A new form of maternal provisioning of newly hatched nymphs is described in the ovoviviparous cockroach Gromphadorhina portentosa. Shortly after expelling the hatching egg case, the female exudes from her abdominal tip a whitish, translucent material on which neonates actively feed. Integumentary gland cells lining the brood sac are the most likely source of the secretion. This form of maternal provisioning may not be restricted to the Madagascar hissing cockroach; a glandular brood sac similar to that of G. portentosa is found in at least three additional ovoviviparous cockroaches.
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Capital Normal Univ, Coll Life Sci, Beijing 100048, Peoples R ChinaCapital Normal Univ, Coll Life Sci, Beijing 100048, Peoples R China
Gao, Taiping
Shih, Chungkun
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Capital Normal Univ, Coll Life Sci, Beijing 100048, Peoples R China
Smithsonian Inst, Natl Museum Nat Hist, Dept Paleobiol, Washingto, DC 20013 USACapital Normal Univ, Coll Life Sci, Beijing 100048, Peoples R China
Shih, Chungkun
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Labandeira, Conrad C.
Liu, Xin
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Capital Normal Univ, Coll Life Sci, Beijing 100048, Peoples R ChinaCapital Normal Univ, Coll Life Sci, Beijing 100048, Peoples R China
Liu, Xin
Wang, Zongqing
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Southwest Univ, Coll Plant Protect, Inst Entomol, Chongqing 400716, Peoples R ChinaCapital Normal Univ, Coll Life Sci, Beijing 100048, Peoples R China
Wang, Zongqing
Che, Yanli
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Southwest Univ, Coll Plant Protect, Inst Entomol, Chongqing 400716, Peoples R ChinaCapital Normal Univ, Coll Life Sci, Beijing 100048, Peoples R China
Che, Yanli
Yin, Xiangchu
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Chinese Acad Sci, Northwest Inst Plateau Biol, 23 Xinning Rd, Xining 810008, Qinghai, Peoples R ChinaCapital Normal Univ, Coll Life Sci, Beijing 100048, Peoples R China
Yin, Xiangchu
Ren, Dong
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Capital Normal Univ, Coll Life Sci, Beijing 100048, Peoples R ChinaCapital Normal Univ, Coll Life Sci, Beijing 100048, Peoples R China