Australia

Greenhouse thrips

Heliothrips haemorrhoidalis

As it matures into an adult, head and thorax of the the greenhouse thrips darken to black and the abdomen changes from yellowto dark brown. Cool temperatures retard the color changes. The legs remain a light yellow and the antenna has eight segments. The greenhouse thrips is parthenogenic, in that it reproduces without mating, and males are seldom seen. It is a poor flier and tends to remain in the shaded areas on the plant.
The greenhouse thrips causes rind blemish problems on developing citrus fruit (i.e., ring spotting or irregular russeting), on immature and mature clustered fruit, or where a leaf or twig is in direct contact with fruit.