The guarani group of Drosophila genus (Diptera: Drosophilidae) is formed by 24 species however the relationship of these species is not clear. In the present study are described the karyotypes of Drosophila sachapuyu Peñafiel and Rafael, 2018 and Drosophila zamorana Peñafiel and Rafael, 2018, two Andean species members of the guarani group. Mitotic chromosomes from cerebral ganglia of third stand larval were obtained by thermal shock and cell suspension techniques. The karyotype of D. sachapuyu, presents 2n = 10 (4R, 1V; X = R, Y = R) while D. zamorana exhibits karyotype 2n = 12 (5R, 1V; X = V, Y = R).

中文翻译：

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果蝇（双翅目：果蝇科）两个安第斯物种的核型描述和细胞学注释

果蝇属瓜拉尼群（双翅目：果蝇科）由 24 个物种组成，但这些物种的关系尚不清楚。在本研究中，描述了果蝇 sachapuyu Peñafiel 和 Rafael，2018 年以及 Drosophila zamorana Peñafiel 和 Rafael，2018 年，瓜拉尼组的两个安第斯物种成员的核型。通过热休克和细胞悬浮技术从第三站幼虫脑神经节中获得有丝分裂染色体。D. sachapuyu 的核型为 2n = 10 (4R, 1V; X = R, Y = R)，而 D. zamorana 的核型为 2n = 12 (5R, 1V; X = V, Y = R)。