Penthetria Meigen (Diptera: Bibionidae): Revision of the New World species and world catalog Author Fitzgerald, Scott J. text Zootaxa 2021 2021-02-10 4926 4 451 500 journal article 8167 10.11646/zootaxa.4926.4.1 f0b1c09e-298d-497d-b6de-cd74367c983e 1175-5326 4529512 3ADD4A2B-A3F9-4379-A8FE-39DD867531F7 Penthetria heros Say, 1829 Type Material . Female , “ Mexico ” ( Say 1829 ) . The species is unrecognizable from Say’s (1829) original description of a single female from “ Mexico ” and as with many of Thomas Say’s types , the type of this species may be lost or destroyed; the type (s) of P. heros were not found at ANSP , BMNH , MZHF , NHMW , or OXUM . According to a historical account of Say’s collecting trip to Mexico ( Papavero & Ibáñez-Bernal 2001 and references therein), “Say, in the company of William McLure, travelled and collected along the old road between Veracruz , Jalapa, Mexico City , and Tacuba, beginning in the autumn of 1827; and on the approach of summer (1828) they returned to the United States .” While this account helps to narrow down the location of the type locality of P. heros , several species of Penthetria occur in this area of Mexico . The species was not mentioned in Hardy’s (1945) work on the Neotropical species though the name was later included in Neotropical catalogs ( Hardy 1959 , 1966 ) and other regional lists of Bibionidae ( Fitzgerald 2000 ) . Considering that this species is unrecognizable from the original description and the type could not be found, P. heros is here treated as unrecognized ( nomen dubium ).