Diapherodes gigantea, commonly known as the Green Bean Stick Insect or Giant Lime Green Stick Insect, is a large species of phasmid native to the Caribbean islands of Grenada and Saint Vincent. It is highly popular among insect enthusiasts due to its striking appearance and ease of care (PSG No. 260). 
 
Physical Characteristics
This species displays significant sexual dimorphism, meaning males and females look very different: 
Females: Large, heavy-bodied, and a vibrant lime-green color. They can reach lengths of 13–20 cm. They are wingless (brachypterous) and cannot fly. They possess small pinkish spines along their thorax.
Males: Much smaller (approx. 11 cm) and slender, with a brownish body and long, functional wings that allow for short, gliding flights.
Nymphs: Newly hatched nymphs are about 20 mm long and typically bright green, though they may show color polymorphism with brown or straw-colored variations as they grow. 
 
Diet and Habitat
In the wild, they are often found on high trees like guava and cashew. In captivity, they are easily fed with: 
Primary Food: Bramble (blackberry), Eucalyptus, and Oak.
Secondary Options: Rose, Ivy, and Privet. 
 
Care and Rearing
They are considered a beginner-friendly species. 
Enclosure: Requires a tall, well-ventilated enclosure at least three times the length of the insect (minimum 45–60 cm tall for adults) to ensure successful molting.
Environment: Temperature should be kept between 20°C and 27°C with humidity around 60%. Light misting with water 1–3 times a week is recommended.
Lifespan: Females can live up to 18 months, while males typically live about 12 months. 
 
Reproduction
Methods: They reproduce both sexually and through parthenogenesis (females laying unfertilized eggs that hatch into more females).
Eggs: Females flick their eggs away with their abdomen. Eggs take 4 to 8 months to hatch depending on temperature and conditions.