Two New Solitary Bee Species Found In Arunachal Pradesh 2026

By Vikas Sir, Founder & Senior Faculty – Cosmo Classes | 14 July 2026

Two new solitary bee species — Elaphropoda triangulata and Habropoda adi — were identified in Arunachal Pradesh on 11 July 2026. The discovery was made by researchers from the Ashoka Trust for Research in Ecology and the Environment (ATREE), Bengaluru, during the Siang Expedition, and published in the European Journal of Taxonomy.

Both species belong to the Anthophorinae subfamily of ground-nesting bees. Solitary bees do not form large colonies with a queen and workers, and many are ground-nesting pollinators that support the reproduction of flowering plants and crops. Each species is currently known from a single male specimen.

Elaphropoda triangulata was named for its triangular markings, while Habropoda adi honours the Adi community of Arunachal Pradesh. Arunachal Pradesh forms part of the Eastern Himalayas, a region of high species diversity and endemism facing pressures from infrastructure development and land-use change.

Exam Facts

• Species: Elaphropoda triangulata & Habropoda adi — solitary (not social) bees.
• Discovered by: ATREE, Bengaluru, during the Siang Expedition.
• Published in: European Journal of Taxonomy.
• Family/Subfamily: Apidae; subfamily Anthophorinae (ground-nesting).
• Region: Arunachal Pradesh — Eastern Himalayas & Indo-Burma biodiversity region.

New Species at a Glance

India & Biodiversity

Arunachal Pradesh lies within the Eastern Himalayas and the Indo-Burma biodiversity region, among the world's recognised biodiversity hotspots. Wild bees are key pollinators, and documenting them highlights the ecological richness of India's North-East and the need to conserve fragile montane habitats.

Practice Questions

Q1. The two new bee species Elaphropoda triangulata and Habropoda adi were discovered in which State?
A) Assam
B) Arunachal Pradesh
C) Sikkim
D) Nagaland

Q2. Which institution discovered the two new bee species during the Siang Expedition?
A) Zoological Survey of India
B) ATREE, Bengaluru
C) Wildlife Institute of India
D) Botanical Survey of India

Q3. The findings were published in which journal?
A) Nature
B) European Journal of Taxonomy
C) Science
D) Current Science

Q4. Solitary bees are best described as bees that:
A) Form large colonies with a queen
B) Do not form large colonies with a queen and workers
C) Only live in beehives
D) Produce commercial honey

Q5. Arunachal Pradesh is part of which biodiversity region?
A) Western Ghats
B) Indo-Burma / Eastern Himalayas
C) Sundaland
D) Himalaya-Karakoram only

Q6. Consider the following statements about the discovery:
1. Both species are ground-nesting solitary bees.
2. Each is currently known from a single male specimen.
3. Habropoda adi was named after the Adi community of Arunachal Pradesh.
Which of the statements are correct?
A) 1 and 2 only
B) 2 and 3 only
C) 1 and 3 only
D) 1, 2 and 3

UPSC / RPSC Relevance

UPSC Prelims: biodiversity hotspots, pollinators, species discovery, Eastern Himalayas.

UPSC Mains – GS Paper III: biodiversity conservation, ecology, pollinator importance.

RPSC / SSC: current affairs on new species, research institutions, and biodiversity regions.

Mains Descriptive Question

(GS Paper III · 250 words · 15 marks) Pollinators such as wild bees are vital to ecosystems and agriculture. Discuss the ecological significance of documenting new species in India's biodiversity hotspots.

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