Stegorhabditis Shah, Hussain, Vaid & Ahmad, 2015a

Abolafia, Joaquín, 2023, A proposal to synonymize Loffienema with Haematozoon, Quercorhabditis with Diploscapteroides, and Stegorhabditis with Stomachorhabditis (Nematoda Rhabditida, Rhabditomorpha), including keys to species identification, Zootaxa 5258 (2), pp. 231-238 : 236

Stegorhabditis Shah, Hussain, Vaid & Ahmad, 2015a

This genus is characterized by having lip region very narrow, amphids very posterior, stoma tubular, long, having long denticles at metastegostom, pharynx with swollen, ovoid metacorpus, female reproductive system didelphicamphidelphic, tail in both sexes filiform, bursa absent and spicules with rounded and ventrally bent manubrium. This morphology agrees with the species of the genus Stomachorhabditis Andrássy, 1970 with which it is indistinguishable.

The authors that proposed the creation of the genus Stegorhabditis distinguished the specimens of this genus in having "six lips, evenly cuticularized stoma, presence of glottoid apparatus, a pair of setose denticles on each plate of stegostom, absence of stomach like folding in intestine, and in shape of spicules and gubernaculum". However, these characters appear in the species of the genus Stomachorhabdis. Thus, e. g., the presence of six lips and the absence of stomach-like folding appear clearly in S. fastidiosa described by Massey (1971), setose denticles (incorrectly described as "a pair on each plate" because only one denticle is visible on each valve of the glottoid apparatus) are present at the stoma of all species of the genus, while the morphology of spicules and gubernaculum are identical in S. vietnamicus described by Andrássy (1970) and S. neotropica described by Andrássy (2001). On the other hand, the presence of a glottoid apparatus in S. abursata was wrongly drawn being this structure clearly absent in the light microscopy pictures provided by the authors. According to this, Stegorhabditis is proposed as a junior synonym of Stomachorhabditis .

The only species described in Stegorhabditis , S. abursata Shah, Hussain, Vaid & Ahmad, 2015a , is very similar to other species belong to the genus Stomachorhabditis , distinguished from them by having lip region poorly differentiated from the adjacent part of body. According to this, S. abursata is transferred to the genus Stomachorhabditis as S. abursata ( Shah, Hussain, Vaid & Ahmad, 2015a) n. comb.