Gustavia Kramer 1879
Creators: name: Revelo-Tobar, Harol
name: Estrada-Venegas, Edith G.
name: Martinez, Armando Equihua
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Gustaviidae
Gustavia

description: Keys for species of the genus Gustavia (Updated from Pérez-Íñigo 1987, 1997)
Gustavia magnilamellata (Ewing, 1909) (= Serrarius connexus Berlesle, 1916), Gustavia parvula (Banks, 1909) and Gustavia rugosa Balogh, 1958 were not included in this key because their descriptions do not provide sufficient information on their morphology.
1 Sejugal suture present.................................................................................. 2
- Sejugal suture absent.................................................................................. 4
2 Translamella absent............................................ Gustavia mexicana sp. nov. Distribution: Mexico.
- Translamella present................................................................................... 3
3 Setae barbulate; in smooth; translamella with deep depression; fusiform sensillum, thin head covered with short spines...................................... Gustavia magnifica Golosova & Karppinen, 1984. Distribution: East Asian Russia.
- le setae smooth; in slightly barbed; depression of translamella slightly deep; sensillum fusiform, head widened and smooth.................................................... Gustavia latolamellata Hammer, 1977. Distribution: Pakistan.
4 Translamella absent................................................................................... 5
- Vestigial, incomplete or absent translamellae.............................................................. 10
5 Rostrum with pointed or rounded end..................................................................... 6
- Rostrum not pointed or rounded, concave in center........................................................... 7
6 Setas in slightly barbed, lamellae considerably broad; rostrum slightly elongated and broad; apophyses adjacent to rostrum broad and evident................................... Gustavia transylvanica Mahunka, 2006. Distribution: Romania.
- Setae in smooth setae; lamellae narrowly flared; rostrum elongated, ending in a point and with narrow, inconspicuous apophyses............................ Gustavia maior (Berlese, 1903) (= Gustavia microcephala longirostris Mihelčič, 1957). See description and diagrams in: (Pérez-Íñigo 1997). Distribution: Mediterranean.
7 Short rostrum, barely projecting beyond the lamellar cusps ……………………………………………………….……… Gustavia microcephala (Nicolet, 1855) (= Gustavia sol Kramer, 1879). See description and diagrams in: (Pérez-Íñigo 1997). Distribution: Palearctic (frequent), Eastern and Mexico?
- Rostrum elongate, projecting beyond lamellar cusps.......................................................... 8
8 Rostrum and translamella with deep depression............. Gustavia aethiopica Mahunka, 1982. Distribution: Ethiopic.
- Rostrum and translamella straight........................................................................ 9
9 Long lamellar cusps; sensillum with short spines covered head..................... Gustavia longicornis (Berlese, 1903). See description and diagrams in: (Pérez-Íñigo 1997). Distribution: Mediterranean and Oriental.
- Short lamellar cusps; sensillum with elongated head equal to half its length, with a few setae at the end........................................ Gustavia fusifer (Koch, 1841) (= Neozetes bicornis Berlese, 1885; = Oribata globula Koch, 1841). See description and diagrams in: (Pérez-Íñigo 1997). Distribution: Western Palearctic.
10 Long modified gnathosoma, almost as long as rostral Setae................................................... 11
- Short modified gnathosoma, hidden under the rostral tectum.................................................. 12
11 Lamellar cusps shorter than lamellae width; sensillum head covered distally with small spines; setae p1, p2 and p3 present...................................................... Gustavia ornata Mahunka, 2011. Distribution: Madagascar.
- Lamellar cusps longer than the width of the lamellae; sensillum head covered distally with 2–3 short spines and very long setiform termination; setae p1 long, p2 and p3 represented only by alveoli............................................................................................ Gustavia sineornata Mahunka, 2011. Distribution: Madagascar.
12 Translamella absent; lanceolate sensillum..................... Gustavia aominensis Fujikawa, 2008. Distribution: Japan
- Incomplete translamella; fusiform sensillum.............................................................. 13
13 Setae in long, almost reaching the anterior end of the setae le; sensillum lanceolate, with very small spines on the head; p1 setae very long, setae p2 and p3 setae absent, represented by alveoli............................................................ Gustavia longiseta Mahunka, 1984. See description and diagrams in: (Ermilov et al. 2013). Distribution: Ethiopic
- Setas in short, barely reaching the insertion points of the setae le; sensillum fusiform; setae p1, p2 and p3 present, setiform and short.................................................................................................. Gustavia oceanica Pérez-Íñigo, 1987. Distribution: Southern Palearctic (western Mediterranean) and Eastern (India: West Bengal, and Philippines)
description: Published as part of Revelo-Tobar, Harol, Estrada-Venegas, Edith G. & Martinez, Armando Equihua, 2022, New records of oribatid mites from Mexico with description of a new species, pp. 24-38 in Zootaxa 5168 (1) on pages 35-36, DOI: 10.11646/zootaxa.5168.1.2, http://zenodo.org/record/6885643