Oribata 



15 



more than half across sternal plate. Abd. broad mucb arched, ant. margin 

 of Abd. strongly sinuated. Post, margin very round; genital and anal covers 

 far apart, former much the smaller. — Nph. Orange-red or dark pink, 

 diamond-shaped. Cephth. not above '/-, of entire length, a constriction in 

 front of Psstg. Psstg. org. globular heads on short peduncles. Abd. flat 

 and diamond-shaped when young, more convex and rounded lateral. 2 dark- 

 red spots on ant. margin of Abd. with whitish space between; spots joined 

 by a red line ; a band of about 6 black clavate hairs a little behind red 

 line; hinder part of Dors, of Abd. mostly covered by a flask-shaped patch 

 darker and thicker than rest of Dors, of Abd. and strongly dotted, broader 

 part forward. Crimson expulsory vesicles at sides of patch. — Im. L. 

 ca. 800 fa- 

 in moss and on bark of trees. Algeria, England, France, Germany, Netherlands. 



10. O. lucens L.Koch 1879 O.I., L.Koch in: Svenska Ak. Handl., 0.16 nr. 5 

 p. 115 t. 4 f. 2 | ?1879 Oppia oblonga, L.Koch, ibid., p. 118 t. 4 f. 6 j M879 Claviceps 

 bimaculatus, L. Koch, ibid., p. 135 t. 7 f. 9. (Nph.) 



Im. Black, very like 0. lapidaria but Dors, of Abd. said to be strewn 

 with short, fine white hairs distant from each other about their own length; 

 and not quite so wide as 0. lapidaria. L. 600 |u — ? 1 mm. 



Siberia (Yeniseisk), Novaya Zemlya. 



11. O. mieroptera Can. 1896 0. »»., Canestrini in: Bull. Soc. Veneto-Trent., 

 v. 6 nr. 2 p. 90 | 1897 O.m., Canestrini in : Atti Soc. Veneto-Trent, ser. 2 0.3 p. 149 t. 4. 



Im. Dark-brown, legs and Ptm. yellowish. Very like 0. globula, but 

 Abd. not truncated posteriorly. Psstg. org. more clavate with pointed distal 

 end. Ptm. small, narrow, confined to ant. part of Abd. Ung. trid. L. ca. 1 mm. 



Bolivia. 



12. O. mollicoma C.L.Koch 1840 Oribates mollicomus, C.L.Koch, C. M. A., 

 fasc. 30 t, 20 j 1884 Oribatam., Michael; Brit. Orib., v. 1 p. 227 t. 4 f. 1— 9. 



Im. Black, legs and a patch on Dors, of Abd. red-brown. Dull but 

 not areolated. Rost. blunt; Dorso-vertex little narrowed anteriorly, Lam. 

 narrow blades on edge, nearly as long as Rost. Trlam. a line, far 

 forward. C. lam. pointed, turned down, bearing hair. Psstg. org. long with 

 filiform peduncles and discoidal head. Intlam. hair very long. Legs short. 

 2 front Femora with large blades. Abd. a long oval; Ptm. running far back; 

 4 rows of very long flexible hairs on Dors, of Abd. — Nph. olive- 

 brown, polished. Rost. rounded. Cephth. behind Rost. much widened, bearing 

 2 small ridges. Psstg. dorsal, Psstg. org. long with filiform peduncles and 

 fusiform head. Legs short; pairs 3 and 4 almost hidden by Abd., which 

 is short wide and shield-shaped. — Im. L. ca. 500 u. 



In moss. England, Germany, Sweden. 



13. O. orbicularis C. L. Koch 1835 Oribates o., C. L. Koch, C. M. A., i'asc. 3 

 t. 6 | 1855 Oribata o., Nicolet in: Arch. Mus. Paris, ». 7 p. 435 t, 5 f . 2 | 1877 Oribates o., 

 Canestrini & Fanzago in: Atti 1st. Veneto, ser. 5 v. A p. 82 | 1883 O.o., Berlese, A. M.S., 

 fasc. 9 nr. 1 | 1884 Oribata o., Michael, Brit. Orib., v. 1 p. 236 t. 6 f. 1,3— 9. 



Im. Dark red-brown, a vague lighter patch near ant. margin of Abd. 

 finely punctured. Rost. blunt, genae show as points rather longer than frons. 

 2 pairs of Rost. hairs. Cephth. long. Lam. large blades nearly on edge, wider 

 anteriorly than posteriorly. C. lam. short, broad, truncated; Lam. hair in 

 middle of truncated edge; corner of C. lam. outside hair rounded. 



