Damaeus (Tectodamaeus)

Xie, Lixia & Yang, Maofa, 2010, Notes on the subgenus Tectodamaeus (Acari: Oribatida: Damaeidae), with the description of a new species from China, Zootaxa 2727, pp. 56-62 : 57

Key to species of Damaeus (Tectodamaeus)

1 Spinae adnatae present................................................................................. 2

- Spinae adnatae absent.................................................................................. 3

2 Anal aperture wrapped by numerous cycloidal sculpturing, spinae adnatae large and hooked.............................................................................................. Damaeus (Tectodamaeus) cordatus sp. nov.

- Anal aperture not wrapped by numerous cycloidal sculpturing; notogastral setae rather long, flagellate, curling.................................................................... Damaeus (Tectodamaeus) longus Xie & Yang comb. nov.

3 Tubercle Sp slightly acute at tip, peach-shaped................................... Damaeus (Tectodamaeus) brevisetus

- Tubercle Sp rectangular, triangle or anvil-shaped............................................................. 4

4 Tubercle Sp triangular; Seta d on femora of legs sturdy............................... Damaeus (Tectodamaeus) yaoi

- Tubercle Sp rectangular or anvil-shaped.................................................................... 5

5 The length of notogastral setae short; Propodolateral apophysis (P) bowl-like............. .. Damaeus (Tectodamaeus) cuii

- The length of notogastral setae not short................................................................... 6

6 Propodolateral apophysis (P) horn-shaped................................... Damaeus (Tectodamaeus) wulongensis

- Propodolateral apophysis (P) not horn-shaped............................................................... 7

7 With large spinuous tubercles present on femora I, II and trochanter III................ Damaeus (Tectodamaeus) spiniger

- Without large spinuous tubercles present on femora I, II and trochanter III......................................... 8

8 Tubercle Sa strongly developed; Length of tubercle Sa greater than Sp................. Damaeus (Tectodamaeus) exsertus

- Length of tubercle Sp greater than Sa ...................................................................... 9

9 Propodolateral apophysis (P) furcated at the tip, with a pair of tubercles on dorsum of acetabulum I.............................................................................................. Damaeus (Tectodamaeus) furcatus

- Propodolateral apophysis (P) not furcated at the tip.......................................................... 10

10 Tubercle Sp somewhat anvil-shaped........................................ Damaeus (Tectodamaeus) exspinosus

- Tubercle Sp rectangular at base......................................................................... 11

11 Notogastral setae roughened with dense warts and distal half finely barbed, c 1 directed anteriad............................................................................. Damaeus (Tectodamaeus) daliensis Xie & Yang , comb. nov.

- Notogastral setae thick, smooth; markedly developed distal appendage on trochantera of legs III– IV............................................................................................. Damaeus (Tectodamaeus) armatus