Dept of Entomology and Acarology, Luiz de Queiroz College of Agriculture, (USP/ESALQ), Univ of São Paulo, Piracicaba, SP, Brazil.
Dept of Ecology and Evolutionary Biology, Graduate Program in Ecology and Evolution, Federal Univ of São Paulo, Diadema, SP, Brazil.
Neotrop Entomol. 2021 Jun;50(3):497-503. doi: 10.1007/s13744-020-00835-1. Epub 2021 Jan 26.
The expansion of soybean Glycine max (L.) Merrill in South America has provided an abundant host to the native arthropod fauna. Stink bugs (Heteroptera: Pentatomidae) are severe pests on soybean crops due to their feeding activities. Several native species have been recorded on this crop, with the widespread Neotropical brow stink bug Euschistus heros (Fabricius) recognized as the key pest in most of its distribution. Here, we report for the first time Euschistus crenator (Fabricius) as a new invasive species on soybean fields in Northern Brazil. We collected the species at Pará state (2°38'32.2″S 54°55'56.1″W and 4°06'31.2″S 54°55'01.9″W) and Roraima state (2°39'41.3″N 60°46'58.9″W and 3°00'44.6″N 60°22'32.9″W). The latter represents a new state record, and the first represents new locality records, however, both representing the first soybean host record for the species. The distribution of E. crenator ranges from southern US (AZ, CA, FL, and TX) to north South America, mostly between the Tropics of Cancer and Capricorn. Despite overlap in distribution, we did not find E. crenator and E. heros simultaneously on soybean crops in the North region (Amazon Forest) of Brazil. Euschistus crenator was able to complete its life cycle and had viable offspring on soybean plants, with development parameters similar to E. heros.
大豆 Glycine max（L.）Merrill 在南美洲的扩张为当地节肢动物区系提供了丰富的宿主。臭虫（半翅目：Pentatomidae）因其取食活动而成为大豆作物的严重害虫。已经在这种作物上记录了几种本地物种，广泛分布的新热带棕臭虫 Euschistus heros（Fabricius）被认为是其大部分分布地区的关键害虫。在这里，我们首次报道 Euschistus crenator（Fabricius）作为一种新的入侵物种出现在巴西北部的大豆田。我们在帕拉州（2°38'32.2″S 54°55'56.1″W 和 4°06'31.2″S 54°55'01.9″W）和罗赖马州（2°39'41.3″N 60°46'58.9″W 和 3°00'44.6″N 60°22'32.9″W）采集到该物种。后一个代表新的州记录，第一个代表新的地点记录，但两者均代表该物种在大豆上的首次宿主记录。E. crenator 的分布范围从美国南部（AZ、CA、FL 和 TX）到南美洲北部，主要在北回归线和南回归线之间。尽管分布范围重叠，但我们在巴西北部（亚马逊森林）的大豆作物上没有同时发现 E. crenator 和 E. heros。Euschistus crenator 能够在大豆植株上完成其生命周期并产生有活力的后代，其发育参数与 E. heros 相似。
