Five new species of Ceratoppia (Acari: Oribatida: Peloppiidae) from western North America
Author
Lindo, Zoe
text
Zootaxa
2011
3036
1
25
journal article
46314
10.5281/zenodo.204548
9c766b46-1c9c-4f57-884e-b250f2eafee8
1175-5326
204548
Key to adults of species of
Ceratoppia
known from North
America
1. Mentum of subcapitulum with two pairs of hypostomal setae................................................... 2
- Mentum of subcapitulum with one pair of hypostomal setae.................................................... 3
2. Two pairs of long posterior notogastral setae (
p1
,
p3
).....................................
C. bipilis
(Hermann)
group (Holarctic, widespread in North
America
)
- Two pairs of very short posterior notogastral setae (
p1
,
p3
)........................................
C. valerieae
n. sp.
(known from BC, AB, WA, OR, CA)
3. Two or three pairs of conspicuous notogastral setae........................................................... 4
- Notogastral setae reduced, much shorter than length of rostral setae.............................................. 8
4. Three pairs of notogastral setae long, conspicuous (
h1
,
p2
,
p3
)..................................
C. sexpilosa
Willmann
(known from AK, YK, NT, NU)
- Two pairs of conspicuous notogastral setae................................................................. 5
5. Rostrum deeply indented with inset medial tooth; interlamellar setae distinctly shorter than length of lamellae; notogastral setae
h1
and
p3
expressed; barbed epimeral setae (3–1–2–3).......................................
C. indentata
n. sp.
(known from BC, WA, OR, CA)
- Rostrum not deeply indented, rounded (dentate) or with large medial tooth........................................ 6
6. Rostrum with strong medial tooth and lateral denticles; lamellae reaching insertion of rostral setae; interlamellae setae as long or longer than lamellae........................................................
C. quadridentata
(Haller)
group (Holarctic, widespread in northern North
America
)
- Rostrum rounded anteriorly, dentate, but without medial tooth; lamellae not reaching insertion of rostral setae............ 7
7. Large (700–1000 um); dark (almost black) in colour; lamellar setae longer than rostral setae; interlamellar setae as long as prodorsum, longer than lamellae; lamellae short cusps; two pairs of medium length posterior notogastral setae (
p1
,
p3
)............................................................................................
C. sphaerica
(L. Koch)
(known from AK, YK, NT, NU)
- Smaller species (550–650 um), reddish in colour, with prominent rostral bump in lateral view; two pairs of medium length posterior notogastral setae (
p1
,
p3
)............................................................
C. offarostrata
n. sp.
.......................................................................................(known from BC)
8. Three pairs of reduced notogastral setae (
p1
,
p2
,
p3
), in particular setae
p2
minute, not discernable in all specimens; lamellae long, reaching insertion of rostral setae, with 2/3 free cusps; lamellar setae reduced, much shorter than rostral setae; large medial rostral tooth with lateral denticles; interlamellar setae long, reaching past tips of lamellae.......
C. longicuspis
n. sp.
(known from BC, WA, OR, CA)
- Two pairs of reduced notogastral setae (
p1
,
p3
); lamellae with short cusps, not reaching insertion of rostral setae; interlamellar setae longer than lamellae; wide medial rostral tooth; smaller species (530–580 um)..................
C. tofinoensis
n. sp.
(known from BC, WA, OR)