Ceratoppia,

Lindo, Zoe, 2011, Five new species of Ceratoppia (Acari: Oribatida: Peloppiidae) from western North America, Zootaxa 3036, pp. 1-25: 23-24

publication ID

http://doi.org/ 10.5281/zenodo.204548

persistent identifier

http://treatment.plazi.org/id/166F87A3-FC02-DF57-FF08-F925FA2D6DB3

treatment provided by

Plazi

scientific name

Ceratoppia
status

 

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 (p 1, p 3)..................................... C. bipilis (Hermann)  group (Holarctic, widespread in North America)

- Two pairs of very short posterior notogastral setae (p 1, p 3)........................................ 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 (h 1, p 2, p 3).................................. 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 h 1 and p 3 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 (p 1, p 3)............................................................................................ 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 (p 1, p 3)............................................................ C. offarostrata  n. sp........................................................................................(known from BC)

8. Three pairs of reduced notogastral setae (p 1, p 2, p 3), in particular setae p 2 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 (p 1, p 3); 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)