Studies were conducted to broaden the current knowledge on seasonality, richness, abundance, and role of syrphids flies in the greenhouse pepper agroecosystem (GPA) in northwestern Argentina. In the GPA, a great richness (54 species) and abundance (517 individuals) of syrphids were found within Syrphinae (40 species; 443 individuals) and Eristalinae (14 species; 74 individuals) subfamilies. Besides, three species, Ocyptamus dimidiatus, O. gastrostactus and Toxomerus watsoni, were recorded for the first time in Argentina, and 12 species were recorded for the first time in Tucumán, expanding their geographical distribution to northwestern Argentina. Syrphid population tend to increase in spring and autumn. The environment occupation by different species showed remarkable differences since 41 were found in an open field, three in the greenhouse, and 10 in both environments. The richness and biodiversity were higher at the open field than in the greenhouse, however, these greenhouse species are important as biological control agents (BCA). Among them, the most abundant were Allograpta exotica, A. obliqua, T. duplicatus, Toxomerus sp. 1, O. dimidiatus and O. zoroaster, whose larvae were found feeding on pepper pests such as whiteflies and aphids. New plant-pest-predator associations were established, involving pepper, weeds, aphids, whiteflies, and syrphids. Four collection methods: Malaise trap, sweep net, infested plant tissues, and McPhail trap contributed to 59.2%, 70.4%, 8.6%, and 7.4% of total syrphid richness, respectively. Based on abundance, distribution in the GPA, and direct involvement in pepper pest control, A. exotica, A. obliqua, T. duplicatus, and Toxomerus sp.1 can be used as BCA for the control of whiteflies and aphids in GPA.

进行了研究，以拓宽当前对阿根廷西北部温室辣椒农业生态系统 (GPA) 中的梅毒蝇的季节性、丰富度、丰度和作用的认识。在 GPA 中，在 Syrphinae（40 种；443 只）和 Eristalinae（14 种；74 只）亚科中发现了大量（54 种）和 517 只（517 只）的鱼虱。此外，Ocyptamus dimidiatus、O. gastrostactus和Toxomerus watsoni 3种, 在阿根廷首次被记录，在图库曼首次记录到 12 种，将它们的地理分布扩展到阿根廷西北部。蚜虫种群在春季和秋季趋于增加。不同物种对环境的占用表现出显着差异，露地41种，温室3种，两种环境10种。开阔地的丰富度和生物多样性高于温室，但是，这些温室物种作为生物防治剂（BCA）很重要。其中，最丰富的是Allograpta异国情调，A.蠖，T. duplicatus，Toxomerus SP。1、O. dimidiatus和O. zoroaster，发现其幼虫以粉虱和蚜虫等胡椒害虫为食。建立了新的植物-害虫-捕食者协会，涉及胡椒、杂草、蚜虫、粉虱和蚜虫。四种收集方法：病虫害诱捕器、清扫网、受侵染植物组织和麦克菲尔诱捕器分别占总梅毒丰富度的 59.2%、70.4%、8.6% 和 7.4%。基于丰富，在GPA的分布，并在辣椒病虫害防治，直接参与A.异国情调，A.蠖，T. duplicatus，并Toxomeru小号SP.1可作为BCA在GPA粉虱和蚜虫的控制。