Systematic revision of the feather mite genus Protolichus Trouessart, 1884 (Astigmata, Pterolichidae) Author Mironov, Sergey V. Author Dabert, Jacek text Zootaxa 2010 2526 1 36 journal article 10.5281/zenodo.196425 e18a85f3-43a2-4c80-8a1f-698148f15a9b 1175-5326 196425 Key to Protolichus species 1 In females, setae e2 flattened and slightly widened, saber-shaped ( Fig. 2 A). In all forms of males, dorsal surface of opisthosomal lobes posterior to bases of setae h3 without any transverse crest or ledge ( Figs 5 , 9 A, 15A, B). In heteromorph males (ones with large crest-like ventral extension on tarsus I), opisthosomal lobes acute ( brachiatus group) .......................................................................................................................................................................... 2 - In females, setae e2 setiform ( Fig. 12 B). In all forms of males, opisthosomal lobes with transverse crest partly or completely crossing lobes posterior to base of setae h3 ( Figs. 15 C, D, 17G, H). In heteromorph males, posterior margin of opisthosomal lobes obliquely cut or truncate ( crassior group) .......................................................................... 5 2 In all form of males, setae e2 reaching or slightly extending beyond lobar apices; setae d and e of tarsus IV differently shaped: seta d spiculiform with clear basal ring, seta e modified into poorly sclerotized spine-like process without distinct basal ring ( Fig. 8 E). In heteromorph males, tarsus II with large rectangular extension on ventral margin, genu II with acute dorsal crest ( Figs 8 C, D). In females, setae si spiculiform (35–45 long), approximately equal in length to distance between their bases, setae ps1 shorter than half of idiosoma’s greatest width ( Fig. 11 B)................. ..................................................................................................................... P. magnificus Favette et Trouessart, 1904 - In all forms of males, setae e2 extending far beyond lobar apices by at least half their length; seta d and e of tarsus IV similar in structure, represented by spicules with distinct basal ring, or poorly sclerotized cones with basal inflation ( Figs 3 E, 6D). In heteromorph males, tarsus II without rectangular extension on ventral margin, genu II with rounded dorsal crest ( Figs 10 C, D) or without it ( Fig 3 C). In females, setae si setiform, much shorter than distance between their bases, setae ps1 longer than a half of idiosoma’s greatest width ( Figs 11 A, 12A, B) ........................... 3 3 In heteromorph male, genu II with rectangular antero-dorsal extension bearing solenidion σ 1 ( Figs 9 B, 10C, D), terminal cleft wide, about 1.5 times longer than width. In females, setae e1 posterior to level of cupules im ( Fig. 12 A). ........................................................................................................................................................ P. sigillator sp. n. 1* - In heteromorph male, genu II without any dorsal extension or with crest of another form; terminal cleft narrow, over 2 times longer than wide. In females, setae e1 at level of cupules im or anterior to it ............................................... 4 4 In all forms of males, setae e2 with filiform apical part, hysteronotal shield without any ornamentation, setae d, e of tarsus IV represented by spicules with distinct basal ring ( Fig. 3 E). In heteromorph male, ventral crest of tarsus I with almost rectangular proximal part ( Figs 3 A, B), subcapitulum crossed by strong bow-shaped fold and several fine transverse striae, posterior margin of subcapitulum slightly convex ( Fig. 3 F). In homeomorph male, width of terminal cleft over 10. In females, posterior end of hysteronotal shield uniformly punctate ( Fig. 2 A) ......................... ..................................................................................................................................... P. brachiatus Trouessart, 1884 - In all forms of males, setae e2 thick all the way to their tips, not filiform; posterior end of hysteronotal shield, usually at level of setae e2 with numerous poorly pronounced pits ( Figs 5 C, D); setae d, e of tarsus IV as poorly sclerotized cones with basal inflation ( Fig. 6 D). In heteromorph males, ventral crest of tarsus I with rounded proximal part ( Fig. 6 B), subcapitulum crossed by a single almost straight transverse wrinkle, posterior margin of subcapitulum strongly convex ( Fig. 6 G). In homeomorph males, width of terminal cleft about 5. In females, posterior end of hysteronotal shield with several pit-like lacunae ( Fig. 11 A) .......................... P. strangulatus Favette et Trouessart, 1904 5 In heteromorph male, tibia II with large claw-shaped apophysis on antaxial surface and with wide longitudinal dorsal crest; seta cG of genu II wide blade-like, strongly curved at base and directed parallel to segment ( Figs. 18 A, B). In homeomorph male, seta cG II narrowly lanceolate, not longer than segment ( Fig. 18 D). In females, length of scapular setae si (45–50) approximately equal to distance between their bases........... P. c a s u a r i n u s Trouessart, 1884 - In heteromorph male, tibia II with short tubercle-like ventral apophysis; seta cG of genu II setiform in general shape although strongly thickened especially in basal part ( Figs 14 C, D, 20C, D). In homeomorph male, seta cG II setiform, 1.5–2 times longer than segment. In female, length of scapular setae si (30–35) about 3/4 of distance between their bases..................................................................................................................................................................... 6 6 In heteromorph males, femur II without apico-dorsal apophyses, ventral apophysis of tibia II finely verrucous or smooth, setae cG II with almost filiform apex, smooth ( Figs 14 C, D), subcapitulum with bow-shaped transverse fold ( Fig. 14 F). In both forms of males, greatest width of terminal cleft equal or less than half-width of opisthosomal lobe. In females, width of terminal cleft (distance between setae ps1 ) about 32–38, posterior end of hysteronotal shield with pit-like lacunae ( Fig. 12 B) ............................................................................. P. c r a s s i o r Trouessart, 1884 - In heteromorph males, femur II with two dorso-apical spine-like apophyses, ventral apophysis of tibia II roughly verrucous; setae cG II thick, with verrucae in apical part ( Figs 20 C, D), subcapitulum with a pair of oblique crests in posterior angles ( Fig. 20 F). In both forms of males, greatest width of terminal cleft not less than width of opisthosomal lobe. In females, width of terminal cleft (distance between setae ps1 ) less than 30, posterior end of hysteronotal shield without pit-like lacunae ...................................................................... P. gratus Favette et Trouessart, 1904 1. Homeomorph male is unknown for this species.