Steinernema species



Described Species of Steinernema:

Steinernema affinis

Steinernema anomali

Steinernema carpocapsae

Steinernema feltiae

Steinernema glaseri

Steinernema intermedia

Steinernema kushidai

Steinernema rara

Steinernema scapterisci



Steinernema affinis

Description:

Bovien, P. 1937. Some types of association between nematodes and insects. Vidensk. Medd. Dansk Naturhist. For. 101:1-114.

Poinar, G. O., Jr. 1988. Redescription of Neoaplectana affinis Bovien (Rhabditida: Steinernematidae). Rev. Nematol. 11:143-147.

Diagnostic Morphological Features:

1. Males have colorless or gray spicules

2. males have a minute tail mucron

3. hales have a refractile spine in tip of the tail

Molecular Diagnostic Features:

1. Under construction



Steinernema anomali

Description:

Kozodoi, E. M. 1984. A new entomopathogenic nematode, Neoaplectana anomali sp. N., (Rhabditida, Steinernematidae) and observations on its biology. Zool. Zhur. 63:1605-1609. (better bone up on your Russian)

Diagnostic Morphological Features

1. A slightly swollen tip of its spicule is all that can distinguish an adult from S. glazeri.

Molecular Diagnostic Features:

1. Under construction



Steinernema carpocapsae

Description:

1. See review in Poinar, G. O., Jr. 1990. Taxonomy and biology of Steinernematidae and Heterorhabditidae, pp.l 23-61. In R. Gaugler and H. K. Kaya (eds.) Entomopathogenic nematodes in biological control. Crc Press. Boca Raton.

Diagnostic Morphological Features:

1. Males have small mucron on the tail tip (1-4 microns)

2. Spicules are gray -yellow, with distinct rostrum and capitulum.

Molecular Diagnostics:

1. Under construction



Steinernema feltiae

Description:

Filipjev, I. N. 1934. The classification of the free living nematodes and their relation to parasitic nematodes. Smithson. Misc. Coll. 89:1- 63.

Diagnostic Morphological Features:

1. male tail has terminal mucron (4-13 microns)

2. spicules are yellow-orange, no distinct capitulum or rostrum

3. distinguishable from s. carpocapsae by having its excretory pore more anterior

Molecular Diagnostics:

1. Under construction



Steinernema glaseri

Description:

Steiner, G. 1923. Aplectana kraussei n. sp., einer in der Blattwespe Lyda sp. parasitierende Nematodenform, nebst Bemerkungen uber das Seitenorgan er parasitischen Nematoden. Zentral. Bakteriol. Parasit. Infect. Hyg. Abt. 59:14- 18.

Diagnostic Morphological Features:

1. males lack terminal tail mucron

2. spicules have a terminal ventral notch, hook, or scar.

Molecular Diagnostics:

1. Under construction



Steinernema intermedia

Description:

Poinar, G. O., Jr. 1985. Neoaplectana intermedia n. sp. (Steinernematidae: Nematoda) from South Carolina. Rev. Nematol. 8:321-327.

Diagnostic Morphological Features:

1. Males don’t have terminal tail mucron

2. spicules are bluntly rounded

3. spicules are strongly curved.

Diagnostic Molecular Features:

1. Under construction



Steinernema kushidai

Description:

Mamiya, Y. 1988. Steinernema kushidai n. sp. (Nematoda: Steinernematidae) associated with scarabaeid beetle larvae from Shizuoka, Japan. Appl. Entomol. Zool. 23:313-320.

Diagnostic Morphological Features:

1. constricted gubernaculum

2. spicules are colorless

3. spicules have a rounded manubrium

Diagnostic Molecular Features:

1. Under construction



Steinernema rara

Description:

de Doucet, M. M. A. 1986. A new species of Neoaplectana Steiner, 1929 (Nematoda: Steinernematidae) from Cordoba, Argentina. Rev. Nematol. 9:317- 323.

Diagnostic Morphological Features:

1. Male has only 21 genital papillae (all other congeners have 23 )

2. male mucron is present

3. spicules are lemon yellow

Diagnostic Molecular Features

1. Under construction



Steinernema scapterisci

Description:

Nguyen, K. B., Smart, G. C., Jr. & Khuong, N. B. 1990. Steinernema scapterisci n. sp. (Rhabditida: Steinernematidae). J. Nematol. 22:187-199.

Distinguishing Morphological Features:

1. Under construction

Diagnostic Molecular Features

1. Under Construction