| # IndoLepAtlas — Data Card |
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| ## Dataset Summary |
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| IndoLepAtlas is a computer vision dataset of Indian butterflies, moths, and their larval host plants. It captures the diversity of Indian Lepidoptera across ~1,094 species with images sourced from ifoundbutterflies.org. |
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| **Inspired by:** iNaturalist |
| **Domain:** Indian Wildlife & Biodiversity (CSE3292 §3.6) |
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| ## Source |
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| - **Website:** [ifoundbutterflies.org](https://www.ifoundbutterflies.org/) |
| - **License:** Images are publicly available; photographer credits preserved |
| - **Collection method:** Automated scraping with respectful rate limiting |
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| ## Dataset Composition |
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| ### Butterflies (~967 species) |
| - Adult/Unknown life stage photographs |
| - Early stage (caterpillar, pupa) photographs |
| - Per-image metadata: species, common name, sex, location, date, credit |
| - Taxonomic hierarchy: Order → Superfamily → Family → Subfamily → Tribe → Genus → Species |
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| ### Host Plants (~127 species) |
| - Hero images and gallery photographs |
| - Per-image metadata: species, family, location, date, credit |
| - Cross-referenced with butterfly species they host |
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| ## Geographic Coverage |
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| Images span all major Indian states with concentration in: |
| - Kerala, Karnataka, Maharashtra (Western Ghats biodiversity hotspot) |
| - Northeast India (Assam, Arunachal Pradesh, Meghalaya) |
| - Andaman & Nicobar Islands |
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| ## Annotation Process |
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| 1. **Auto-trimming:** Image overlays (text labels) removed via fixed-percentage cropping |
| 2. **Auto-detection:** Bounding boxes generated using Grounding DINO (zero-shot object detection) |
| 3. **Classification:** Species labels from source website taxonomy |
| 4. **Metadata enrichment:** OCR extraction of overlay text (location, date, credit, media code) |
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| ## Known Limitations |
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| - Some species have very few images (long-tailed distribution) |
| - OCR may fail on low-quality or unusually formatted overlays → null fields |
| - Bounding boxes are auto-generated, not manually verified |
| - Geographic bias toward well-surveyed regions (Western Ghats, Northeast) |
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| ## Ethical Considerations |
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| - No human subjects or personal information |
| - Source is a public biodiversity documentation platform |
| - Photographer attribution maintained via OCR extraction |
| - Dataset does not include sensitive or endangered species location details |
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