Recognition data

Distinguishing features

Macropterous, strongly bicoloured; head brown with postoccipital region and anterior half of pronotum yellow; pronotal blotch and pteronota, also meso and metasternum, dark brown; abdominal segment I yellow with antecostal ridge interrupted medially, II–VI largely yellow with light brown shadings, II and III with antecostal ridge dark, VII–X dark brown; legs mainly brown, hind tibiae variably paler, all tarsi yellow; fore wing with pale sub-basal area then uniformly light brown but paler toward apex. Head with occipital carina close to eyes; ocellar triangle transversely striate with markings in between the striae; ocellar setae III on or within anterior margins of triangle; three pairs of postocular setae, median pair long; postoccipital region transversely striate/reticulate; mouth cone extending between fore coxae. Pronotum anterior third transversely reticulate without internal markings; blotch transversely striate with many markings between the major lines; blotch almost rectangular, anterior and posterior margins concave but posteromedian paired setae arising on dark area. Mesonotum and metanotum with many small linear markings between the major sculpture lines, metanotal reticulation irregular but mainly linear. Metasternal anterior margin with shallow emargination. Fore wing with or without one or two setae displaced distally onto second vein from first vein; wing apex with long sub-apical lobe. Tergites I–VI medially without marginal microtrichia, IV–VI with many discal microtrichia medially. Sternites II–VII medially without marginal microtrichia, but a few discal microtrichia sometimes extend mesad of setae S1 near posterior margin.

Male similar to female, sternites V–VII with broadly transverse pore plate.

Related and similar species

Among the nine Neohydatothrips known from Australia, this species appears to be one of a group that is associated with the leaves of native Fabaceae, and in which the fore wing bears a sub-apical lobe.

Distribution data

Eastern Australia, between Brisbane and Canberra

Biological data

Host plants

Swainsonia galegifolia, Jacksonia scoparia, Indigofera australis (Fabaceae)

Life history

Collected mainly from Fabaceae shrubs in flower

Taxonomic data

Current valid name

Neohydatothrips haydni (Girault)

Original name and synonyms

• Sericicothrips haydni Girault, 1932