Abstract
BackgroundVanhornia eucnemidarum Crawford is the only species of Vanhorniidae that occurs in North America. This species is rarely collected and thus the distribution is not well documented. Intending to uncover a more accurate range of this species, we assembled collection records from museums, personal collections and citizen science projects. Many of these records were non-digitised and had to be personally requested.New informationHere we expand the known distribution of V. eucnemidarum to include nine new provinces and states: Manitoba, Connecticut, Oregon, Mississippi, Missouri, New Hampshire, New Jersey, Texas and Wisconsin. Although Quebec has been listed as a previous locality, the recorded province was mislabelled, so Quebec is now also officially a provincial record.
Highlights
In spite of the fact that many species on our planet remain undescribed (Scheffers et al 2012), our in-depth knowledge of described species is often lacking in basic biology, ecology or geographic range information
Vanhornia eucnemidarum is the only North American species, with a known range including the states of Florida, Georgia, Kansas, Kentucky, Maine, Maryland, Michigan, New York, North Carolina, Ohio, South Carolina, Tennessee, Virginia and West Virginia and the Canadian provinces of Ontario and Quebec (Champlain 1922, Crawford 1909, Deyrup 1985, Haines 2008, Johnson 2017, Keim 2017, Kleiner et al 2019, Townes and Townes 1981)
Along with North American records of V. eucnemidarum, this species has been recorded in South Korea (Choi and Lee 2012)
Summary
In spite of the fact that many species on our planet remain undescribed (Scheffers et al 2012), our in-depth knowledge of described species is often lacking in basic biology, ecology or geographic range information. There is often a wealth of information stored within smaller non-digitised collections and citizen science platforms (Ridenbaugh et al 2018, Silvertown 2009, Skvarla et al 2015) When collated, these sources can greatly increase knowledge on species, with respect to geographic range. Vanhorniidae (Hymenoptera: Proctotrupoidea, Fig. 1A) are uncommonly collected parasitoids of false click beetle larvae (Coleoptera: Eucnemidae) They can be distinguished from other proctotrupoids using a combination of characters: exodont mandibles (Fig. 1D), low attachment of the antennae (Fig. 1C), deeply pitted mesosoma (Fig. 1B) and long exserted ovipositor, projecting anteriorly from the base and housed in a ventral groove (Champlain 1922, Crawford 1909, Deyrup 1985, Haines 2008, Johnson 2017, Keim 2017, Kleiner et al 2019, Townes and Townes 1981). Quebec has been listed as a previous locality, the recorded province was mislabelled, so Quebec is officially a provincial record
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