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Species Page - Haplothrips subtilissimus
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scientific name    Haplothrips subtilissimus    

habitat
Dahlia flowers, Rosa sp., Anaphalis margaritacea and dead branches.

seasonality
Undocumented

identification
Body varies around 2mm in length and is generally dark brown. The fore tibiae are light brown to yellowish brown (Stannard 1968), and the apical fifth of the mid and hind tibiae are yellowish brown. The mid and hind tarsi are yellow or yellowish brown (Nakahara 1985). Antennal segments 1 and 2 are dark brown, segments 3 to 6 are yellow and segments 7 and 8 are light brown. The forewings each have a light brown spot at the base, and are otherwise colourless. The head is longer than wide and transversely striated. The eyes are somewhat large, and ocelli are present. The postocular setae are mid-sized and somewhat dilated. Antennal segment 3 has 1 outer sense cone, segment 4 has 2 outer and 2 inner sense cones, and segment 8 is broadly joined to segment 7 and is not pedicellate (Stannard 1968). The major setae on the prothorax are dilated, and the anteromarginal setae are well developed (Nakahara 1985). The metanotum is so weakly sculptured that it is almost smooth, (Stannard 1968) and the foretarsi lack a subapical tooth (Nakahara 1985). The pelta is triangular and has longitudinal reticulations. Two pairs of wing-holding setae are present on each of abdominal segments 2 to 7. The fustis is mid-sized, and the tube is short (Stannard 1968).

life history
Undocumented

conservation
Undocumented

diet info
This species is predaceous on mites on dead branches (Mound et al 1976).

range
Alberta, Nova Scotia, Quebec, Ontario, Manitoba, Saskatchewan (Chiasson 1986). Holarctic, but mainly confined to Canada in North America (Stannard 1968).

quick link
http://entomology.museums.ualberta.ca/searching_species_details.php?s=2956



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Authorship
References (4)

 

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