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Thrips of California 2012

Asprothrips seminigricornis

Recognition data

Distinguishing features

Female fully winged. Body, legs and wings almost white, antennal segments V–VIII dark brown. Antennae 8-segmented, III–IV each with forked sensorium, VI with long simple sensorium. Head with minute pair of setae between hind ocelli. Pronotum without long setae. Metanotum reticulate, median setae far behind anterior margin. Metathoracic endofurca elongate and lyre-shaped. Tarsi all 2-segmented. Fore wing slender, veinal setae minute, about 4 on both veins; posteromarginal cilia wavy. Abdominal tergites with median pair of setae small; tergite VIII with posteromarginal comb of short microtrichia medially.

Related and similar species

Only two other species are known in the genus Asprothrips, one from India and one from Japan, and in both of these the body is brown. The genus is considered to be a member of the Dendrothripinae, because of the elongate "lyre-shaped" metathoracic furca, but differs from species of Dendrothrips in having very short setae medially on the tergites (Mound, 1999).

Taxonomic data

Current valid name

Asprothrips seminigricornis (Girault)

Original name and synonyms

  • Euthrips seminigricornis Girault, 1926: 2
  • Scirtothrips antennatus Moulton, 1937: 409
  • Asprothrips raui Crawford JC, 1938: 110

Family placement

Thripidae, Dendrothripinae

Biological data

Life history

Larvae and adults feed on leaves.

Host plants

Collected from a range of different plant species, with no evidence of any particular relationship.

Tospoviruses vectored


Crop damage

This species was noted to be damaging the leaves of Gardenia augusta in a greenhouse at Brisbane, in Queensland, Australia, and considerable numbers were collected from the leaves of Ricinus in northern New South Wales.

Distribution data

Area of origin

Possibly Australia


USA (California; New York), Bermuda, Hawaii, Australia.