A new apoid genus with one new species Heterosphex wuni Li, Rosa, Melo and Shih gen. et sp. nov. is described in Cirrosphecidae based on a male wasp from mid-Cretaceous Myanmar (Burmese) amber. The new taxon is placed in Cirrosphecidae due to its swollen, ring-like metanotum with anterior margin surrounding the scutellum; omaular sulcus and omaular carina absent; propodeum short, with rounded edges and distinctly slanted; metapostnotum extending as a narrow triangle onto posterior surface of propodeum; notaulus not indicated; claws with subapical teeth; and mid tibia with one spur. A key for genera and species of Cirrosphecidae is provided. Up to date, all taxa in Cirrosphecidae are known only from mid-Cretaceous Myanmar amber.

具有一个新种Heterosphex wuni Li、Rosa、Melo 和 Shih gen 的一个新的无足类属。等人。十一月 基于来自白垩纪中期缅甸（缅甸）琥珀的雄性黄蜂在 Cirrosphecidae 中被描述。新的分类单元由于其肿胀的、环状的、前缘围绕盾片的前缘而被归入环蛇科；无眼沟和无眼隆突；proodeum 短，有圆形边缘和明显倾斜；metapostnotum 作为一个狭窄的三角形延伸到 proodeum 的后表面; notaulus 未指明；尖下齿的爪子；和胫骨中部有一个骨刺。提供了卷云虫科属和种的密钥。迄今为止，Cirrosphecidae 中的所有分类群仅来自白垩纪中期的缅甸琥珀。