Ruspolia differens (Serville) (Orthoptera: Tettigoniidae) is a delicacy in many African countries. It is commonly mass-harvested from the wild using light traps consisting of energy-intensive mercury bulbs which pollute the environment when poorly disposed. The catch is collected using open-ended drums which are inefficient in retaining the insects. The drums also collect nontarget insects including those that produce toxic chemicals (such as pederin) that cause severe burns to human skin. To prevent escape of trapped R. differens, trappers apply potentially hazardous substances like waste cooking oil on the walls of drums. Here, we modified the collection drum by fitting a funnel to retain R. differens; and partitioned it into three compartments with wire meshes of variable sizes to filter nontarget insects. Additionally, we replaced mercury bulbs with light-emitting diode (LED) bulbs which are energy-efficient. We evaluated the performance of the modified R. differens trap (modified drums and LED bulbs) compared to the current collection drums and mercury bulbs. The catch of R. differens in the modified drums was comparable to that of current drums. Nontarget insects were significantly filtered from the catch collected in modified drums compared to the current drums. Further, LED bulbs of 400 W trapped a comparable quantity of R. differens as 400 W mercury bulbs, but with less than half the consumption of electricity compared to the mercury bulbs. We concluded that modified R. differens light traps have better energy-use efficiency and ensure safety to collectors, processors, and consumers.

中文翻译：

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高效收获安全食用蚱蜢：改良鼓和发光二极管灯泡在乌干达收获 Ruspolia differentens（直翅目：Tettigoniidae）的评价

Ruspolia different (Serville)（直翅目：Tettigoniidae）是许多非洲国家的美味佳肴。它通常是使用由能源密集型汞灯泡组成的捕光器从野外大量捕捞的，如果处置不当，则会污染环境。使用末端开口的滚筒收集捕获物，这在保留昆虫方面效率低下。鼓还收集非目标昆虫，包括那些产生有毒化学物质（如pederin）的昆虫，这些化学物质会对人体皮肤造成严重烧伤。为了防止被困的 R.differens 逃逸，捕集者在桶壁上涂抹潜在的危险物质，如废弃的食用油。在这里，我们修改了收集鼓，安装了一个漏斗来保留 R.differens；并用不同尺寸的金属丝网将其分成三个隔间以过滤非目标昆虫。此外，我们用节能的发光二极管 (LED) 灯泡代替了水银灯泡。与电流收集鼓和汞灯泡相比，我们评估了改进的 R.differens 捕集器（改进的鼓和 LED 灯泡）的性能。改良后的鼓中 R. differentens 的捕获量与当前鼓的捕获量相当。与目前的鼓相比，非目标昆虫从收集在改进鼓中的捕获物中被显着过滤。此外，400 W LED 灯泡捕获的 R. 量与 400 W 汞灯泡相当，但与汞灯泡相比，其耗电量不到一半。我们得出的结论是，改良的 R. differentens 光阱具有更好的能源利用效率，并确保收集器、加工商和消费者的安全。与电流收集鼓和汞灯泡相比，我们评估了改进的 R.differens 捕集器（改进的鼓和 LED 灯泡）的性能。改良后的鼓中 R. differentens 的捕获量与当前鼓的捕获量相当。与目前的鼓相比，非目标昆虫从收集在改进鼓中的捕获物中被显着过滤。此外，400 W LED 灯泡捕获的 R. 量与 400 W 汞灯泡相当，但与汞灯泡相比，其耗电量不到一半。我们得出的结论是，改良的 R. differentens 光阱具有更好的能源利用效率，并确保收集器、加工商和消费者的安全。与电流收集鼓和汞灯泡相比，我们评估了改进的 R.differens 捕集器（改进的鼓和 LED 灯泡）的性能。改良后的鼓中 R. differentens 的捕获量与当前鼓的捕获量相当。与目前的鼓相比，非目标昆虫从收集在改进鼓中的捕获物中被显着过滤。此外，400 W LED 灯泡捕获的 R. 量与 400 W 汞灯泡相当，但与汞灯泡相比，其耗电量不到一半。我们得出的结论是，改良的 R. differentens 光阱具有更好的能源利用效率，并确保收集器、加工商和消费者的安全。修改后的鼓的差异与当前鼓的差异相当。与目前的鼓相比，非目标昆虫从收集在改进鼓中的捕获物中被显着过滤。此外，400 W LED 灯泡捕获的 R. 量与 400 W 汞灯泡相当，但与汞灯泡相比，其耗电量不到一半。我们得出的结论是，改良的 R. differentens 光阱具有更好的能源利用效率，并确保收集器、加工商和消费者的安全。修改后的鼓的差异与当前鼓的差异相当。与目前的鼓相比，非目标昆虫从收集在改进鼓中的捕获物中被显着过滤。此外，400 W LED 灯泡捕获的 R. 量与 400 W 汞灯泡相当，但与汞灯泡相比，其耗电量不到一半。我们得出的结论是，改良的 R. differentens 光阱具有更好的能源利用效率，并确保收集器、加工商和消费者的安全。但与水银灯泡相比，耗电量不到一半。我们得出的结论是，改良的 R. differentens 光阱具有更好的能源利用效率，并确保收集器、加工商和消费者的安全。但与水银灯泡相比，耗电量不到一半。我们得出的结论是，改良的 R. differentens 光阱具有更好的能源利用效率，并确保收集器、加工商和消费者的安全。