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''Thorax porcellana'' Saussure is a species of epilamprid cockroach occurring in Sri Lanka and India. Both sexes are fully winged, but only the male takes flight, and then rarely and on short flights. 〔"Cockroaches - Ecology, Behaviour, and Natural History" - Bell, Roth & Nalepa (Johns Hopkins University Press, 2007)〕 Louis M. Roth speculated in 1981 that the arched tegmina found in ''Phoraspis'' and ''Thorax'' were similar to that of ''Phlebonotus pallens'' and would suggest similar maternal care. The Indian entomologist S. Bhoopathy confirmed in 1998 that this ovoviviparous species carries some 30-40 hatchling nymphs for their first two instars in a special recess under the domed forewings on the dorsum of the mother. During their stay of about 7 weeks they drink a pinkish liquid secreted from between the tergites of their mother’s abdomen. They also use their relatively long, sharp, mandibular tooth-like processes to pierce the mother’s cuticle and feed directly on her haemolymph. These 'teeth' are lost after two instars when there is no longer a close association with the mother. 〔(【引用サイトリンク】title=genus Thorax Saussure, 1862: Blattodea Species File )〕〔(【引用サイトリンク】title=Breeding ecology of the rainforest dung beetle Cephalodesmius armiger (Scarabaeidae) in Tooloom National Park - ResearchGate )〕〔(【引用サイトリンク】title=Zachowania społeczne karaczanów - karaczany.terrarium.pl )〕 . Parental care among cockroaches, where offspring are fed on bodily secretions, is not rare, and has been recorded in ''Perisphaerus'', ''Trichoblatta'', ''Pseudophoraspis'', ''Phlebonotus'', ''Gromphadorhina'', ''Solganea'', ''Cryptocercus'' and ''Blattella'', whereas biparental care is found only in wood-eating cockroaches - wood is low in nutrients and is made assimilable by micro-organisms in the adult gut. ==External links== *(Images ) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Thorax porcellana」の詳細全文を読む スポンサード リンク
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