A new cockroach, with bipectinate antennae,(Blattaria: Olidae fam. nov.) further highlights the differences between the Burmite and other faunas
A new cockroach, with bipectinate antennae,(Blattaria: Olidae fam. nov.) further highlights the differences between the Burmite and other faunas
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DOI：
10.1515/biolog-2017-0144
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发表时间：
2017-11
期刊：
影响因子：
1.5
通讯作者：
P. Vršanský;Bo Wang
中科院分区：
文献类型：
--
作者：
P. Vršanský;Bo Wang
在蟑螂3.2亿年的历史中，只有少数几个科被发现。第31个品种，以缅甸琥珀中独型的Ol xiai sp. n.为代表。它栖息在靠近海岸的低地森林里。它具有一些独特的形态特征，包括双栉状的触角，圆形的端柄，复杂的前翼形状，破碎的R和CuP形成一个明显的未硬化区，RS向两侧分支，巨大的前胫距。新属也显示了几个假定的非形性的减少（短触角，初步股骨末端棘，短前毛，小毛羽，短触须）。与早期蚁巢寄生虫（短触角，密集的前额绒毛，不规则的翼脉间距，斑点色的迹象）的突触形态表明，早白垩纪时期起源于扁虫科或中扁虫科祖先。没有明显的似形性。附着的螨虫记录了一个关于雄性的虚假信息。在给定的知识状态下，一个球虫雄性的共包涵在生态学上是没有信息的。
Abstract Only a few families have been recognized in the 320 million year history of cockroaches. The 31st one, represented by monotypic Ol xiai sp. n. from the Myanmar amber is described here. It inhabited lowland forest near the shore. It possesses several unique morphological features including bipectinate antennae, round terminal palpomeres, sophisticated forewing shape with broken R and CuP forming a distinct unsclerotised area and with RS branched to both sides, and a huge foretibial spur. The new genus also displays several putatively apomorphic reductions (short antennae, rudimental femoral terminal spine, short pronotal chaetae, minor arolia, short palps). Synapomorphies with early ant-nest parasites (short antennae, dense pronotal setosity, irregular spacing of wing veins, indication of maculated colouration) suggest an origin from Blattidae or ancestral Mesoblattinidae during the Early Cretaceous. No plesiomorphies are apparent. An attached mite documents a phoresy on males. A syninclusion of a coccoid male is not ecologically informative at the given state of knowledge.