Research conducted in the Garahan Forest Resort area (RPH Garahan), BKPH Sempolan, KPH Jember, successfully revealed a relatively high diversity of insects from the order Diptera. Using exploratory methods with insect nets and aspirators, the study recorded a total of 1,268 individuals consisting of 2 suborders, 9 families, and 14 species.
These findings indicate that the Garahan forest ecosystem still possesses environmental conditions capable of supporting various Diptera species, including those functioning as decomposers, pollinators, and natural predators.
Recorded Diptera Species
- Promachus yesonicus
- Musca domestica
- Sarcophaga sp.
- Chrysomya megacephala
- Lucilia sp.
- Drosophila immigrans
- Aedes aegypti
- Condylostylus longicornis
- Tipula lunata
- Aedes albotaeniatus
- Chrysomya chani
- Musca autumnalis
- Neotephritis finalis
- Acanthonevroides jarvisi
Featured Species: Chrysomya megacephala
One of the most interesting species documented in this research was Chrysomya megacephala, commonly known as the Oriental Latrine Fly or Green Bottle Fly.
This species is characterized by:
- A striking metallic-colored body
- The ability to rapidly locate organic materials such as carcasses
- Its frequent use in forensic science to estimate the post-mortem interval (time since death)
Its presence within a habitat indicates that natural decomposition processes are functioning properly.
Chrysomya megacephala
The diversity of Diptera in Garahan Forest demonstrates that even small insects often considered insignificant actually play major roles in maintaining ecosystem balance. From decomposers to environmental indicators, these insects form an essential part of the “natural machinery” that keeps ecosystems functioning.

