Tirachoidea jianfenglingensis (PSG 208), also known as the Giant Jianfengling Stick Insect, is recognized as one of the world's longest stick insect species. 
 
Average Price (UK 2026)
Current market prices for this species in the UK vary based on the development stage: 
Eggs: Typically sold in small batches, such as 5 eggs for £3.00–£3.50 or 20 eggs for £10.00.
Nymphs: Small nymphs (L1–L4 stage) are generally priced between £2.00 and £3.49 each, with bulk discounts often available (e.g., 5 nymphs for £8.00).
Adults: Larger specimens or adults can retail for approximately £13.99. 
 
Physical Characteristics
Size: Adult females can reach body lengths of 240 mm, while males grow to approximately 190 mm. With their front legs fully extended, they can exceed 30 cm.
Appearance: Females are usually bright green, wingless, and have bulky bodies that may turn shades of brown. Males are significantly more slender and possess a full set of wings allowing for short glides.
Lifespan: They have a typical lifespan of around 18 months. 
 
Habitat and Care
Diet: They are generalist herbivores that feed on Bramble, Oak, Rose, Hazel, and Raspberry.
Enclosure: Due to their massive size, they require a very tall enclosure—at least 72 cm in height—to facilitate safe molting.
Humidity: Nymphs thrive in high humidity environments (70–90%), which can be slightly lowered for adults.