COLEOPTERA CARABIDAE OF THE JUAN FERNANDEZ ISLANDS 63I 



process is glabrous, the metepisterna much longer than wide. The venter is 

 glabrous, the cT without basal fovea, the apical segment with one marginal seta 

 on each side in the J*, two setae in the $. The metafemora have two setae 

 on the hind margin; the tarsi are glabrous above, the pro- and mesotarsi ^ 

 with four dilated joints, clothed beneath with rather large irregular whitish 

 scales, joint 4 bilobed or deeply emarginate. In 7'. pallipes the microsculpture 

 of the elytra consists of very wide, meshes, while on the head and prothorax 

 it is barely visible; the tooth of the mentum is sharp; tarsal joint 5 has on 

 the underside a pair of small setae near apex. 



The genus appears to be related to the Chinese Lioholus Tchitch., which- 

 is unknown to me in nature 



6. Trachysarus scriceus sp. n. (vide p. 632). 



7. Trachysarus punctiger sp. n. (vide p. 633). 



8. Antarctia euryptera Putzeys, Essai sur les Antarctia (Dejean), Mem. 

 Liege (2). V. 1873, p. 25; Reed, Proc. Zool. See. Lond. 1874, p. 59. 



Masafiiera, 6 ex. c^$. The species seems to be confined to this island. 

 The specimens agree fairly with the description, but the elytral striae, 

 said to be impunctate, are actually very finely crenulate. 



9. Pterostichus walkeri sp. n. (see p. 634). 



10. Pterostichus selkirki sp. n. (see p. 635). 



11. Pterostichus skottsbergi sp. n. (see p. 636). 



These three new species have all the main characters distinguishing the 

 Pterostichini,, that is to say the mesocoxal cavities are entirely closed by the 

 sterna, the mandibular scrobe has no seta, the elytra have an inner plica and 

 are not truncate at apex, the head has on each side two supraorbital setae, 

 the labial palpi are bisetose, the tooth of the mentum is bifid, and the pro- 

 sternal declivity rounded. All three species, however, present unusual characters, 

 and none would be included under Pterostichus sens. sir. in the palaearctic 

 series. The Carabidae of South America are so imperfectly known at present 

 that I hesitate to propose a new genus or new genera, and think it better to 

 await a more intensive study of the fauna in future years. 



12. Pristonychus coniplanatus Dejean Spec. Gen. III. 1828, p. 58. 

 Pristonychus chilensis Gory Ann. Soc. Ent. France, 1833, p. 232; SoLIER in 

 Gay's Historia de Chile, Zool. IV. 1849, p. 228; Reed, Proc. Zool. Soc. Lond. 

 1874, pp. 50 and 57. 



Masatierra, Puerto Frances, 20 ex., 20. VIII. 1917; Masafuera, 6 ex., 

 under stones, 24. II. 1917. 



This common species, which also appears in our catalogues under several 

 other names, was originally described from the circum-mediterranean littoral. 

 It has been carried by ships to nearly all parts of the world, and may now 

 be regarded as almost cosmopolitan. 



