Changes

''S. calcitrans'' is 5-7mm long, and both the males and females suck blood.  They are grey with four long longitudinal stripes on the thorax, and with large black spots on the abdomen.   

''S. calcitrans'' is 5-7mm long, and both the males and females suck blood.  They are grey with four long longitudinal stripes on the thorax, and with large black spots on the abdomen.   

The larvae are identified bu examination of the posterior spiracles.

The larvae are identified by examination of the posterior spiracles.

Eggs are yellow, and approximately 1mm in length

Eggs are yellow, and approximately 1mm in length