摘要
枸杞是我国名贵中药,主产宁夏,近十余年间不少省区广为引种,已成为一宗出口药材。此类植物是多种害虫的专食寄主,1987年8月于银川在枸杞育苗中发现一种蝇蛆潜食叶肉,庭院中的枸杞植株上也易见到为害;虽则大田栽培的枸杞园中尚未发现。这可能由于大田中对害虫常采取防治措施之故,可是如不加注意,今后有可能成为枸杞园重要害虫,值得警惕。我们对此蝇作了分类鉴定,为花蝇科泉蝇属Pegomya Rob.-Desv.的一新种,现记述如下:
A serious pest, whose maggots mine the leaves of Lycium harbarum Linn. , a Chinese medicinal herb, is here described as a new species of Anthomyiidae. Pegomya lycii Fan et Gao, sp. nov. (Figs 1-12)Body length: (?) 5-5.5 mm; (?) 5-5.8 mm; 3rd stage larva, 5.2 mm. The new species is very similar to one of the Pegomya hyoscyami group in external features as well as male terminalia, and resembles the Japanese species Pegomya falsiforcipis Suwa in male terminalia; but it may be separated from them by the different appearance in surstylus, prcgonite and aedeagus. The new species has the following characters: antenna) segments yellow; surstylus strongly sclerotized and subsymmetric, its apex bifurcated with inner twig pointed and shorter, with an outer twig longer and obliquely truncated and a slender outgrowth pointing forwards from the lateral upper corner.Female terminalia in situ: 6th tergite only with marginals laterally, 7th tergite hairy, and all hairs with curly apices. The 3rd stage larva is also described.Holotype (?) , Yingchuan, Ningxia, 6-Ⅸ-1987, collected by Gao Zhaoning; paratypes 1 (?) 2 (?) (?), same as the holotype.Types are kept in the Shanghai Institute of Entomology, Academia Sinica.Bionomics of the new species is briefly reported.
