Torotrogla, Kethley. Representatives, 1970

Skoracki, Maciej, Spicer, Greg S. & Oconnor, Barry M., 2016, A systematiC review of the subfamily Syringophilinae (ACari: Syringophilidae) of the NearCtiC region. Part 1: quill mites assoCiated with passerines (Aves: Passeriformes), Zootaxa 4084 (4), pp. 451-494 : 485-486

Key to species of the genus Torotrogla (based on Bochkov et al. 2009, modified)

(females)

* species occurring in the North America.

1. Setae h1 1.1–1.3 times longer than f1 or both pairs subequal in length. Setae h2 2 or more times longer than h1 ........... 2

- Setae h1 more than 3 times longer than f1 and less than half length or subequal to h2 ............................... 15

2. Hysteronotal shields absent.............................................................................. 3

- Hysteronotal shields present............................................................................. 6

3. Setae l'R of trochanters III–IV not extending beyond respective genua............................................ 4

- Setae l'R of trochanters III–IV extending beyond respective genua........................... .. T. mima Kethley, 1970 *

4. Length of setae vi 60 –80. Setae ve reach level of setal bases c1. Anterior margin of pygidial shield widely rounded........ 5

- Length of setae vi 30–50. Setae ve not reach level of setal bases c1. Anterior margin of pygidial shield tapering................................................................................. T. cardueli Bochkov and Mironov, 1999

5. Protuberances of hypostomal apex short and wide. Stylophore 260 long. Peritremes with 12–14 chambers. Length ratio of setae vi and ve 1:2.2. Setae f1 1.5 times longer than h1 .................................. T. calacarius Skoracki, 2004

- Protuberances of hypostomal apex long and narrow. Stylophore 215 long. Peritremes with 8–9 chambers. Length ratio of setae vi and ve 1:1.5. Setae f1 and h1 subequal in length....................................... T. lusciniae Skoracki, 2004

6. Bases of setae d1 situated anterior to hysteronotal shields...................................................... 7

- Bases of setae d1 situated on hysteronotal shields............................................................ 9

7. Hypostomal protuberances finger-like. Length ratio of setae vi and ve 1:1.8.................................................................................................... T. lullulae Skoracki, Hromada and Kuczynski, 2001

- Hypostomal protuberances narrow. Length ratio of setae vi and ve 1:1.2–1.5...................................... 8

8. Propodonotal, hysteronotal, and pygidial shields apunctate. Length of setae d1 180–195, d2 180–195 and e2 190–200. Length ratio of setae vi: h1 1:1.5................................................. T. volgini Skoracki and Mironov, 2013

- Propodonotal, hysteronotal, and pygidial shields densely punctate. Length of setae d1 140–160, d2 135–145, e2 140–170. Length ratio of setae vi: h1 1:1.......................................... T. modularis Nattress and Skoracki, 2007

9. Setae l'R of trochanters III not extending beyond respective genua.............................................. 10

- Setae l'R of trochanters III extending beyond respective genua................................................. 13

10. Total body length less than 1,000........................................................................ 11

- Total body length 1,300–1,400............................... T. coccothraustes Bochkov, Flannery and Spicer, 2009 *

11. Hypostomal protuberances long and slender............................................................... 12

- Hypostomal protuberances short and wide............................................ .. T. rubeculi Skoracki, 2004

12. Length of setae si 230–240. Setae ve 1.2 times longer than distance between bases of setae ve and c1. Length ratio of pygidial shield and body length 1:6...................................... T. cyanocitta Bochkov, Flannery and Spicer, 2009 *

- Length of setae si 155–160. Setae ve subequal to distance between bases of setae ve and c1. Length ratio of pygidial shield and body length 1:8............................................. T. aphelocoma Bochkov, Flannery and Spicer, 2009 *

13. Protuberances of hypostomal apex blunt-ended. Setae l'R of trochanters IV not extending beyond respective genua..................................................................... T. cardinalis Bochkov, Flannery and Spicer, 2009 *

- Protuberances of hypostomal apex sharp-ended. Setae l'R of trochanters IV extending beyond respective genua.......... 14

14. Setae vi and ve subequal in length. Protuberances of hypostomal apex wide and short........ T. pycnonotus Skoracki, 2011 *

- Setae ve twice as long as vi. Protuberances of hypostomal apex slender and long.............................................................................................. .. T. merulae Skoracki, Dabert and Ehrnsberger, 2000 *

15. Setae h2 1.6–1.8 times longer than h1 .................................................................... 16

- Setae h1 and h2 subequal in length................................................. .. T. villosa ( Hancock, 1895) *

16. Hysteronotal shields present. Bases of setae d1 1.7 times closer to d2 than to e2 ................................................................................................... T. piranga Bochkov, Flannery and Spicer, 2009 *

- Hysteronotal shields absent. Bases of setae d1 situated equidistant between bases d2 and e2 .................................................................................................. T. gaudi Bochkov and Mironov, 1998