[8] Like other species in the family, Thripidae, they have the typical flattened bodies with wings that are narrow and pointed, and their ovipositors resembles a saw.

[9] The head of the greenhouse thrips is connected to the prothorax by an articular membrance and by cervical sclerites as well.

[9] Another unique thing to the H. haemorrhoidalis is that they have asymmetrical mouthcones that contain an anteclypeus, labrum, labium, paired maxillary stylets and an unpaired left mandible that is well developed.

[11] The midgut of the H. haemorrhoidalis lacks muscles and the thing that is unique to them is that they have relatively low concentration of ganglia.

[7] Female H. haemorrhoidalis have reproductive systems that consists of two ovaries, two lateral oviducts and an accessory gland.

[7] The female H. haemorrhoidalis lay eggs independently underneath the surface of leaves[12] or on fruits.

[10] Some of the larvae tend to carry fecal droplets on the tips of their abdomen to act as a repellant against predators.

[8] The pupa differs physically from the prepupal by the growth of the wings and the folding of the antennae over the insect's head.

[7] There is a table listing locations where H. haemorrhoidalis was found at CABI Invasive Species Compendium.

[6][7][10] Ornamental plants that they infest are the azaleas, calla lilies, chrysanthemums, fuchsia, roses[5] and orchids.

[7] Larvae and adult H. haemorrhoidalis feed by piercing the epidermal tissue of leaves and fruits and sucking out the cellular content.

[16][13] The nymphs are able to produce a reddish fluid that are deposited on the surface of plants which allows for fungal growth to develop.

[17] The leaves that have undergone attacks by the greenhouse thrips ended up with a lead-like to silvery colouring.

[6][10] In the United States, specifically in southern California, H. haemorrhoidalis are considered major pests to avocado farms.

[6][13][18] But since the usage of the parasitoid, Thripobius semiluteus Boucek,[18][17] as a form of biological control, the threat of H. haemorrhoidalis on avocados have reduced.

[13] Another way that avocado farms try to maintain the threat is to have modified fruit harvesting strategies to eliminate breeding and feeding sites of the thrips.

[8] These wasps attack adult and larval greenhouse thrips and paralyze them to feed to their own larvae.