Thysanoptera in Australia

Recognition data

Distinguishing features

Female macroptera. Body and femora brown to dark brown, tibiae yellow at base and apex, tarsi yellow; antennae brown with segment III yellow in basal fifth and segments VIII–IX almost yellow; fore wing pale sub-basally including distal half of clavus, then with dark brown transverse band, distal two-thirds lighter brown. Antennae 9-segmented; segment I with process slightly toothed distally,  III long with external margin slightly concave; sensoria on III–IV incomplete dorsally, with weak internal markings; IX slightly shorter than VIII. Head produced in front of eyes bearing ocellar setae pair I; pair II arising on anterior margins of ocellar triangle, pair III small and arising between posterior ocelli; 3 to 5 pairs of postocular setae in widely spaced row; cheeks strongly convex. Pronotum with transverse reticulation, posterior margin with 5 pairs of small setae. Mesonotum with no microtrichia; metanotum with reticulation forming concentric circles on anterior half; sculpture lines on posterior half with stout microtrichia. Fore wing veinal setae short, scarcely longer than width of a vein. Fore tibial apex with two stout ventro-lateral setae. Abdominal tergite I with transverse lines of sculpture medially bearing small microtrichia; II–VIII with narrow transverse reticulation medially, bearing small microtrichia on anterior lines of each segment; tergite VIII median setae more than 0.5 as long as tergite; dorsal setae on IX–X relatively short. Sternite II with 2 pairs of posteromarginal setae, III–VI with 3 pairs also a transverse row of about 13–16 discal setae.

Male not known

Related and similar species

Twelve species are currently described in the genus Cranothrips, 11 from Australia and one from South Africa (Pereyra & Mound, 2009). C. ibisca is remarkable for its relatively large size and dark body, together with the absence of long setae.

Distribution data

Australia, Southeast Queensland, Lamington National Park

Biological data

Host plants

Known only from a few specimens taken in flowers of the tree Pentaceras australis (Rutaceae), but this is probably not the host plant.

Life history

Presumably breeding in flowers of its host.

Taxonomic data

Current valid name

Cranothrips ibisca Pereyra & Mound

Original name and synonyms

  • Cranothrips ibisca Pereyra & Mound, 2009

Oz thrips taxa