506 R. 1. POCOCK 



Genus POLYXENUS, Latb. 

 1. I*olyxeiiu« lix^^iirixs (Linn.) 



Genoa. 



Mr. Thomas brought back no exam})les of this species from 

 Liguria, but he tells me that he recollects seeing it under the 

 bark of the wooden props supporting the vines at Borzoli, near 

 Genoa. 



According to Berlese (Acari Myriopoda, etc. pt. LVI), it occurs 

 throughout Italy in trees and damp places. This author states 

 that it attains a size of 8 mm.! Presumably this figure is a 

 misprint for 3. 



2. I*olyxenixs alTbu», sp. n. 



Allied to P. lagnrus, Linn. 



Colour: integument and hairs white. Head as in P. lagurus, 

 antennae of about the same length and form as in this species; 

 with a distinct cluster of glassy-bead-like eyes on each side. 



The hairs on the dorsal surface arranged as in P. lagurus, 

 but those running along the posterior margin of the tergites 

 apparently considerably longer, for when lying backwards they 

 extend beyond the middle of the succeeding tergite. 



Length 3 mm. 



Locality: Genoa. On the low clitt's facing the sea just to the 

 east of the town. 



Mr. Thomas, who is familiar with the appearance of P. lagurus 

 when alive, informs me that this new species immediately struck 

 him as peculiar on account of its pallid colouring. 



Genus LOPHOPBOCTUS, nov. 

 3. Loplxoproctixs coecixs, sp. n. 



Pale yellow like Polyxenus albus. . 



Head without eyes. Anlennae very long, their length almost 



