【摘要】 实验室恒温条件下,研究了园蛛属3种园蛛——角园蛛(Araneus cornutus),叶斑园蛛(A.sta),大腹园蛛(A.ventricosus)的各龄幼蛛。描述它们各自的形态特征;指出它们之间的形态差异。更多还原

【Abstract】 This paper studies, under constant temperature in lab, spiderlings of three species of Araneus A. cornutus iA. sia , A. ventricosus. Morphological ideographs of spiderlings’ back in different instars,has been drawn and morphological charalters of them are dlescribed in details. After contrasted,the differences among them have been pointed out.更多还原