Rodhainyssus Fain, 1956

Bochkov, Andre V., Zabludovskaya, Svetlana & Oconnor, Barry M., 2008, Phylogeny and systematics of the endoparasitic astigmatid mites (Acari: Sarcoptiformes) of mammals: families Gastronyssidae, Lemurnyssidae, and Pneumocoptidae, Zootaxa 1951 (1), pp. 1-152 : 64-65

Key to the genus Rodhainyssus Fain, 1956

Females

(The female of R. emballonurae Fain, 1967 is unknown)

1. Distal ends of apodemes II connected with posterior apodemes of coxae II by sclerotized bands. Posterior apodemes of coxae II fused with epigynum by their distal ends. Apodemes III with free distal ends ........................................ 2

– Distal ends of apodemes II not connected with posterior apodemes of coxae II. Posterior apodemes of coxae II with free distal ends. Apodemes III fused with epigynum by their distal ends ................................................................ 10

2. Setae 4b situated distinctly posterior to epigynum ...................................................................................................... 3

– Setae 4b situated on epigynum ..................................................................................................................................... 9

3. Ventral projections of subcapitulum distinct. Posterior lobes of coxal fields I present. Trochanters III–IV each with ventral fold or crest ..................................................................................................................................................... 4

– Ventral projections of subcapitulum rudimentary. Posterior lobes of coxal fields I absent. Trochanters III–IV without ventral folds or crests ..................................................................................... R. taphozous Fain, 1967 ( Figs. 26A, B )

4. Punctate areas between setae h2 and h3 present .......................................................................................................... 5

– Punctate areas between setae h2 and h3 absent ................................................... R. yunkeri Fain, 1956 ( Fig. 16A, B )

5. Setae si present ............................................................................................................................................................. 6

– Setae si absent ..................................................................................................... R. nycteris Fain, 1967 ( Fig. 17A, B )

6. Sternal apex free. Setae c2 present. Setae f2 absent ..................................................................................................... 7

– Sternal apex connected with apodemes II by sclerotized transverse bands. Setae c2 absent. Setae f2 present ............. .................................................................................................................................. R. myotis Fain, 1967 ( Fig. 21A–D )

7. Trochanters III and IV with distinct transverse crest ventrally. Setae vF I–II and mG I–II <70 .................................. 8

– Trochanters III and IV with square bracket-like ventral fold. Setae vF I–II and mG I–II> 70 ....................................... ............................................................................................................................ R. longipilis Fain, 1959 ( Figs. 18 , 19 )

8. Body>350 long. Setal lengths: vF I–II ~55, mG I–II ~30, d I–IV 30–35. Trochanters III and IV each with ventral crest as in Fig. 23A ....................................................................... R. surinamensis Fain et Lukoschus, 1972 ( Fig. 23A–D )

– Body <260 long. Setal lengths: vF I–II ~27, mG I–II 13–22, d I–IV ~15. Trochanters III and IV each with ventral crest as in Fig. 24C .................................................................................................. R. miniopteri Fain, 1967 ( Fig. 24A–C )

9. Posterior projections of gnathosoma almost triangular in outline ( Fig. 25B ) ................................................................ ............................................................................................................................. R. eptesicus Fain, 1967 ( Fig. 25A–F )

– Posterior projections of gnathosoma widely rounded (their length and width subequal, Fig. 25G ) ............................. .......................................................................................................................... R. nyctophili Fain, 1967 ( Fig. 25G–L )

10. Posterior projections of gnathosoma widely rounded ( Fig. 28 ). Setae si absent ........ R. balantiopteryx ( Fig. 28A–D )

– Posterior projections of gnathosoma sword-like ( Fig. 29 ). Setae si present .................................................................. ............................................................................................................................ R. saccopteryx sp. nov. ( Fig. 29A–C )

Males

(Males of R. nyctophili Fain, 1967 and R. eptesicus Fain, 1967 are unknown)

1. Distal ends of apodemes II connected with posterior apodemes of coxae II by sclerotized bands. Apodemes III with free distal ends ............................................................................................................................................................ 2

– Distal ends of apodemes II not connected with posterior apodemes of coxae II. Apodemes III fused to each other. 8

2. Ventral projections of subcapitulum distinct. Posterior lobes of coxal fields I present. Trochanters III–IV each with ventral fold or crest ..................................................................................................................................................... 3

– Ventral projections of subcapitulum rudimentary. Posterior lobes of coxal fields I absent. Trochanters III–IV without ventral folds or crests .......................................................................................... R. taphozous Fain, 1967 ( Figs. 26C )

3. Sternal apex free ........................................................................................................................................................... 4

– Sternal apex connected with apodemes II by sclerotized transverse band ................................................................... 7

4. Setae c2 present. Setae f2 absent ................................................................................................................................. 5

– Setae c2 absent. Setae f2 present ............................................................................ R. myotis Fain, 1967 ( Fig. 21F, G )

5. Setae ps2 absent. Setal lengths: vF I–II up to 60, mG I–II up to 45, d I–IV up to 50 .................................................... 6

– Setae ps2 present. Setal lengths: vF I–II ~90, mG I –II ~80, d I–IV 80–90 ............... R. longipilis Fain, 1959 ( Fig. 20 )

6. Body 216 long. Apodemes IV fused with pregenital apodeme. Setal lengths: vF I–II ~27, mG I–II 13–22, d I–IV 15– 20 .......................................................................................................................... R. miniopteri Fain, 1967 ( Fig. 24D )

– Body 279–290 long. Apodemes IV not fused with pregenital apodeme. Setal lengths: vF I–II ~60, mG I–II ~45, d I–IV 30–50 R. surinamensis Fain and Lukoschus, 1972 ( Fig. 23E–H )

7. Setae si and c2 present. Punctate areas between setae h2 and h3 absent ............. R. yunkeri Fain, 1956 ( Fig. 16C, D )

– Setae si and c2 absent. Punctate area between setae h2 and h3 present ..................... R. nycteris Fain, 1967 ( Fig. 17 )

8. Setae si present. Setae f2 absent. Median opisthogastric plate present ........................................................................ 9

– Setae si absent. Setae f2 present. Median opisthogastric plate absent ............. R. balantiopteryx Fain, 1967 ( Fig. 28 )

9. Posterior projections of gnathosoma sword-like. Ventral folds of trochanters I and II absent. Posterior end of the aedeagus situated distinctly posterior to level of setae g. Median opisthogastric plate arched, bearing setae h3 and ps3 ..................................................................................................................... R. saccopteryx sp. nov. ( Fig. 29D, E )

– Posterior projections of gnathosoma widely rounded ( Fig. 27B ). Ventral folds of trochanters I and II present. Posterior end of aedeagus situated at level of setae g. Median opisthogastric plate with irregular margins, close to ovoid, bearing only setae ps3 ....................................................................................... R. emballonurae Fain, 1967 ( Fig. 27 )

Figures

FIGURE 16. Rodhainyssus yunkeri Fain, 1956, female (A, B). A, ventral view; B, postero-ventral projections of gnathosoma. Male (C, D). D, ventral view; D, aedeagus. Scale bars: 100 µm (A, C), 50 µm (B, D).

FIGURE 17. Rodhainyssus nycteris Fain, 1967, female (A, B). A, ventral view; B, postero-ventral projections of gnathosoma. Male (C, D). C, ventral view; D, aedeagus. Scale bars: 100 µm (A, C), 50 µm (B, D).

FIGURE 18. Rodhainyssus longipilis Fain, 1959, female. A, dorsal view; B, ventral view.

FIGURE 19. Rodhainyssus longipilis Fain, 1959, female legs. A, tarsus I in dorsal view; B, same in ventral view; C, leg I in ventral view; D, leg II in ventral view; E, leg III in ventral view; F, tarsus III in dorsal view; G, same in ventral view; H, leg IV in ventral view. Scale bars: 100 µm (C–E, H), 25 µm (A, B, F, G).

FIGURE 20. Rodhainyssus longipilis Fain, 1959, male. A, dorsal view; B, aedeagus. Scale bars: 100 µm (A), 50 µm (B).

FIGURE 21. Rodhainyssus myotis Fain, 1967, female (A–D). A, ventral view; B, postero-ventral projections of gnathosoma; C, tarsus I in dorsal view; D, same in ventral view; E, trochanter III in ventral view. Male (F, G). F, ventral view; G, aedeagus. Scale bars: 100 µm (A, F), 50 µm (B–E, G).

FIGURE 23. Rodhainyssus surinamensis Fain et Lukoschus, 1972, female (A–D). A, ventral view; B, postero-ventral projections of gnathosoma; C, chelicera in lateral view; D, tarsus I in ventral view. Male (E–H). E, in ventral view; F, aedeagus; G, tarsus I in dorsal view; H, same in ventral view. Scale bars: 100 µm (A, E), 50 µm (B–D, F–H).

FIGURE 24. Rodhainyssus miniopteri Fain, 1967, female (A–C). A, ventral view; B, postero-ventral projections of gnathosoma; C, trochanter III in ventral view. Male, D, ventral view. Scale bars: 100 µm (A, D), 50 µm (B, C).

FIGURE 25. Females of Rodhainyssus spp. Rodhainyssus eptesicus Fain, 1967 (A–F). A, ventral view; B, postero-ventral projections of gnathosoma; C, tarsus I in dorsal view; D, tibia and tarsus I in ventral view; E, tarsus IV in ventral view; F, seta g. Rodhainyssus nyctophili Fain, 1967 (G–L). G, ventral view; H, postero-ventral projections of gnathosoma; K, tarsus I in dorsal view; J, tibia and tarsus I in ventral view; I, trochanter III in ventral view; L, seta g. Scale bars: 100 µm (A, G), 50 µm (B–F, H–L).

FIGURE 26. Rodhainyssus taphozous Fain, 1967, female (A, B). A, ventral view; B, postero-ventral projections of gnathosoma. Male, C, ventral view. Scale bars: 100 µm (A, C), 50 µm (B).

FIGURE 27. Rodhainyssus emballonurae Fain, 1967, male. A, ventral view; B, subcapitulum in ventral view; C, aedeagus. Scale bars: 100 µm (A), 50 µm (B, C).

FIGURE 28. Rodhainyssus balantiopteryx Fain, 1967, female (A–D). A, ventral view; B, postero-ventral projections of gnathosoma; C, tarsus I in ventral view; D, trochanter III in ventral view. Male (E–G). E, ventral view; F, aedeagus; G, tarsus I in ventral view. Scale bars: 100 µm (A, E), 50 µm (B–D, F, G).

FIGURE 29. Rodhainyssus saccopteryx Bochkov et OConnor, sp. nov., female (A–C). A, ventral view; B, postero-ventral projections of gnathosoma; C, trochanter III in ventral view. Male (D, E). D, ventral view; E, aedeagus. Scale bars: 100 µm (A, D), 50 µm (B, C, E).