A SYNOPSIS OF AUSTRALIAN ACARINA — RAINBOW. 173 



L^ELAPS STILOSUS, Cane.st. 



L(daps stilosus, Canest., Atti. 1st. Venet., (6), ii., 1<S85, p. 711, 

 pi. ix., f. 3. 



Host. — Beetles — type found upon a Longicorn. 

 Hub. — Australia. 



Genus Seius, Koch. 



Species of this genus have been recorded as occurring upon 

 moss, and in caves ; and protonymphs upon plants. Only one 

 species has, so far, been described from Australia. 



Seius acanthurus, Canest. 



Seuis acanthurus, Canest., Atti. 1st. Venet., (6), ii., 1885, p. 712, 

 pi. ix., f. 1 and 2. 



Hah. — Australia. 



Genus Gamasus, Latr. 



Gam ASUS flavolimbatus, L. Koch. 



Gamasns flavolimbatus, L. Koch, Verhandl. K. zool. hot. Ges. 

 Wien, 1867, p. 242. 



Hah. — Queensland. 



Genus Berlesia, Canest. 



Berlesia rapax, Canest. 



Berlesia rapax, Canest., Atti. 1st. Venet., (6), ii., 1885, p. 714, 

 pi. ix., f. 4. 



Hab. — Australia. 



Family DERMANYSSID^. 



The mites included in this family are soft-skinned, and parasitic 

 on warm-blooded animals. Banks considers that whilst these 

 Acarids differ much in general appearance from the Gamasida?, to 

 which they are closely allied by structure, it would nevertheless 

 be better to abandon the group. The best character for separa- 



