L3/L4
Currently eating curly wings and green bottle flies.
Hymenopus coronatus are a small/medium mantis from South East Asia, they are a good mantis to keep after owning a few.
Keep them between 26-28c during the day, and allow a temperature drop to 20-22c at night.
Humidity, spray these mantis every other day, they like it to be between 60-80%, make sure the enclosure drys out in between spraying, as if its too humid for extended period of time this can kill the mantis.
Size
Females grow 6-7 cm, males grow 2.5cm
Photos show different sized nymphs.