Subfamily Limoniinae Speiser, 1909 (Diptera, Limoniidae) from Baltic amber (Eocene): the genus Helius Lepeletier & Serville, 1828 Author Kania, Iwona text Zootaxa 2014 3814 3 333 352 journal article 45540 10.11646/zootaxa.3814.3.2 708ea530-4c8d-473b-8f29-1a54dea92f28 1175-5326 231107 5391C375-896D-4794-84A6-1846DF9E407D Helius mutus Podenas, 2002 2002 Helius mutus Podenas , p. 235. Diagnostic characters. Rostrum very elongated, much longer than 2x the head length, longer than palpus, longer than antenna; antenna approximately half the length of rostrum, palpus approximately 0.2 the length of the rostrum; the last palpal segment not very elongated, distinctly shorter than the preceding taken together; vein r-m rather long, well expressed, cross-vein m-cu in 1/2 of d-cell base, far distad of Mb. Description. see Podenas (2002) .