Parajulid milliped studies XII: Initial assessment of Ptyoiulus Cook 1895 and neotype designations for Julus impressus Say 1821 and J. montanus Cope 1869 (Diplopoda: Julida) Author Shelley, Rowland M. Author Smith, Jamie M. text Insecta Mundi 2016 2016-12-23 2016 522 1 21 journal article 10.5281/zenodo.5171034 1942-1354 5171034 C3632B4F-DC84-4BE3-AC14-CEF641AAF8CB Order Julida Brandt 1833 Family Parajulidae Bollman 1893 Key to US and Canadian parajulid family-group taxa occurring east of the Rocky Mountains 1. — Epiproct short and blunt, not, or only barely, overhanging paraprocts; anterior gonopods with lateral syncoxal processes ......................................................................................................... 2 Epiproct moderately long to long, clearly overhanging and extending beyond level of paraproctal margins, apically acuminate; anterior gonopods without lateral syncoxal processes ........... 3 2. — Small-bodied to minute parajulids, posterior gonopods with three ventrally directed projections (two in the Mexican genus), solenomere longest; central Colorado to northwestern Arizona, east central Texas, and Nuevo León , Mexico ( Shelley and Smith 2016 ) .................................. .............................................................................................................. Gosiulini Causey 1974 Small-bodied to moderately large parajulids ; posterior gonopods usually with two ventrally directed projections, solenomere usually longer; anteromedial margins of 8 th male sterna with anteriorly-directed lobes protruding over aperture and usually between gonopods; Alberta and Québec to southern peninsular Florida , the Rio Grande in Texas , southern New Mexico , and southwestern Arizona ................................................................... Aniulini Causey 1974 3. — Caudal rings, paraprocts, and epiproct heavily setose; latter extending directly caudad; Québec and northern Vermont to northern Florida , westward to southeastern Wisconsin , the Mississippi River from southern Illinois to southern Tennessee and northeastern Arkansas ......................................................................................................... Ptyoiulinae Causey 1974 Caudal rings, paraprocts, and epiproct glabrous or with at most only scattered setae; epiproct either angling slightly ventrad distally (juveniles) or strongly decurved and falcate (late instars and adults); James Bay, Ontario, southern Québec, and western New Brunswick to central Georgia , westward to Illinois ..................................................... Uroblaniulini Causey 1974