50 Notaspis 



Ung. very large, minute scale -like irregular projections on each side of 

 ung. Abd. an ellipse, slightly truncated posteriorly and bearing 2 pairs of 

 hairs there, otherwise Dors, of Abd. without hairs or markings except a pale 

 patch near ant. margin. Nph. Dirty white or pale drab, legs and Host, 

 pinkish, leathery. Usually no Psstg. Psstg. org., Lam. hair or Intlam. hair 

 visible, but very minute ones do exist at some times of year. Dors, of Abd. 

 covered with broad, irregular, transverse wrinkles, each bearing a line of 

 knobs. Round post, margin are 6 flexible black hairs as long as body and 

 4 spikes. - - Im. L. ca. 500 |u. 



Oudeman's (1896, in: Tijdschr. Ent., v. 39 p. 175) indentifies this species with 

 Acarus confervae Schrank (1781, Ins. Austr.. nr. 1054), but does not give any reason 

 for doing so, except habitat. It would not apparently be possible to say from Schrank's 

 description, which of the many Acari inhabiting confervae he referred to. 



Aquatic in fresh water. England. 



20. N. lanceolata Michael 1885 N. L, Michael in: J. R. micr. Soc., ser. 2 v.5 

 p. 394 t. 7 f. 8 1888 N. L, Michael, Brit. Orib., v. 2 p. 398 t. 32 f. 12 | 1896 Dame- 

 osoma lanceolatum, Berlese, A. M. S., Crypt. II p. 54. 



Im. Light yellow-brown, polished, almost fusiform. Lam. short 

 ridges starting from Psstg. and running inward and forward until 

 their ends meet only a short distance from ant. margin of Abd. 

 Psstg. org. long, with slender peduncle and fusiform head terminated by 

 a bristle. L. ca. 330 |u. 



In moss. England. 



21. N. longilamellata Michael 1885 N.I., Michael in: J. R, micr. Soc.. ser. 2 

 0.5 p. 391 t. 7 f.4 ' 1888 N.L, Michael, Brit. Orib., v.2 p. 392 t, 28 f. 13 IB |' 1896 

 Dameosoma longilamellatum, Berlese, A. M. S., Crypt. II p. 54. 



Im. Light yellow-brown, polished; long pyriform. Cephth. very 

 long, ca. 5 / 12 of whole length. Lam. thick ridges, reaching more 

 than half length of Rost. post, part converging, ant. part parallel. No 

 C. lam. nor Trlam. Psstg. org with long filiform peduncle and short fusi- 

 form head. 2 small curved ridges between proximal ends of Lam. Abd. 

 truncated anteriorly, rounded posteriorly. 2 rows of longish hairs on Dors, 

 of Abd. and a row round margin. L. ca. 330 M. 



Algeria. England. 



22. N. monilipes Michael 1882 N. m., Michael in: J.R. micr. Soc., ser. 2 ;.2 p. 16 

 t, 2 f. 15 1 1888 N. m., Michael, Brit. Orib., v. 2 p. 381 t.31 f. 15 1 1896 Cymbaeremaeus 

 m., Berlese, A. M. S., Crypt. II p. 37. 



Im. Brown, shade variable, rough, leathery, covers itself with dirt. 

 Cephth. and Abd. very sharply divided. Cephth. in 3 regions, vizt. a smooth 

 anterior, a reticulated middle part between Tectp. 1 and a posterior roll with 

 raised dots. Lam. and Tectp. 1, which are dorsal rough straight bars. 

 C. lam. long, rough, curving downward; Psstg. org. long, clavate, 

 rough. Legs shortish, femora rough. Tibiae of legs 1 and 2, especially 1, 

 disproportionately large, with almost globular heads on short 

 thin peduncles, an apophysis from upper part of globe supports tactile 

 hair. Abd. shield-shaped. Antero-lateral angles produced forming points. 

 3 elevated lumps of which the second is the largest, occupy the whole median 

 part of Dors, of Abd., lateral border, flat ; whole dors, surface covered with 



