Dactyloscirus

Skvarla, Michael J. & Dowling, Ashley P. G., 2012, Some new armascirine cunaxids (Acari: Prostigmata: Cunaxidae) from the Eastern United States, Zootaxa 3194, pp. 1-34 : 31

Key to female Dactyloscirus

The following key, based on one presented by Smiley (1992), has been modified and illustrated to reduce ambiguous characters. The following species, in addition to those newly described in this work, have been included for completeness: Dactyloscirus philippinensis , D. trifidus , D. orsi , D. minys , D. dicondylus , D. agricolus , D. rosarioae , D. bifidus , D. illutus , D. smileyi and D. hoffmannae .

1 Palpal tibiotarsi and genua with adjoining apophyses ( Fig. 24 a–h).............................................. 2

- Palpal tibiotarsi and genua without adjoining apophyses ( Fig. 28 a–d)........................................... 19

2 Dorsal hysterosomal lateral platelets present ( Fig. 26 a–d)..................................................... 3

- Dorsal hysterosomal lateral platelets absent (Fig. 27a–f)..................................................... 11

3 Palp telofemora with one or two apophyses ( Fig. 28 a–d)..................................................... 4

- Palp telofemora without an apophysis.............................................................. D. poppi

4 Palpal telofemora with 1 apophysis ( Fig. 28 a, b)............................................................ 5

- Palpal telofemora with 2 apophyses: 1 basal, flattened and disc-shaped, 1 apical, short, thick and bulbus ( Fig. 28 c).................................................................................................... D. condylus

5 Lateral platelets inconspicuous, length less than 2 times the length of c1 or c2; cosmopolitan ( Fig. 26 a).......... D. inermis

- Lateral platelets large, length greater than 2 times the length of c1 or c2 ( Fig. 26 b–d)................................ 6

6 Setae f1 and h1 equal in length; median shield present ( Fig. 26 b, c) or absent ( Fig. 26 d).............................. 7

- Setae f1 shorter than h1; median shield absent ( Fig. 26 d)...................................................... 9

7 Apophysis adjoining palpal genua and telofemora as long or longer than length of genu, blunt or pointed distally ( Fig. 24 b,c); median shield present ( Fig. 26 b, c)....................................................................... 8

- Apophysis adjoining palpal genua and telofemora shorter than length of genu, blunt distally ( Fig. 24 a); median shield absent ( Fig. 26 d)............................................................................. D. dolichosetosus

8 Apophysis adjoining palpal genua and telofemora pointed distally ( Fig. 24 b); palp tibiotarsi with 4 sts; median shield compli- mented with setae c1, d1; e1 on small platelets ( Fig. 26 b); leg basifemora IV with 1 sts.................. D. philippinensis

- Apophysis adjoining palpal genua and telofemora blunted distally ( Fig. 24 c); setae c1–e1 on median shield ( Fig. 26 c); palp tibi- otarsi with 5 sts; leg basifemora IV with 2 sts..................................... D. pseudophilippinensis sp. nov

9 Apophysis adjoining palpal genua and telofemora inconspicuous: circular, minute and hyaline ( Fig. 24 d).... D. hoffmannae

- Apophysis adjoining palpal genua and telofemora conspicuous: short, blunt apically ( Fig. 24 e)...................... 10

10 Genital setae g3 longest, 1.5–1.7 times the length of g2 and g4, more than 2 times the length of g1 ............... D. smileyi

- Genital setae g4 longest, 2 times the length of g1–3 .................................................... D. humuli

Figures

FIGURE 26. Examples in which the lateral platelets are present.