Milichiidae online

In Diptera the mesothorax is greatly enlarged to accommodate the muscles for the single pair of wings, whereas both the prothorax and metathorax are very reduced. The prefixes pro-, meso-, and meta- are usually attached to the different sclerites of the corresponding thoracic segments, e.g. prosternum, mesonotum, and metepimeron, but because of the predominance of the mesothorax, the prefix meso- is frequently omitted when referring to the sclerites of that segment. (ex McAlpine 1981).