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1 June 2011 Biology and Host Range of Tecmessa elegans (Lepidoptera: Notodontidae), a Leaf-Feeding Moth Evaluated as a Potential Biological Control Agent for Schinus terebinthifolius (Sapindales: Anacardiaceae) in the United States
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Abstract

During surveys for natural enemies that could be used as classical biological control agents of Schinus terebinthifolius Raddi (Brazilian pepper), the caterpillar, Tecmessa elegans Schaus (Lepidoptera: Notodontidae), was recorded feeding on the leaves of the shrub in South America. The biology and larval and adult host range of this species were examined to determine the insect's suitability for biological control of this invasive weed in North America and Hawaii. Biological observations indicate that the larvae have five instars. When disturbed, the late instar larvae emit formic acid from a prothoracic gland that may protect larvae from generalist predators. Larval host range tests conducted both in South and North America indicated that this species feeds and completes development primarily on members of the Anacardiaceae within the tribe Rhoeae. Oviposition tests indicated that when given a choice in large cages the adults will select the target weed over Pistacia spp. However, considering the many valued plant species in its host range, especially several North American natives, this species will not be considered further for biological control of S. terebinthifolius in North America.

© 2011 Entomological Society of America
Marina Oleiro, Fernando Mc Kay, and Gregory S. Wheeler "Biology and Host Range of Tecmessa elegans (Lepidoptera: Notodontidae), a Leaf-Feeding Moth Evaluated as a Potential Biological Control Agent for Schinus terebinthifolius (Sapindales: Anacardiaceae) in the United States," Environmental Entomology 40(3), 605-613, (1 June 2011). https://doi.org/10.1603/EN10254
Received: 5 October 2010; Accepted: 1 February 2011; Published: 1 June 2011
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