ISLE OF WIGHT DISEASE IN HIVE BEES — ACARINE DISEASE. 211 



T. canestrini Massal., 1897. — Forms small rounded galls on several European 



grasses. 



T. phraginitidis Schlechtendal, 1897. — A species resembling T. canestrini, which 

 occurs as an inquiline in phragmitid galls. 



T. contuhernalis Renter, 1906.— An inquiline in galls upon Galium verum. 



T. latus Banks, 1904. — Causes galls on the main shoots of the mango plant. 



T. intectus Karpelles, 1885. — In barley; producing severe irritation on hands of 

 workers in the Danube region in Hungary and Russia. 



T. spififex Marchal, 1902. — On grasses; causes elongated swellings on oat. 

 Occurs in colonies. 



Described as doing Damage to Plants but not Apparently Associated 



WITH Galls. 



T. oryzce Targ., 1878. — Infests the ears of the rice plant. 



T. culmicolus Reuter, 1900. — From spikes of meadow grass; produces "silver 

 top " in grasses in Finland, where it is found in the leaf sheaf above the upper- 

 most node. 



T. anascB Tryon. — Described as causing injury to pine apples in Australia. 



T. frag aria Zimmerm., 1904. — Has been found on strawberries. 



T. graminis Kramer, 1886. — So named by Kramer because it occurs in abnormally 

 rolled-up grass leaves. 



T. bancrofti Michael. — Has been described as causing damage to sugar-cane in 

 Queensland and in Barbados. 



Described from Animals. 



T. floricolus. — Already quoted above as occurring in the bases of birds' feathers. 



T. soricola Oudms., 1903. — Found on Sorex vulgaris. 



Regarding the placing of these species here, it may be mentioned that Otjdemans 

 is of opinion that when forms occur on animals these are probably no more than 

 transporting agents. 



■T. hominis Dahl, 1910. — From human ovary in carcinoma and fibroma, and 

 ■ from bladder in cystitis (Blanc and Rollet, 1910). 



T. sauli Dahl, 1910 {T. equi ; T. muris ; T. canis). — From tumours in mammals. 



T. woodi, n. sp., Rennie, 1920. — In thoracic tracheae oi Apis mellijica. 



In this connection reference should also be made to a form described by Myake 

 and Scriba (1893) from the urine of the human subject as Nephrophages sanguinarius. 

 According to Oudemans this form is a Tarsonemus. It is tracheate, blind, has 

 needle-formed manibles, and the pear-shaped pseudostigmatic organ has been mis- 

 taken for eyes. According to him the mouth parts are not described or figured 

 correctly. 



The group of species which have been obtained from mammalian tissues presents 



