DIPLOPODA (millipedes) > JULIDA (cylindrical or snake millipedes) > Julidae

This millipede is considerably larger and more robust (even when immature) than Cylindroiulus britannicus or indeed any of the species in the previously described 'luscus' group. Adults are typically more in the region of 25-30mm long with a diameter that's probably a little over 3mm. They are a distinctive species, typically blue-bronze in colour and completely lacking a projecting telson. Their eyes consist of a cluster of ocelli forming an oval to kidney shape.

Cylindroiulus caeruleocinctus is superficially similar to a couple of other large, darkly pigmented species, Julus scandinavius and Tachypodoiulus niger except that both of those have a projecting telson, as does Cylindroiulus londinensis, which is typically larger.

It is a relatively common and widespread species particularly across southern and eastern counties where records show that it most frequently occurs in synanthropic habitats and adjoining open spaces, such as parks and churchyards. Adults can be found throughout the year, although during the colder winter months may burrow quite deeply into the ground.