This is a common bug in Northants. It is found in weedy ponds, gravel pits, dykes, river backwaters with a slow flow and neutral or alkaline waters and has been found in dewponds and temporary habitats. It is frequently taken in weedy deeper water.

Eggs are laid between late January and late March but embryonic development is slow until temperatures rise and when constant eggs require 19 to 20 days for development. Eggs are fixed, at night, to the leaves and stems of any aquatic plant: by oviposition time the males are almost all dead, females living at least a month longer and laying a number of batches of decreasing size as they age. The five larval instars take 3 to 4 months for development and the first adults are met with in mid-July. The adults overwinter and mate in January-February. C. punctata is one of the stronger corixid migrants, flying in the day if temperatures rise or water evaporates; surprisingly, it is almost never taken in light-traps.S&L, 1959).

Distribution:

This is widely found and distributed across Northants in 29 10km squares it's Northants status is very common.

Habitat:

It is found in weedy ponds, gravel pits, dykes, river backwaters with a slow flow and neutral or alkaline waters and has been found in dewponds and temporary habitats. It is frequently taken in weedy deeper water.

Identification:

Corixa punctata can be identified by i't's size as 3.5mm or more broad and 13mm long. It has more than 14 pale lines on it's pronotum. It is very similar to C. dentipes in Northants but can be separated by C.dentipes having a notch out of the base of the mid tibia.