First Record of Cephalobellus brevicaudatus (Leidy, 1851) Christie, 1933 (Nematoda: Oxyurida: Thelastomatoidea), from Cranefly Larvae (Diptera: Tipulidae) in Ohio, U.S.A.

Abstract

Specimens of the tipulid (cranefly) larvae Tipula (Pterelachisas) sp. Rondani (n = 118) were recovered from rotting logs in 2 forests of central Ohio from 2011 to 2016. Examination of the posterior intestine revealed the presence of the thelastomatid nematode Cephalobellus brevicaudatus (Leidy, 1851) Christie, 1933. This finding constitutes the first North American record for the parasite in a dipteran larva and the first Nearctic report of this species since 1851. First morphological data for the males from North America are provided, and voucher ribosomal DNA sequences for C. brevicaudatus and for the hosts were compiled.