Rodhainyssus surinamensis Fain et Lukoschus, 1972

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 : 53-55

5. Rodhainyssus surinamensis Fain et Lukoschus, 1972

( Fig. 23 )

Rodhainyssus surinamensis Fain & Lukoschus 1972: 85 , figs. 63–66.

Redescription. FEMALE (paratype). Body, including gnathosoma, 350 long, 140 wide. Ventral projections of subcapitulum tongue-like, 9 long, 9 wide. Propodonotal shield length 45, maximum width 55. Dorsal and ventral surface of hysterosoma finely and regularly striated. Setae si, c2 and f2 present. Distance se–se 63. Punctate areas between setae h2 and h3 present. Sternum 25 long, its posterior end not connected with apodemes II. Posterior projections of coxal fields I tongue-like, 14 long, 13 wide. Distal ends of apodemes II connected with posterior apodemes of coxal fields II by sclerotized band. Posterior apodemes of coxal fields II distinctly developed, fused with epigynum. Apodemes III not fused with epigynum. Epigynum 3 long, 9 wide. Setae 4b situated posterior to epigynum. Apodemes IV connected with sclerotized fields of oviporus by narrow and weakly sclerotized interrupted bands. Inseminatory canal 18 long, opening terminal. Legs III–IV subequal in length, 115 and 125 long, respectively. Trochanters I–II without ventral folds; trochanters III–IV with distinct transverse “sinusoidal”–shaped crests ventrally. Setal lengths: se 9, h2 245, 1a 8, 3a 18, vF I–II about 55, cG I– II about 7–8, mG I–II about 30, d I–II about 30, d III–IV about 35.

MALE (paratype). Body, including gnathosoma, 290 long, 110 wide. Ventral projections of subcapitulum tongue-like, 8 long, 7 wide. Propodonotal shield length 52, maximum width 55. Dorsal and ventral surface of hysterosoma finely and regularly striated. Setae si, c2, and f2 present, setae ps2 absent. Distance se–se 57. Punctate areas between setae h2 and h3 present. Sternum 27 long, its posterior end not connected with apodemes II. Posterior projections of coxal fields I tongue-like, 13 long, 11 wide. Distal ends of apodemes II distinctly developed, connected with posterior apodemes of coxal fields II by sclerotized band. Posterior apodemes of coxal fields II distinctly developed, their distal ends closely situated to each other but not fused. Apodemes III and IV free. Pregenital apodeme 3 long, 27 wide, with posterior median projection. Setae 4b situated on pregenital apodeme. Aedeagus 45 long. Legs III–IV subequal in length, 105 and 120 long, respectively. Trochanters I–II without ventral folds; trochanters III–IV with distinct transverse crests ventrally. Setal lengths: se 10, h2 170, 1a 6, 3a 9, vF I–II about 60, cG I–II about 7, mG I–II about 45, d I–II about 30, d III–IV about 50.

Type material examined. One female and 1 male paratypes ( IRSNB) from Eptesicus “ melanopterus ” ( Vespertilionidae ) [see remarks], SURINAME: Commewijne, Welgedacht estate, 05°48'N, 54°59'W, 31 July 1971, coll. F.S. Lukoschus.

Type deposition. Holotype is deposited in RMNH.

Host range and distribution. This species is known from the type host only, E. sp. ( fuscus or brasiliensis ) from Suriname ( Fain & Lukoschus 1972).

Remarks. The host species of R. surinamensis , Eptesicus “ melanopterus ” was listed by Fain and Lukoschus (1972) without an author. This species name, however, is not in current use. There are two homonymous epithets “ melanopterus ” both of which are currently considered as junior synonyms of other Eptesicus species , Eptesicus melanopterus Rehn = junior synonym of E. fuscus (Beauvois) and Eptesicus melanopterus Jentink = junior synonym of E. brasiliensis (Desmarest) . Since both of these species occur in Suriname, it is impossible to know which Eptesicus species is the type host for R. surinamensis .

Figures

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).