Print Fact SheetOdontanaphothrips tricolor

Distinguishing features

Both sexes fully winged. Female with head, thorax and legs yellow, abdomen brown, fore wing pale.  Antennae 9-segmented; sense cone simple on III, forked on IV. Head with three pairs of ocellar setae, pair III on anterior margins of triangle; compound eyes with six pigmented ommatidia; five pairs of prominent postocular setae in two rows. Pronotum with numerous discal setae, one pair of long posteroangular setae. Metanotum reticulate, median setae close to anterior margin; campaniform sensilla absent. Fore wing relatively broad, first vein setal row incomplete distally, second vein with complete row of setae, posteromarginal cilia straight. Abdominal tergites with transverse reticulation; tergites II–VII with prominent lobed craspedum, toothed laterally, also medially on posterior tergites; VIII with comb of long microtrichia; median setae on II–VIII longer than distance between their bases. Sternites with no discal setae.
Male smaller than female, yellow with terminal abdominal segments brown.

Related species

The genus Odontanaphothrips includes only one species. This is a particularly unusual member of the Thripinae, with a pair of long median setae on the tergites, and a distinctively toothed craspedum on each tergite.

Biological data

Bailey (1957) states that this species is found in large numbers in Californian desert areas in late summer and fall. It has been collected from Atriplex sp. and Allenrolfia sp. [Chenopodiaceae].

Distribution data

Known only from California.

Family name


Species name

Odontanaphothrips tricolor (Moulton)

Original name and synonyms

Anaphothrips (Odontanaphothrips) tricolor Moulton, 1911: 17
Anaphothrips (Odontanaphothrips) enceliae Moulton, 1926: 24.


Bailey SF (1957) The thrips of California Part I: Suborder Terebrantia. Bulletin of California Insect Survey 4: 143–220.

Masumoto M & Okajima S (2017) Anaphothrips genus-group: key to world genera, with two new species and three new records from Japan (Thysanoptera, Thripidae). Zootaxa 4272(2): 201–220.