used by the young in escaping from oötheca, and later, in molting: Heteroptera; a blister-like enlargement at the middle of the anterior margin of the pro-thorax. Explanation of Terms Used in Entomology There is a long neutral interval, that of the prothorax, into which it is quite useless to drive the sting. More Hunting Wasps Umbones: two movable spines on the sides of prothorax in some Coleoptera. Explanation of Terms Used in Entomology Obscure steel-blue, with shades of green, purple and violet; the head and thorax punctured; the prothorax with an oblique smooth shining space on each side; the wings very dark brown, with a brilliant coppery effulgence. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Fossula -ae: a deep groove or sinus with sharp edges: specifically applied to grooves on the head or sides of prothorax in which the antennae are concealed. Explanation of Terms Used in Entomology Manitrunk: that part of trunk that bears the anterior legs: =prothorax. Explanation of Terms Used in Entomology All the segments, excepting the last three, were stung from front to back, beginning with the prothorax. More Hunting Wasps Jugulum: that sclerite just behind the sub-mentum; =gula: that cavity of the posterior part of the head to which the neck is annexed: the lateral and under parts of the prothorax. Explanation of Terms Used in Entomology The anterior margin of the prothorax slightly rebordered; the wings hyaline and iridescent, with a fuscous stain along the anterior margin of the superior pair; the metathorax abruptly truncate. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Orthoptera: straight winged: an ordinal term applied to insects in which the primaries are not used in flight, but cover the longitudinally folded secondaries; mouth mandibulate; head set into prothorax, the latter free; metamorphosis incomplete. Explanation of Terms Used in Entomology Prothoracic glands: occur in Orthoptera, on the sides of prothorax in certain Phasmid genera. Explanation of Terms Used in Entomology The point wounded has never varied in the series of combats under glass: it occupies the middle of the line of demarcation between the prothorax and the mesothorax, on the ventral surface. More Hunting Wasps Metazona: in Orthoptera, the dorsal surface of the prothorax behind the principal sulcus. Explanation of Terms Used in Entomology Thorax: the posterior margin of the prothorax arched; the anterior and intermediate tibiæ and tarsi and the femora at their apex beneath, also the posterior femora, pale ferruginous; the wings subhyaline, the nervures dark fuscous. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Prozona: in Orthoptera, the upper or dorsal surface of prothorax in front of the principal sulcus. Explanation of Terms Used in Entomology If I were one to stand on trifles, I might observe that in front of the prothorax, under the throat, is an accessible spot and that the Cerceres will have nothing to do with it. More Hunting Wasps These mailed ones hardly give the sting a chance, save behind the prothorax, the point at which the lancet is actually directed. More Hunting Wasps Manubrium: in Coleoptera: that part of the mesosternum in Elateridae which forms the process for fitting into the cavity of the prothorax: in Collembola the basal part of the furculum. Explanation of Terms Used in Entomology Her prothorax is short and her movements heavy. More Hunting Wasps The other two, divided from the first by the whole length of the prothorax, each face the origin of the corresponding legs; consequently they are very near each other. More Hunting Wasps |
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