Forficula mikado Burr, 1904 キバネハサミムシ
Original description: Forficula mikado Burr, 1904.
Burr M (1904) Observation of the Dermaptera, including revisions of several Gerera, and descriptions of New Genera and Species. Transaction of the Entomological Society of London1904 (2): 277–322. (pp. 319–320)
Burr M (1904) Observation of the Dermatoptera, including revisions of several Gerera, and descriptions of New Genera and Species. Transaction of the Entomological Society of London 1904 (2): 277–322.
(pp. 319–320)
Forficula mikado, sp. n.
Statura robusta; colore rufo-castaneo, elytris alisque pallidoribus. Caput fusco-rufeum, suturis haud perspicuis; antennae brunneae, 12-segmentatae, segemnt 2 minio, 4 quam tertium paullo breviori. Pronotum latum, capite vix angustius, fusco-rufum, pallido-marginatum, margine antico recto, angulis haud rotundatis, margine postico angulisque posticis rotundatis, prozona tumida, interdum utrinque tuberculo minimo indistincto instructa, metazona deplanata, lateribus reflexis. Elytra unicoloria fusca vel fusco-testacea; alae fusco-testaceae. Pedes longi, fusci vel fusco-testacei. Abdomen fusco-castaneum, nitens, pone medium paullo dilatatum, plicis lateralibus distinctis; segmentum ultimum dorsale ♂ transversum, latum, breve, medio impresso, sulculo obsoleto instructum, margine ipso postico medio triangulariter reflexo, ytrinque supra insertionem forcipis obtuse-tuberculato; segmentum penultium ventrale transverso ovale, ultimum totum obtegens. Pygidium ♂ breve, quadratum, prominens, angulis posticis tuberculo minimo obsoleto instructis. Forcipis bracchia ♂ depressa, elongata, basi ipso dilatata ac deplanata, hac parte dilatata dente interno obtuso terminata; dehinc bracchia recta, inermia, simplicia, deplanata, apicibus ipsis incurvis, haud decussatis. ♂. ♀ ignota.
♂
Long. corporis . . . 8–11 mm.
„ forcipis . . . 3–6 mm.
Hab. Japan, Central; 7 ♂♂ and a fragment (J. Harmandi, 1900)
This species presents the same dimorphism that is common in many earwigs, that is, there are two forms, macrolabia and microlabia. It is a very distinct species, distinguished by the unspotted elytra, compressed body, square pygidium, and the form of the forceps. It is, perhaps, in intermediate form between F. lurida or F. auricularia and F. smyrnenesis.
Literature 文献
Burr M (1904) Observation of the Dermaptera, including revisions of several Gerera, and descriptions of New Genera and Species. Transaction of the Entomological Society of London 1904 (2): 277–322.