【目的】 传统彩色昆虫绘图技法技术难度大，且受限于颜料、纸张等绘画媒介。新近出现的数字绘图技法难度较低，便于修改，在绘制科学图方面有着显著的优势。本文详细叙述了使用数字绘图技术绘制透翅毛瓣寄蝇（双翅目：寄蝇科）彩图的步骤及操作方法，向昆虫学工作者介绍这一高清绘图新技术，便于提高昆虫物种形态描述或重新描述的效果。【方法】 新的彩色数字绘图技术利用数位板和SAI绘图软件，借助于该软件中的铅笔工具、喷枪和作者开发的“厚涂笔”、“炭笔”、“粉被”等笔刷工具和绘图素材，对透翅毛瓣寄蝇不同形态部位的线稿图层进行细化、底色、阴影、高光、翻转等绘制处理，创造了一套图层命名管理方法及绘图技巧组合方法。【结果】 利用本文介绍的彩色数字绘图技术可以很好地表现透翅毛瓣寄蝇的色泽和质感，完成7 000×5 000像素（35 M）的超高清整体背面观形态图的绘制。【结论】 利用这种数字彩色绘图技术绘制的昆虫图像具有色泽丰富、容易修改、节约时间、节省储藏空间、细节逼真、保存和携带方便、永不褪色。这种数字彩色绘图技术具有很强的实用性。

[Objectives]  Traditional color scientific illustrations are difficult to produce, requiring both a high level of artistic skill and specialist drawing media such as pigments and paper. Digital drawings have the advantages of being both easier to produce and correct. This paper gives step by step instructions on how to use digital drawing techniques to make a color scientific illustration of Nemoraea pellucida (Diptera: Tachinidae), which could help entomologists produce high-quality illustrations to describe, or redescribe, other insect species. [Methods]  A pen tablet and Easy Paint Tool SAI software were used to post-process a line sketch of N. pellucida. The latter has many digital drawing tools, including pencil, sprayer, and a newly modified “impasto brush”, “charcoal brush” and “microtomentum brush”, which allows precise rendition of coloration and texture for different parts of insects. Refinement of the original drawing, the addition of ground color, shadow, highlights and image reversal, are all easily achieved. [Results]  Using digital techniques, a high resolution, 7 000 by 5 000 pixel (35 M) illustration of N. pellucida was created. [Conclusion]  Using digital techniques to illustrate insects has the advantages of allowing non-artists to achieve precise rendition of color and detail, ease of correction and modification, portability, and significant savings of both time and storage space. In addition, the resultant images do not deteriorate over time.