| 释义 |
epipharynx Zool.|ɛpɪˈfærɪŋks|
[f. epi- 1 + pharynx b.]
In insects, a membranous lining (see quot. 1826); esp. in Diptera, a piercing organ (see quot. 1897); also in Arachnida, a chitinous plate (see quot. 1909).
1826Kirby & Spence Introd. Entomol. III. xxxiii. 359 Epipharynx (the Epipharynx). A small valve under the Labrum, that in many Hymenoptera closes the Pharynx, and is an appendage of its upper margin. 1897Parker & Haswell Text-bk. Zool. I. xi. 592 A projection of the roof of the mouth cavity (epipharynx) is present in some Insects. 1909Cambr. Nat. Hist. IV. xviii. 459 In those free living Mites which have undergone no great modification of the mouth parts two other portions can be distinguished, the upper lip or ‘epipharynx’, and the ‘lingua’. 1957Richards & Davies Imms's Textbk. Ent. (ed. 9) iii. 589 (Diptera) The labrum..is dorsally well sclerotized but ventrally more membranous, this surface sometimes being termed the epipharynx. Ibid. 669 (Siphonaptera) The epipharynx is a long slender organ which is ventrally grooved. Ibid. 676 (Hymenoptera) An epipharynx is well developed and trilobed in the higher forms, the median lobe being pointed and projecting. 1962Science Survey XVII. 273 The flow of air passes between the floor of the pharynx and the little flap-like epipharynx, and is interrupted by movements of the latter. |