New Host Records for Caliothrips striatus (Thysanoptera: Thripidae) on Magnolia spp. with the Description of the Second Instar

2012 
In the current literature, apart from brief descriptions of feeding hosts, little is known regarding the habits of Caliothrips striatus Hood. This species is native to North America with a range of the eastern United States; and Wilson (1975) described it as mainly using tulip trees, Liriodendron tulipifera L., as a host plant and only occasionally being found on magnolias. The host association information for C. striatus is limited. The feeding behavior is known only on L. tulipifera, and the plant hosts utilized for reproduction have not been documented. The current study addresses this issue. In the present study observations were conducted at arboretums in South Carolina (N 34° 53’ 52.22’’, W 82° 49’ 43.90’’, 315 m asl), Georgia (N. 34° 16’ 08.61’’, 83° 26’ 58.82’’, 222 m asl) and Tennessee (N 35° 52’ 21.85’’, W 88° 50’ 40.08’’, 125 m asl) from Sep to Nov in 2010 and 2011. In the arboretums the thrips were found in large numbers causing severe feeding damage to the leaves (Fig. 1). Damage caused by C. striatus on species
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