TY - JOUR T1 - Ovarian development and correlated changes in hemolymphatic ecdysteroid levels in two spiders, Coelotes terrestris and Tegenaria domestica (Araneae, Agelenidae) JF - General and Comparative Endocrinology Y1 - 1992 A1 - Trabalon, M. A1 - Bautz, A. M. A1 - Moriniere, M. A1 - Porcheron, P. SP - 128 EP - 136 KW - Coelotes terrestris KW - Coelotes terrestris (Araneae). KW - ecdysteroid levels correlated changes]. KW - ecdysteroid levels related to oogenesis] [Oogenesis / / Haemolymphatic KW - Endocrinology KW - Gametogenesis KW - Reproduction KW - Tegenaria domestica (Araneae). KW - Tegenaria domestica [Hormones / / Haemolymphatic AB - Oocyte development during the first vitellogenic cycle of Coelotes terrestris and Tegenaria domestica is described. Under the present conditions, this development took about 40 days during which the oocytes went through six stages of maturation. For the first time presence of ecdysteroids is reported in adult females of spiders. Hemolymphatic ecdysteroid peaks were observed in both species at the transition between previtellogenesis and vitellogenesis. 20-Hydroxyecdysone and ecdysone were present in slightly different ratios in C. terrestris as well as T. domestica. These data largely agree with current views of ovarian development in Arthropods. VL - 88 SN - 0016-6480 UR - ://ZOOREC:ZOOR12900050746 N1 - ZOOR12900050746 ER -