Large mantis species?

[Monza geckos]

Hey guys I have recently got an l3 heterochaeta orientalis mantis which gets around 14 cm and looks like a stick insect with cat eyes, and I realised how cool mantids were but the ones I've had in the past have been pretty and interesting but too small. I was looking for mantids around 8cm plus could you give me some links to bigger species. the only ones I've found are chinese mantids idolo diabolica and sphrodomantis virdis to get big enough. my budget is £18 (it would be nice if I could get 2 nymphs for that price).

[iloveRanitomeya]

Hierodula spp., Pnigomantis medioconstricta, Sphodromantis aurea, Polyspilota etc. Ischnomantis and Plistospilota are large mantids but might be hard to get and expensive.