Genus Macroposthonia
de Man, 1880
Syn.:
 Mesocriconema Andrássy, 1965
Madinema Khan, Chawla & Saha, 1976
Seshadriella Darekar & Khan, 1981
Neobakernema Ebsary, 1981
Pakcriconemoides Shahina & Maqbool, 1993
Photo Gallery- Sheeder Prairie
Photo Gallery- CERA Prairie, Grinnell College
Photo Gallery- Konza Prairie
Photo Gallery- Kalsow Prairie
Diagnosis
    Macroposthoniinae.  Female:  Moderately large (about 0.3 - 0.78 mm).  Annules coarse, 40-150 in number; posterior margins rounded, smooth, slightly rough, or crenate.  Cephalic region with two to three annules, generally not modified or offset; pseudolips greatly reduced, laterals almost absent; submedian lobes present, separated from each other, first annule generally broken up into labial plates.  Stylet from very small to large, rigid.  Vulva open, directed outwards, anterior lip often lobed or spined.  Tail end rounded or pointed.  Male:  Lateral field with a single ridge by with two to four incisures, rounded cephalic region, and a distinct bursa (less prominent in M. annulata group).  Juveniles:  Annules smooth, crenate or ornamented, but lacking scales, spines or other appendages.  Male fourth-stage juveniles without stylet.

Type species
    Macroposthonia annulata de Man, 1880
           syn. Criconemoides kirjanovae Andrássy, 1962
            Neocriconema kirjanovae (Andrássy) Diab & Jenkins, 1965
            Criconemella kirjanovae (Andrássy) Luc & Raski, 1981
            M. kirjanovae (Andrássy) Siddiqi, 1986
            Mesocriconema kirjanovae (Andrássy) Loof & De Grisse, 1989
(Description- Siddiqi, 2000)

This genus included in the Criconematid Project

DNA Sequences Obtained
Specimen:    collected:
Konza FS-31 Konza Prairie
16547 La Selva Station, Peccary Ex-plots, Costa Rica
16546 La Selva Station, Peccary Ex-plots, Costa Rica
16544 Costa Rica
16138 La Selva Station, Cosa Rica
14268 La Selva Station, Costa Rica
13454 9-Mile Prairie, Nebraska
16565 Reichelt Prairie, Iowa
16801 Williams Prairie, Iowa

Species List (from Ebsary, 1991)


Species found         at:
M. curvata Konza Prairie, 9-Mile Prairie, Homestead
M. discus 9-Mile Prairie
M. annulata Konza Prairie
M. rustica Konza Prairie
M. sphaerocephalus Konza Prairie
M. xenoplax Konza Prairie