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Thrips of California 2012

Thrips helvolus

Recognition data

Distinguishing features

Described from four females, this species has not been studied by the present authors. A yellow species, with no sternal discal setae, it differs from T. palmi in having only three setae on the lateral margins of the second abdominal tergite.

Related and similar species

The genus Thrips is the second largest genus in the Thysanoptera, and currently includes, worldwide, about 285 species. All members of the genus lack ocellar setae I on the head, and they all have ctenidia on tergite VIII posteromesad to the spiracles. Other characters, such as number of antennal segments, number of setae on the fore wing veins, and number of discal setae on the sternites are variable between species (Palmer, 1992; Mound & Masumoto, 2005). T. helvolus has been compared to two other North American members of the genus (Nakahara, 1994: 67), including T. heraclei.

Taxonomic data

Current valid name

Thrips helvolus Nakahara

Original name and synonyms

  • Thrips helvolus Nakahara, 1994: 67

Family placement

Thripidae, Thripinae

Biological data

Life history

Not known

Host plants

Not known

Tospoviruses vectored


Crop damage


Distribution data

Area of origin

Presumably Western USA