Sessile-female
Guides
Dactylopiidae
Cochineal Insects
Dactylopiidae is a family of scale insects (Hemiptera) comprising the single genus Dactylopius, commonly known as cochineal insects. These insects are economically and historically significant as the primary source of carmine, a vibrant red dye derived from carminic acid that the insects produce as a defensive compound. The family has been used for dye production since at least the 10th century in the Americas and became the second most valuable export from the New World during the Colonial Period. Some species serve as biological control agents for invasive cacti, while others are agricultural pests of cactus crops.
Echidnophaga gallinacea
hen flea, sticktight flea, stickfast flea
Echidnophaga gallinacea is a small, dark brown flea that parasitizes a broad range of bird and mammal hosts including poultry, dogs, cats, and occasionally humans. Adult females embed permanently into host skin—typically on bare areas of the head and face—using a serrated mouthpart to feed on blood, while males remain mobile. Heavy infestations cause ulceration, dermatitis, anemia, and can be fatal to young or small hosts. The species has spread globally through poultry farming and is now established across tropical, subtropical, and temperate regions.
fleaectoparasitepoultry-pestvectorinvasivecosmopolitanintegrated-pest-managementcage-free-poultrybackyard-chickenshematophagypermanent-attachmentsessile-femaleresilinjumpingctenidia-absentanaemiadermatitisulcerationRickettsiaBartonellaplaguediatomaceous-earthmaldisonpesticide-resistanceorganic-farminganimal-welfareeconomic-entomologyveterinary-entomologyhost-generalisturban-wildlife-interfacesynanthropicHectopsylla
A genus of stick-tight fleas in the family Tungidae, comprising thirteen species that parasitize non-volant mammals, birds, and bats. The genus was established by Von Frauenfeld in 1860, with H. psittaci as the type species. Several species were described by Karl Jordan between 1906 and 1942. The genus exhibits specialized host attachment behaviors, with females of some species becoming permanently embedded in host skin.