Discovery of a New Gall-Inducing Species in the Inquiline Tribe Synergini (Hymenoptera: Cynipidae): Inconsistent Implications From Biology and Morphology
Discovery of a New Gall-Inducing Species in the Inquiline Tribe Synergini (Hymenoptera: Cynipidae): Inconsistent Implications From Biology and Morphology
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DOI：
10.1603/an10149
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发表时间：
2011-03-01
影响因子：
2.3
通讯作者：
Wachi, N.
中科院分区：
文献类型：
--
作者：
Abe, Y.;Ide, T.;Wachi, N.
记述了一新种，伊东合蝽Synergus itoensis Abe，Ide & Wachi，sp. nov.日本被描述。成虫的形态特征清楚地表明，这个新种被分配到Synergus Hartig，1840，Synergini的成员都被称为inquilines。田间观察表明，该瘿蜂成虫在万年青栎栎（Quercus（Cyclobalanopsis）glauca Thunberg）地面上的羽化与夏末新鲜橡子的快速生长期同步。饲养试验表明，S. itoensis在栎属Q.（C.）在田间条件下，此外，在这种瘿蜂中发生了寄生，并且瘿诱导对橡子大小没有显著影响。从生物学特征与形态学特征的不一致性来看，S. Itoensis，胆囊诱导能力可能已经恢复内Synergini。讨论了橡子瘿诱导的优缺点。
A new gall-inducing species of the inquiline tribe Synergini (Hymenoptera: Cynipidae), Synergus itoensis Abe, Ide & Wachi, sp. nov., from Japan is described. The morphological features of the adult clearly indicate that this new species is assigned to the genus Synergus Hartig, 1840, and members of Synergini have all been known as inquilines to date. Field observation showed that adult emergence of this gall wasp from acorns of the evergreen oak, Quercus (Cyclobalanopsis) glauca Thunberg, on the ground is well synchronized with the rapid growth period of fresh acorns in late summer. A rearing experiment demonstrated gall induction by S. itoensis in the seed coat of the acorn of Q. (C.) glauca under field conditions. Moreover, the occurrence of arrhenotoky in this gall wasp and lack of a significant effect of gall induction on acorn size were indicated. Judging from the inconsistency of biological and morphological features in S. itoensis, gall-inducing ability might have been regained within Synergini. The advantages and disadvantages of gall induction in acorns are discussed.