A second update to the checklist of Finnish long-legged flies (Diptera: Dolichopodidae), with a re-evaluation of the status of Hydrophorus callosoma Frey, 1915

Eighteen species of long-legged flies (Dolichopodidae) are reported as new to Finland. A further species, Microphorella praecox (Loew), is confirmed as a Finnish species. The status of Hydrophorus callosoma Frey, 1915 is re-evaluated and a lectotype is designated for the species. H. albosignatus Ringdahl, 1919 is found to be a junior synonym of H. callosoma (syn. n.). Characters for identifying both sexes of H. callosoma and H. altivagus Aldrich are presented and illustrated with high-quality photographs.

据报道，共有十八种长腿蝇（Dolichopodidae科）被认定为芬兰新记录。此外，Microphorella praecox (Loew) 被确认为芬兰的本地物种。对Hydrophorus callosoma Frey, 1915 的状态进行了重新评估，并为该物种指定了一个模态标本。发现H. albosignatus Ringdahl, 1919 是H. callosoma (syn. n.) 的晚出同物异名。本文提供了识别H. callosoma和H. altivagus Aldrich两种蝇的雌雄性特征，并配以高质量的图片进行说明。