Liacarus 



II 



2. L. globifer (P. Kram.) 1897 Leiosoma g. t P. Kramer in: BibLzool., i\20 p. 80. 



Ira. Light coffee-brown ; polished. Cephth. long. Rost. rounded. Lam. 

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

 forward between them as in L. niteus. 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 u. 



Greenland. 



3. L. globosus (Berl.) Oribates subterranetts, C. L. Koch, C. M. A., 

 fasc. 38 t. 11 ; ?1844 0. globosus, G. L. Koch, C. M. A., fasc. 38 1. 12 j 1885 Leiosoma 

 globosum, Herlese, 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 

 w 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 (Berlese'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., Xicolet in: Arch. Mus. Paris, v. 7 

 p. 444 t. ti f. 6. 



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

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

 „Heraldic shield-shaped", 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: Kev. biol. Nord 

 Trance, 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 of ca. 160 — 170 |u round post, margin. L. ca. 

 700 u. 



In ants' nests. New Zealand. 



6. L. marginatus (Nic.) 1855 Leiosoma marginata, Xicolet in: Arch. Mus. 

 Paris, v. 7 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. Bare. 



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

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

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



