【摘要】 记述采自京津地区的1个叶蜂新种:宽斑钩瓣叶蜂Macrophya maculipennis Wei,sp.nov.。模式标本保存于中南林业科技大学昆虫模式标本室。宽斑钩瓣叶蜂,新种Macrophya maculipennis sp.nov.(图1~4)新种隶属于Macrophya sibirica种团,与肿跗钩瓣叶蜂Macrophya crassitarsalina WeietChen,2002较为近似,但唇基缺口很深,侧角尖长;单眼后区宽1.7倍于长,侧沟浅弱;后胸淡漠区小,间距4倍于淡漠区宽;头胸部刻点浅弱,具显著光滑间隙;中胸前侧片刻点较深,边界清晰;后胸后侧片后角方钝;腹部第1背板具光滑区域;前翅前缘脉黑色,翅痣下具宽大烟斑,1r-m脉与2m-cu脉顶接;后足基节外侧白斑长大;后足基跗节细长;爪内外齿等长;产卵器等长于后足基跗节;锯刃倾斜隆起,中部锯刃具5~6个外侧亚基齿。(后者唇基缺口深仅为唇基长的1/3,侧角短三角形;单眼后区宽长比大于2,侧沟短深;后胸淡膜区大,间距等于淡膜区2倍宽;头胸部刻点粗糙密集,无光滑间隙,中胸前侧片刻点浅弱,边缘模糊;后胸后侧片吼叫圆钝;腹部第1背板刻纹细密,无光滑区域;前翅透明,无烟斑,前缘脉黄褐色,1r-m远离2m-cu脉;后足基节外侧白斑短小;后足基跗节显著膨大,爪内齿明显短于外齿;产卵器明显短于后足基跗节,锯腹片中部锯刃平坦,外侧亚基齿多于20枚)。正模♀,天津八仙山聚仙峰,海拔1052m,2007-06-20,李泽建采;副模1♀,北京门头沟小龙门,1982-06-22,李兆华采;1♀,北京门头沟小龙门,1990-07,北京林学院。编制了Macrophya sibirica种团中国已知种类分种检索表。更多还原

【Abstract】 A new sawfly species of Macrophya from Beijing and Tianjin is described:M.maculipennis sp.nov.The new species can be easily recognized by the fore wing with a large and round smoky macula below stigma.A key to known species of Macrophya sibirica group from China is provided.更多还原