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Thrips of California 2012

Prosopoanaphothrips reticulatus

Recognition data

Distinguishing features

Females without wings or ocelli. Body brown to dark brown, legs and antennal segments III–IV paler. Head, thorax, and at least anterior abdominal tergites strongly reticulate; with no long setae except on tergite IX. Antennae 8-segmented; segments III–IV with sensoria simple. Mesonotum, metanotum and abdominal segment I all strongly transverse. Abdominal tergites V–VII with median transverse row of about 10 setae; tergite VIII with no posteromarginal comb; tergite X with complete longitudinal division. Sternites with median transverse row of about 8 small discal setae.

Related and similar species

The genus Prosopoanaphothrips includes only a single species. In general appearance, this wingless thrips resembles some species in Anaphothrips, but in that genus no species have discal setae on the sternites.

Taxonomic data

Current valid name

Prosopoanaphothrips reticulatus (Moulton)

Original name and synonyms

  • Sericothrips reticulatus Moulton, 1907: 50

Family placement

Thripidae, Thripinae

Biological data

Life history

Breeding on leaves and in leaf axils (Bailey, 1948).

Host plants

Various Poaceae, particularly Bromus rigidus.

Tospoviruses vectored


Crop damage

Large populations can result in severe stunting damage to the leaves of its grass host plants (Bailey, 1948).

Distribution data

Area of origin

Western USA