Two new species of Bryophaenocladius Thienemann (Diptera: Chironomidae: Orthocladiinae) from Darjeeling and Kolkata, West Bengal, India with a note on biology of montane species

Authors

  • Dipak Kumar Som
     Postgraduate Department of Zoology Maulana Azad College, Kolkata, India
  • Tuhar Mukherjee
     Postgraduate Department of Zoology Maulana Azad College, Kolkata, India
  • Torpita Das
    Postgraduate Department of Zoology Maulana Azad College, Kolkata, India
  • Rima Chakraborty
     Postgraduate Department of Zoology Maulana Azad College, Kolkata, India

DOI:

https://doi.org/10.26515/rzsi/v123/i2S/2023/172594

Keywords:

Chironomidae, Orthocladiinae, Bryophaenocladius, new species, chironomid biology.

Abstract

Two new species of Bryophaenocladius are proposed and described from West Bengal, India. Bryophaenocladius kolkataensis sp.nov. is reported as first Orthoclad from metropolitan areas of Kolkata while B. pollexus sp.nov. is reported from the montane regions of Eastern Himalayas biodiversity hotspot. The two species can be separated from other species of Bryophaenocladius by the presence of unique inferior volsella and gonostylus. A brief note on the biology of B. pollexus sp. nov. with special reference to its habitat preference, larval behaviour and adult swarming has been incorporated. DNA barcode of B. kolkataensis sp. n. is also given. A taxonomic key to the adult males of 14 Oriental species of the genus Bryophaenocladius is also provided.

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Published

2023-07-01

How to Cite

Kumar Som, D., Mukherjee, T., Das , T., & Chakraborty, R. (2023). Two new species of <i>Bryophaenocladius</i> Thienemann (Diptera: Chironomidae: Orthocladiinae) from Darjeeling and Kolkata, West Bengal, India with a note on biology of montane species. Records of the Zoological Survey of India, 123(2S), 645–656. https://doi.org/10.26515/rzsi/v123/i2S/2023/172594

Issue

Volume 123, Issue 2S, Special Issue 2023

Section

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