Paulraj SABATINA, Madapuji Rajagopalan SRINIVASAN, Marimuthu MURUGAN, Vangili Ramasamy SAMINATHAN

DIVERSITY OF STINGLESS BEES, Tetragonula sp. (HYMENOPTERA: APIDAE) IN TAMIL NADU, INDIA

The present study was conducted to find the diversity of stingless bees (Tetragonula sp.) in Coimbatore, Madurai, Dindigul, and Trichy districts in Tamil Nadu, India. Adult worker bees were collected from feral stingless bee colonies from 16 locations, four from each district. The collected stingless bees were preserved in 70% alcohol (ethanol) and examined under a Leica stereo zoom microscope. Seventeen morphometric key characteristics were measured to know the diversity of stingless bees. The results revealed that two species of stingless bees, Tetragonula iridipennis and T. laeviceps were prevalent in the four selected districts of Tamil Nadu. Four vital morphometric characters of the worker bees namely the head width, the forewing length, the hind tibial length, and the whole body length helped to distinguish the two Tetragonula sp. Among all the locations, the bees collected from L1- Insectary, TNAU, Coimbatore had much higher values of the above four morphometric characters (1.67mm ± 0.04, 3.69mm ± 0.02, 1.53mm ± 0.01 and 3.98mm ± 0.14 respectively) and were identified to be T. laeviceps based on these key morphometric characters. The bees from rest of the 15 locations which had the morphometric values 1.59 to 1.61 mm, 3.20 to 3.41mm, 1.34 to 1.43mm and 3.51 to 3.65mm respectively were categorized as T. iridipennis.

Keywords:

Stingless bees Tetragonula sp., Diversity, Tamil Nadu, Morphometric Characters,

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Danaraddi CS, Viraktamath S. Morphometrical studies on the stingless bee, Trigona iridipennis Smith. Karnataka Journal of Agricultural Sciences 2009;22(4):796-797
Devanesan S, Shailaja KK, Raakhee M, Bennet R and Premaila KS. Morphometric characters of the queen and worker of stingless bees, Trigona iridipennis Smith. Insect Environment 2003;9(4):154-155
Kishan Tej M, Srinivasan MR, Vijayakumar K, Natarajan N, and Mohan Kumar S. Morphometry analysis of stingless bee Tetragonula iridipennis Smith. International Journal of Current Microbiology and Applied Sciences. 2017;6(10):2963-2970
Michener CD. The Bees of the World. John Hopkins University Press, Baltimore-London, 2007, s.953
Raakhee M, Devanesan S. Studies on the behavior of the stingless bee, Trigona iridipennis Smith (Apidae: Meliponinae). Indian Bee Journal 2000;62:59-62
Rahman A, Das PK, Rajkumari P, Saikia J, and Sharmah D. Stingless bees (Hymenoptera: Apidae: Meliponini): diversity and distribution in India. Apidologie, 2015;39:102-118
Rasmussen C. Stingless bees (Hymenoptera: Apidae: Meliponini) of the Indian subcontinent: Diversity, taxonomy and current status of knowledge. Zootaxa, 2013;3647(3):401-428
Sakagami SF. Tetragonula Stingless Bees of the Continental Asia and Sri Lanka (Hymenoptera, Apidae). Zoology, 1978;21(2):165–247
Smith DR. Key to Workers of Indo-Malayan Stingless Bees. For use in the Stingless Bees Workshop, 2012;1(1):1–42
Swaminathan T. Studies on stingless bees. M. Sc. (Ag) Thesis, Tamil Nadu Agricultural University, Coimbatore, 132 p. 2000
Trianto M, Marisa M and Kisman MD. Tetragonula laeviceps (Hymenoptera: Apidae: Meliponini): Morphology, Morphometric, and Nest Structure. Bioeduscience, 2020;4(2):188-194
Vijayakumar K, Jayaraj R. Geometric morphometry analysis of three species of stingless bees in India. International Journal for Life Sciences and Educational Research, 2013;1(2):91-95
Viraktamath S, Roy J. Description of five new species of Tetragonula (Hymenoptera: Apidae: Meliponini) from India. Biologia, 2022;77:1769–1793