Gustavia

Gustavia microcephala, copyright R. Penttinen.

Belongs within: Circumdehiscentiae.

Gustavia is a genus of oribatid mites found in the Holarctic and Ethiopian regions, characterised by remarkable long, styliform chelicerae bearing distal serrations. It has been suggested that these may be used to scrape bacterial films (Norton & Behan-Pelletier 2009).

Characters (from Norton & Behan-Pelletier 2009): Length ca 600 µm. Subcapitulum anarthric; chelicerae styliform, movable digit serrate distally, fixed digit absent. Prodorsum with true lamellae. Notogaster with octotaxic system absent; dorsophragmata and pleurophragmata present. Border of epimere IV with minitectum.

<==Gustavia Krammer 1879 [incl. Neozetes Berlese 1885, Serrarius Michael 1883; Gustaviidae, Serrariinae] S04
    |--G. microcephala (Nicolet 1855) S04 (see below for synonymy)
    |--G. aethiopica Mahunka 1982 S04
    |--G. fusifer (Koch 1841) [=Oribata fusifer] S04
    |--G. latolamellata Hammer 1977 S04
    |--G. longicornis (Berlese 1904) [=Serrarius longicornis] S04
    |--G. longiseta Mahunka 1984 S04
    |--G. magnifica Golosova & Karppinen 1984 S04
    |--G. magnilamellata (Ewing 1909) [=Liacarus magnilamellatus; incl. Serrarius connexus Berlese 1916] S04
    |--G. maior (Berlese 1904) [=Serrarius maior; incl. G. microcephala longirostris Mihelčič 1957] S04
    |--G. oceanica Pérez-Íñigo 1987 S04
    |--G. parvula (Banks 1909) [=Liacarus parvulus] S04
    `--G. rugosa Balogh 1958 (n. d.) S04

Gustavia microcephala (Nicolet 1855) S04 [=Leiosoma microcephala S04, Serrarius microcephalus S22; incl. Neozetes bicornis Berlese 1885 S04, *Gustavia sol Kramer 1879 S04]

*Type species of generic name indicated

REFERENCES

Norton, R. A., & V. M. Behan-Pelletier. 2009. Suborder Oribatida. In: Krantz, G. W., & D. E. Walter (eds) A Manual of Acarology 3rd ed. pp. 430–564. Texas Tech University Press.

[S22] Schweizer, J. 1922. Beitrag zur Kenntnis der terrestrischen Milbenfauna der Schweiz. Verhandl. Naturf. Ges. Basel 33: 23–112, 4 pls.

[S04] Subías, L. S. 2004. Listado sistemático, sinonímico y biogeográfico de los ácaros oribátidos (Acariformes, Oribatida) del mundo (1758–2002). Graellsia 60 (número extraordinario): 3–305.