Thrips species (Insecta: Thysanoptera) associated to Fabaceae of agricultural importance in Cerrado and Amazon-Caatinga ecotone from Brazilian Mid-North

Abstract

species (Insecta: Thysanoptera) associated to Fabaceae of agricultural importance in Cerrado and Amazon-Caatinga ecotone from Brazilian Mid-North. Biota Neotrop. 13(2): http://www.biotaneotropica.org.br/v13n2/en/abstract?identification-key+bn03713022013 Abstract: Little is known about the Thysanoptera fauna from Brazilian Mid-North. In spite of being a region with at least three biomes and some ecotones, the studies on this insect order in the region are related to associations to a few cultivated plant species. On Fabaceae, plant family with the second largest number of records of thrips species associated in Brazil and huge economic importance for Mid-North, there are thrips records only on cowpea (Vigna unguiculata (L.) Walp.). Due to the lack of knowledge on the Thysanoptera fauna in such a diverse area and the importance of crops of this family in the region, this research aimed to survey the thrips species associated to Fabaceae of agricultural importance in areas of Cerrado and Amazon-Caatinga ecotone in Brazilian Mid-North, as well as provide basic biological information about damage and hosts. Also, comparison between the Thysanoptera fauna of fabaceous crops in the region and the rest of the Country and a key to species are presented. Thrips were collected on six fabaceous crops in four municipalities in the state of Maranhão and in one municipality in the state of Piauí. Eight thrips species were identified: Caliothrips phaseoli (Pergande, 1895), Frankliniella brevicaulis Hood, 1937, F. gardeniae Moulton, 1948, F. insularis (Franklin, 1908, F. schultzei (Trybom, 1910), F. tritici (Fitch, 1855), Haplothrips gowdeyi (Franklin, 1908) and Salpingothrips minimus Hood, 1935. Two other unidentified species were collected: Plesiothrips sp. and Scolothrips sp. Except for F. schultzei, the thrips species surveyed in Maranhão are first records in the state, and F. gardeniae is first record in the state of Piauí. The first records of thrips on Phaseolus lunatus L. in Brazil were established. Some species known as pests of Fabaceae mostly in southern and southeastern Brazil were not found in Mid-North. Voucher-specimens are deposited at the Entomological Collection

The role of floral structure and biotic factors in determining the occurrence of florivorous thrips in a dystilous shrub

“…However, the high frequency of F. musaeperda adults suggests that P. rigida flowers are an important resource for these insects. Despite thrips feeding on all floral parts, we did not find any characteristic damage marks, such as small brown to black necrosis spots (Kindt et al 2003;Chen and Williams 2006;Lima et al 2013). This may be related to the short lifespan of flowers (1 day), which may not be enough time for appearance of injuries.…”

Una población de Frankliniella insularis (Franklin) (Thysanoptera: Thripidae) asociada con flores de Gliricidia sepium (Jacq.) (Fabaceae) en Panamá

“…Dentro de la familia Fabaceae, la especie F. insularis ha sido reportada en Centroamérica como plaga menor en los géneros Cajanus y Pachyrhizus (Fabaceae) Hoddle et al, 2012;Mound & Marullo, 1996); en Brasil ha sido reportada sobre las especies Cajanus cajan (L.), Phaseolus lunatus L. y Vigna unguiculata (Lima et al, 2013).…”

First record of Caliothrips phaseoli (Hood, 1912) (Thysanoptera: Thripidae) in Apuleia leiocarpa (Fabaceae) seedlings in Rio Grande do Sul, Brazil

“…There are also records of them feeding on Apocynaceae and Convolvulaceae leaves (Silva et al, 1968). Studies on Brazilian species have mainly focused on P. vulgaris (Jesus et al, 2010;Souza et al, 2012;Boiça Júnior et al, 2015) and G. max (Lima et al, 2013;Toldi et al, 2016). The species has also been reported on Mentha sp.…”