Liacarus 41 



2. L. globifer (P. Kram.) 1897 Leiosoma g., P. Kramer in: Bibl. zool., .20 p. 80. 



Im. Light coffee-brown ; polished. Cephth. long. Host, rounded. Lam. 

 short, almost meeting at their ant. ends; a short unpaired spine directed 

 forward between them as in L. nitens. Psstg. org. short, with thin 

 peduncles and globular head. C. lam. longish, hearing a Lam. hair, 

 which reaches beyond tip of Rost. Tectp. 1 large and scoop-shaped. L. 450 ju. 



Greenland. 



3. L. globosus (Berl.) r'1844 Oribates subterraneus, C. L. Koch, C. M. A., 

 fasc. 38 t. 11 ! ?1844 0. globosus, C.L.Koch, C. M. A., fasc. 38 t. 12 j 1885 Leiosoma 

 globosum, Berlese, A. M. S., fasc. 20 nr. 4. 



Im. Black or black-brown, highly polished. Lam. blades on edge, 

 widest anteriorly, not distinctly separated from Trlam., which is also a blade 

 on edge. C. lam. short, broad, much truncated. Psstg. org. fusiform with 

 a terminal distal hair but no peduncle. Tectp. 1 with long terminal hair 

 similar to and close to Lam. hair. Abd. globular; 4 minute hairs on post, 

 margin ; Dors, of Abd. hairless. L. 1,02 mm (Beiiese's description). 



It is not possible to say for certain from Koch's description and plate whether his 

 2 species (which are one only) are really the same as Berlese's, the present writer in- 

 clines to think them different and belonging to the genus Notaspis, but Berlese thinks 

 them identical. 



In moss. Germany, Italy. 



4. L. lativentris (Nic.) 1855 Leiosoma I. , Nicolet in: Arch. Mus. Paris, v. 7 

 p. 444 t. 6 f. t>. 



Im. Cephth. and legs dull red -brown, Abd. black, polished. Like 

 L. globosus, but outline of Abd. instead of being circular is 

 ,,Heraldic shield-shape d", i. e. .truncated and slightly sinuated ante- 

 riorly, centre slightly advancing and convex; lateral parts slightly concave. 

 Abd. somewhat pointed posteriorly, as broad as long. L. 1,05 mm. 



France. 



5. L. longipilis (Monz.) 1894 Leiosoma I, R. Moniez in: Rev. biol. Nord 

 France, v. 6 p. 201. 



Im. Pitch-black, polished. Psstg. org. clavate, finely serrated. 

 Intlam. hair ca. 225 |u. Abd. hemispherical, truncated anteriorly. About 

 5 long radiating hairs ofca. 160 170 |u round post, margin. L. ca. 

 700 n. 



In ants' nests. New Zealand. 



6. L. marginatus (Me.) 1855 Leiosoma marginata, Nicolet in: Arch. 3Ius. 

 Paris, v. 1 p. 442 t. 6 f. 3. 



Im. Red -brown, polished. Lam. blades on edge, widest anteriorly. 

 Lam. hair long; no Trlam. Psstg. org. as long as Cephth., setiform, 

 slightly recurved. Abd. elongated, truncated and slightly sinuated anteriorly 

 almost pointed posteriorly, hairless, but with a longitudinal suture on 

 each side of dors, surface forming a lat. border. L. 880 |u. 



Under stones. France. Rare. 



7. L. nitens (Gerv.) 1844 Oribata n., Gervais in: Walckenaer, Ins. Apt., v. 3 

 p. 259 t. 35 f. 7 | 1855 Leiosoma n., Nicolet in: Arch. Mus. Paris, v. 7 p. 441 t. 6 f . 4 | 

 1885 L. n., Berlese, A. M. S.. fasc. 20 nr. 2. 



