Question

Edible insects and wild sericigenous insects in north east india

Answer 1

This paper deals with the diversity of wild sericigenous insects i.e., silk producing moths in Nagaland, a small mountainous state of north eastern India. A periodic survey conducted during 2004-2006 revealed the presence of 14 species belonging to 8 genera i.e. Antheraea , Actias , Attacus , Archaeoattacus , Cricula , Loepa , Samia , Sonthonnaxia and a large number of host plants. However, only four species are commercially exploited in Nagaland at present and there remains a great scope for producing novel silk from Actias selene , Antheraea roylei , Samia canningi and Cricula trifenestrata . The egg, worm, cocoon and adult stages of certain species have been studied for character evaluation and categorization. The paper emphasizes the importance of these lesser known silk producing insects, causal factors for depletion of population density and advocates for great need for conservation of wild silk moths and their ecological environment in Nagaland. Further, the paper highlights the socioeconomic perspective of rearing and utilizing wild silk moths by the forest dwelling tribal people who could play a major role in conserving these insects and their habitats.
(PDF) Diversity and ecology of wild sericigenous insects in Nagaland, India. Available from: https://www.researchgate.net/publication/242157205_Diversity_and_ecology_of_wild_sericigenous_insects_in_Nagaland_India [accessed Sep 30 2018].

Answer 2

Explanation:

A- Head B- Thorax C- Abdomen

1. antenna

2. ocelli (lower)

3. ocelli (upper)

4. compound eye

5. brain (cerebral ganglia)

6. prothorax

7. dorsal blood vessel

8. tracheal tubes (trunk with spiracle)

9. mesothorax

10. metathorax

11. forewing

12. hindwing

13. mid-gut (stomach)

14. dorsal tube (Heart)

15. ovary

16. hind-gut (intestine, rectum & anus)

17. anus

18. oviduct

19. nerve chord (abdominal ganglia)

20. Malpighian tubes

21. tarsal pads

22. claws

23. tarsus

24. tibia

25. femur

26. trochanter

27. fore-gut (crop, gizzard)

28. thoracic ganglion

29. coxa

30. salivary gland

31. subesophageal ganglion

32. mouthparts