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A new cockroach, with bipectinate antennae, (Blattaria: Olidae fam. nov.) further highlights the differences between the Burmite and other faunas

Biologia, ISSN: 1336-9563, Vol: 72, Issue: 11, Page: 1327-1333
2017
  • 34
    Citations
  • 0
    Usage
  • 15
    Captures
  • 5
    Mentions
  • 0
    Social Media
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Metrics Details

  • Citations
    34
    • Citation Indexes
      34
  • Captures
    15
  • Mentions
    5
    • References
      5
      • Wikipedia
        5

Article Description

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 theMyanmar 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.

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