Arachnocampa
Taxonomy
This page represents the following TreeOfLife-200M taxonomic path.[1]
- Kingdom: Animalia
- Phylum: Arthropoda
- Class: Insecta
- Order: Diptera
- Family: Keroplatidae
- Genus: Arachnocampa
Visual Description
The genus Arachnocampa includes species known for their bioluminescent larval stages. Observations from the TreeOfLife-200M dataset show larvae that are typically elongated and worm-like in form.[1] They often exhibit a translucent or pale body texture, which is characteristic of their development in sheltered, humid environments such as caves or damp forests.[1]
Bioluminescence
The New Zealand glowworm, Arachnocampa luminosa, is well-studied for its blue-green bioluminescence, which has a peak emission of 487 nm.[2] This light is produced by a luciferin-luciferase reaction that requires ATP-Mg²⁺ and oxygen. The light organ is situated at the posterior end of the larva and is derived from modified Malpighian tubules.
Although the luciferase enzyme in A. luminosa shares approximately 30% sequence identity with firefly luciferase, the bioluminescent system is evolutionarily distinct, and there is no cross-reactivity between their respective luciferins and luciferases. The luciferin itself is chemically unique, requiring tyrosine and xanthurenic acid as precursors for its production.
Gallery
References
- 1 2 3 Dataset view for Animalia / Arthropoda / Insecta / Diptera / Keroplatidae / Arachnocampa constructed from imageomics/TreeOfLife-200M records under this taxonomic path. Hugging Face Datasets. https://huggingface.co/datasets/imageomics/TreeOfLife-200M.
- ↑ Oliver C. Watkins; Miriam L. Sharpe; Nigel B. Perry; Kurt L. Krause. New Zealand glowworm (Arachnocampa luminosa) bioluminescence is produced by a firefly-like luciferase but an entirely new luciferin. Scientific Reports. 2018. https://doi.org/10.1038/s41598-018-21298-w.