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大黑粉盗目前已成为储藏谷物尤其是玉米的重要害虫。本文描述了大黑粉盗幼虫和蛹的形态特征。大黑粉盗与其他储藏物甲虫幼虫的区别为:中、后胸背板无前横隆线,腹末节背板背面观呈三角形,由前向后狭窄,端部尖,端部两侧各具1对粗短刚毛。大黑粉盗蛹的主要鉴别特征有:前胸背板表面具许多微小锥形刚毛瘤,基部1/4处中央两侧具1对大刚毛瘤,前缘和侧缘具许多小锥形刚毛瘤和少量大刚毛瘤;第1~7腹节背板具较宽大侧叶突,第2~6腹节侧叶突前后缘均呈锯齿状,侧缘前半部分具2长刚毛瘤,且通常在其间有1小刚毛瘤,后角具1长刚毛瘤,第1腹节侧叶突前缘光滑,第7腹节侧叶突特别狭窄,后方弯曲后缘缺失,第8腹节侧缘平均分布3刚毛。
Big black pirates have now become an important pest of stored grains, especially corn. This article describes the morphological characteristics of Larvae larvae and pupae. Large black pirates and other stored objects beetle larvae difference: in the back of the chest without anterior transverse line, abdomen back view of the back of the triangle was from anterior to posterior narrow, the tip of the tip on both sides of each side With a pair of stubby bristles. The main distinguishing features of large black powder pupae are: the surface of the anterior thoracic plate has many small cone-shaped tumor, the base of the central 1 on both sides of a pair of large tumor, the front edge and lateral margin with many small cone bristles Tumors and a few large knobs. The first to seventh abdominal segments had wider lateral lobes. The anterior and posterior edges of the lateral lobes on the second to sixth ventral segments were serrated, and the first half of the lateral margins had two long knobs and usually In the meantime, there is a small bristles tumor, the posterior horn with a long tumor, the first abdominal section of the front of the lobes smooth, the seventh abdominal section of the lateral lobectomy is particularly narrow, the posterior bending of the trailing edge missing, Distribution 3 bristles.