世界のトンボ分布目録 = A distributional list of world Odonata

The abundance and diversity of odonate fauna were studied in four selective spots of Chittagong University Campus, Chittagong, Bangladesh from August’2016 to July’2017. A total of 928 individuals of odonates under three families was collected during the study period from the four sampling sites. Out of 25 species identified one belonged to the family Gomphidae, 13 belonged to family Libellulidae and 11 belonged to family Coenagriidae. The abundance of odonate species was highest in July’17 (13.04%) and was lowest in December’16 (4.96%). Spot 2 was a hotspot for odonates as highest number (370) was collected from this spot. A total of 196, 188 and 174 individuals were collected from Spot 4, Spot 3 and Spot 1, respectively. The members of Libellulidae (472) were dominant followed by Coenagriidae (406) and lastly Gomphidae (50). Highest species richness (SR), species diversity (H′) and species evenness (J′) values were observed in the months of May’17 (1.56±0.08), May’17 (1.29±0.08) and December’16 (0.96±0.03), respectively. But lowest such values were observed in December’16 (0.96±0.05), November’16 (0.90±0.02) and May’17 (0.81±0.05), respectively. Amongst the spots, highest SR, H′ and J′, values were observed in Spot 4 (1.40±0.10), Spot 2 (1.22±0.05) and Spot 1 (0.93±0.02), respectively, whereas, lowest such values were observed in Spot 1 (1.02±0.08), Spot 1 (1.01±0.04) and Spot 4 (0.82±0.02), respectively. Ecological conditions and seasonal fluctuation had great impact on the abundance and diversity of odonates. J. Biodivers. Conserv. Bioresour. Manag. 2018, 4(1): 55-62

/pdf/odonate-abundance-and-diversity-in-four-selective-spots-of-g3hfbthu3r.pdf

Odonate abundance and diversity in four selective spots of Chittagong University campus

Seventeen species of dragonflies collected from Bangladesh are listed. The dragonflies collected from IPSA and the other points in Bangladesh are identified and listed below. In this list, the collecting sites of some institutes are abbreviated as follows: IPSA (Institute of Postgraduate Study in Agriculture, Gazipur Dist.); MRS., Nawabganj (Mango Research Station, Chapai Nawabganj, Nawabganj Dist.); SRTI, Ishurdi(Sugarcane Research and Training Institute, Ishurdi, Pabna Dist.). Family Agrionidae 1. Ceriugrion coromandeliunum (Fabricius) [Indo-ki-ito-tonbo] Specimens examined. 1 male, 1 female, IPSA, 2. xi. 1993, S. Nomura leg.; 1 male, 1 female, SRTI, Ishurdi, 13-16. xi. 1993, S. Nomura leg.; 1 male, 2 females, Botanical Garden, Dhaka C., 13. ii. 1993, 0. Tadauchi leg. 2. Zschnuru aurora aurora (Brauer) [Kibara-ito-tonbo] Specimens examined. 3 males, IPSA, 1. xi. 1993, S. Nomura leg.; 4 males, 1 female, IPSA, 2. xi. 1993, S. Nomura leg.. Distribution. Oriental and Australian Regions. 1) Contribution from the Entomological Laboratory, Faculty of Agriculture, Kyushu University, Fulcuoka (Ser. 4, No. 83). 136 S. NOMURA & Md. Z. ALAM 3. Agriocnemis pygmaea (Rambur) [Hime-ito-tonbo] Specimens examined. 2 males, 4 females, IPSA, 1. xi. 1993, S. Nomura leg.; 11 males, 5 females, IPSA, 2. xi. 1993, S. Nomura leg. Distribution. Oriental and Australian Regions. 4. Pseudagrion microcephalum (Rambur) [Ao-naga-ito-tonbo] Specimens. examined. 1 male, 1 female, Balda Garden, Dhaka C., 29. x. 1993, S. Nomura leg. Distribution. Oriental and Australian Regions. 5. Pseudagrion laidlawi Fraser Specimens examined. 1 male, 1 female, IPSA, 1. xi. 1993, S. Nomura leg.; 1 female, IPSA, 2. xi. 1993, S. Nomura leg. Family Libelluridae 6. Diplucodes trivialis (Rambur) [Hime-tonbo] Specimens examined. 1 female, IPSA, 4. xi. 1993, S. Nomura leg.; 1 male, 2 females, IPSA, 2. xii. 1994, S. Nomura leg.; 1 female, SRTI, Ishurdi, 13-16. xi. 1993, S. Nomura leg.; 1 female, Bhowal forest, Gazipur Dist., 28. xi. 1993, S. Nomura leg.. Distribution. Oriental Region, China, India, Bangladesh. 7. Bruchythemis contuminatu (Fabricius) [Hime-ki-tonbo] Specimens examined. 1 female, IPSA, 4. xi. 1993, S. Nomura leg.; 2 females, IPSA, 2. xii. 1994, S. Nomura leg. Distribution. Southeast Asia, India, Bangladesh. 8. Crocothemis servilia servilia (Drury) [Syoujou-tonbo] Specimens examined. 1 female, IPSA, 4. xi. 1993, S. Nomura leg.; 1 male, 1 female, IPSA, 2. xii. 1994, S. Nomura leg.; 1 male, SRTI, Ishurdi, 13-16. xi. 1993, S. Nomura leg.. Distribution. Japan, Taiwan, China, Southeast Asia, India, Bangladesh. 9. Orthetrum pruinosum neglectum (Rambur) [Kofuki-syoujou-tonbo] Specimens examined. 3 males, Satchari forest, Hobiganj Dist., 8-10. xi. 1993, Md. Z. Alam & S. Nomura leg. Distribution. Japan (Ryukyu), Taiwan, China, Indo-china, Tibet, Burma, India, Sri Lanka, Bangladesh. 10. Orthetrum sabina sabina (Drury) [Haraboso-tonbo] Specimens examined. 2 females, Satchari forest, Hobiganj Dist., 8-10. xi. 1993, Md. Z. Alam & S. Nomura leg.; 1 male, Bhowal forest, Gazipur Dist., 28. xi. 1993, S. Nomura leg.; 1 male, 1 female, Jaintapur, Sylhet Dist., 9. xi. 1993, Md. Z. Alam leg.; 1 male, Balda Garden, Dhaka C., 29. x. 1993, S. Nomura leg. DRAGONFLIES OF BANGLADESH 137 Distribution. Oriental, Australian and Ethiopian Regions. 11. Crutilla Zineata (Brauer) [Usuguro-tonbo] Specimens examined. 1 male, 1 female, MRS, Nawabganj, 15. xi. 1993, S. Nomura leg.; 1 female, SRTI, Ishurdi, 13-16. xi. 1993, S. Nomura leg.; 2 females, Bhowal forest, Gazipur Dist., 28. xi. 1993, S. Nomura leg. 12. Tholymis tillurgu (Fabricius) [Ame-iro-tonbo] Specimens examined. 1 male, 1 female, Balda Garden, Dhaka C., 29. x. 1993, S. Nomura leg.; 1 male, 2 females, Bhowal forest, Gazipur Dist., 28. xi. 1993, S. Nomura leg.. Distribution. Oriental, Australian and Ethiopian Regions. 13. Tremea basilaris burmeisteri Kirby Specimens examined. 1 male, 1 female, MRS, Nawabganj, 15. xi. 1993, S. Nomura leg.; 1 female, SRTI, Ishurdi, 13-16. xi. 1993, Md. Z. Alam leg. 14. Trithemis pallidinervis (Kirby) [Ashi-naga-tonbo] Specimens examined. 1 male, 2 females, IPSA, 2. xi. 1993, S. Nomura leg. 15. Neurothemis fulvia (Drury) [Aka-bekkou-tonbo] Specimens examined. 2 males, 1 female, Jaintapur, Sylhet Dist., 9. xi. 1993, S. Nomura leg.; 1 female, Satchari forest, Hobiganj Dist., 8-10. xi. 1993, S. Nomura leg.; 1 male, Madhupur, Tangail Dist., 22. xi. 1993, S. Nomura leg.. 16. Neurothemis tullia tullia (Drury) [Neguro-tonbo] Specimens examined. 3 females, IPSA, 1. xi. 1993, S. Nomura leg.; 2 males, IPSA, 2. xi. 1993, S. Nomura leg.; 2 males, IPSA, 2. xii. 1993, S. Nomura leg.; 6 males, SRTI, Ishurdi, 1316. xi. 1993, S. Nomura leg.; 1 female, Balda Garden, Dhaka C., 29. x. 1993, S. Nomura leg.. 17. Neurothemis intermedia atalanta Ris Specimens examined. 1 male, IPSA, 1. xi. 1993, S. Nomura leg.; 4 males, 1 female, Madhupur, Tangail Dist., 22. xi. 1993, S. Nomura leg.; 1 female, Bhowal forest, Gazipur Dist., 28. xi. 1993, S. Nomura leg.; 1 male, Satchari forest, Hobiganj Dist., 8-10. xi. 1993, S. Nomura leg. Acknowledgement We wish to express our special thanks to Dr. Syojiro Asahina (Tokyo Pref.) for his kind identification of materials and invaluable advices. Our cordial thanks are due to Prof. Katsura Morimoto and Associate Prof. Osamu Tadauchi of the Entomological Laboratory, Kyushu University for their continuous guidance and kind offer of the materials. We are also indebted to Dr. Kazuo Ogata (Kyushu Univ.) and Mr. Fazlar Rahman (IPSA) for their kind assistance in various ways. , 4 1. Ceriagrion coromandelianum (Fabricius), male and female; 2. Ischnura aurora aurora (Brauer), male and female; 3. Agriocnemis pygmaea (Rambur), male and female; 4. Pseudagrion microcephalum (Rambur), male and female; 5. Pseudagrion laidlawi Fraser, male and female, ; 6. Diplacodes trivialis (Rambur), male; 7. Brachythemis contaminata (Fabricius), male; 8. ditto, female. DRAGONFLIES OF BANGLADESH

A List of Dragonflies Collected in Bangladesh

The abundance and diversity of insect fauna were studied from two deciduous sal forests of Bhawal and Madhupur located at central part of Bangladesh. A total of 544 individuals of insects of 61 species belonging to 54 genera, 33 families and 11 orders have been identified with Hymenoptera (31%) as the dominant order in species richness followed by Coleoptera (13%), Orthoptera (11%), Diptera (10%), Hemiptera (8%), Lepidoptera (8%), Odonata (8%), Homoptera (3%), Isoptera (3%), Neuroptera (3%) and Dictyoptera (2%). Bhawal scores higher Shannon-Weaver diversity index (Hʹ=3.725) compared to Madhupur (Hʹ=3.340). The Bhawal Sal Forest with the collected 341 (63%) insects and identified 53 (59%) species belonging to 10 orders was found more diverse in species richness than the Madhupur Sal Forest with 37(41%) species belonging to 11 orders identified from the collected 203 (37%) insect samples. Insects of the order Neuroptera were not recorded from Bhawal. Off the 61 species, 29(48%) species were common in both the forests, 24(39%) species were exclusive to Bhawal and eight (13%) species were exclusive to the Madhupur Sal Forest. Apis cerana of Hymenoptera was identified as the dominant species having 9% of the identified samples followed by dipteran species Musca domestica with 6% of the samples. Among the insect species 30 (49%) species were found playing beneficial role as biological control agents, predators, pollinators, honey producers and also organic debris recycler. On the other hand, 31(51%) species were found to be harmful causing damage to forest vegetation as well as human and wildlife at variable degrees.
J. Biodivers. Conserv. Bioresour. Manag. 2021, 7(1): 11-24

Diversity and abundance of some insect fauna in Bhawal and Madhupur Sal forests of Bangladesh

Dragonflies and damselflies of Bangladesh

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Odonate abundance and diversity in four selective spots of Chittagong University campus