Scirtothrips

Citrus thrips Scirtothrips citri, photographed by Joseph Morse.

Belongs within: Thripidae.

Scirtothrips is a genus of leaf-feeding thrips, several of which are important economic pests causing scarring on fruit. These include the citrus thrips S. citri and S. aurantii, the latter of which is also a pest on crops such as bananas and mangoes. Some species occupy cryptic habitats on the leaves; the oak-dwelling S. abditus lives beneath marginal hairs on the leaf veins and within domatia formed by these hairs (Mound & Marullo 1996).

Characters (from Mound & Marullo 1996): Antennae 8-segmented, sense cones forked; head transversely striate; ocellar setae I present, III varying in position between species; usually two pairs of postocular setae behind ocellae; pronotum transversely striate, with four pairs of posteromarginal setae which vary in spize (pm I is median pair, pm II frequently elongate); median pair of mesonotal setae arising well in front of posterior margin; forewing first vein usually with irregular series of setae, two to four (rarely up to ten) setae on second vein; fringe cilia wavy or straight, particularly distally; abdominal tergites with regular microtrichial field on lateral thirds, median pair of setae varying in size and position; VIII with well-developed posteromarginal comb; male sometimes with paired long processes (drepanae) laterally on tergite IX, sternal glandular areas not developed.

<==Scirtothrips Shull 1909 R-SN07
    |--*S. ruthveni Shull 1909 MM96
    |--S. abditus Mound & Marullo 1996 MM96
    |--S. albomaculatus MM09
    |--S. astrictus Mound & Marullo 1996 MM96
    |--S. aurantii M04
    |--S. bisbravoae Johansen 1983 MM96
    |--S. bondari Moulton 1933 MM96
    |--S. bounites Mound & Marullo 1996 MM96
    |--S. citri MM96
    |--S. dobroskyi M04
    |--S. euthyntus Mound & Marullo 1996 MM96
    |--S. gladiiseta Girault 1933 G33
    |--S. ikelus Mound & Marullo 1996 MM96
    |--S. longipennis (Bagnall 1909) [=Euthrips longipennis] MM96
    |--S. lumarius Mound & Marullo 1996 MM96
    |--S. manihoti (Bondar 1924) [=Euthrips manihoti] MM96
    |--S. multistriatus Hood 1954 MM96
    |--S. oligochaetus (Karny 1927) [=Anaphothrips oligochaetus] MM96
    |--S. panamensis Hood 1935 MM96
    |--S. perseae FYP07
    `--S. pteridis Mound & Marullo 1996 MM96

*Type species of generic name indicated

REFERENCES

[FYP07] Faber, B. A., W. L. Yee & P. A. Phillips. 2007. Effect of abamectin treatments for avocado thrips (Scirtothrips perseae Nakahara [Thysanoptera: Thripidae]) on persea mite (Oligonychus perseae Tuttle, Baker and Abbatiello [Acari: Tetranychidae]) and avocado bud mite (Tegolophus myresi Keifer [Acari: Eriophyidae]) populations and on their associated damage to leaves and fruit of avocado (Persea americana). In: Morales-Malacara, J. B., V. M. Behan-Pelletier, E. Ueckermann, T. M. Pérez, E. G. Estrada-Venegas & M. Badii (eds) Acarology XI: Proceedings of the International Congress pp. 521–527. Instituto de Biología and Faculdad de Ciencias, Universidad Nacional Autónoma de México, Sociedad Latinoamericana de Acarología: México.

[G33] Girault, A. A. 1933. Some beauties inhabitant not of commercial boudoirs but of Nature’s bosom, notably new insects. Privately published (reprinted Gordh, G., A. S. Menke, E. C. Dahms & J. C. Hall. 1979. The privately printed papers of A. A. Girault. Memoirs of the American Entomological Institute 28: 299–303).

[M04] Mound, L. A. 2004. Australian Thysanoptera—biological diversity and a diversity of studies. Australian Journal of Entomology 43 (3): 248–257.

[MM96] Mound, L. A., & R. Marullo. 1996. The thrips of Central and South America: an introduction (Insecta: Thysanoptera). Memoirs on Entomology, International 6: 1–487.

[MM09] Mound, L. A., & M. Masumoto. 2009. Australian Thripinae of the Anaphothrips genus-group (Thysanoptera), with three new genera and thirty-three new species. Zootaxa 2042: 1–76.

[R-SN07] Retana-Salazar, A. P., & K. Nishida. 2007. First gall-inducing thrips on Elaphoglossum ferns: a new genus and species of thrips, Jersonithrips galligenus from Costa Rica (Insecta, Thysanoptera, Phlaeothripidae). Senckenbergiana Biologica 87 (2): 143–148.

Last updated: 30 January 2019.