Steinernema neocurtillis n. sp. (Rhabditida: Steinernematiclae) and a Key to Species of the Genus Steinernema
Nguyen, K.B.; Smart, G.C.
Journal of Nematology 24(4): 463-477
1992
ISSN/ISBN: 0022-300X PMID: 19283024 Document Number: 400184
Steinernema neocurtillis n. sp. isolated from the mole cricket Neocurtilla hexadactyla Perty can be distinguished from other members of the genus by characteristics of the first-generation male and the third-stage infective juvenile (IJ). In the male, the distance from the anterior end to the excretory pore (DAE) is less than the body width at the excretory pore; D% (DAE divided by length of esophagus X 100) is low at 19. The gubernaculum length is greater than three-fourths the spicule length. Range of the ratio gubernaculum length divided by spicule length is 0.82-0.93 in the first-generation male and 0.92-1.00 in the second-generation male. In the IJ, the distance from the anterior end to the excretory pore is extremely short (18 micromoles), causing the D% and E% (DAE divided by tail length X 100) to be low (D% = 23 and E% 12). Average body length of the IJ is 885 micromoles.