The population rate is declining, the biggest threat to this species being droughts which are a result of global warming.

[2] C. bidentata breeds in mountain springs, and the larvae are benthic, living in the lowest reaches of the water.

Breeding takes place in May–June, with eggs being laid in the upper reaches of the streams.

Larval development takes between three and five years, and can be slowed if cold weather causes the water to freeze.

[4] The larvae may sometimes leave the water, hunting for small arthropods on the ground at night.