274 ARACHNOIDEA, 



CASE feathered hairs or the other essential and very distinctive characters 



XIV. 



of that genus. Gervais no doubt supposed that these must merely 

 have escaped Turpin's notice ; but Professor Robin has authori- 

 tatively settled all dispute about it. He says, " The Acarus 

 horridus of Turpin is only a female of Tyroglyphus longior, Gerv., 

 badly described, and imperfectly figured from want of sufficiently 

 precise taxinomic notions upon these articulates. The tarsus, for 

 instance, is represented and described as composed of two articles, 

 because on account of its length, the little support that is pro- 

 vided for one of the hairs starting about its middle has been 

 divided in two by the draughtsman." 



Mr.Weekes believed that he had made a similar discovery, and 

 his mite has been figured too, but still more unsatisfactorily. We 

 give a copy of it also. 



Tyroglyphus siculus {Ftun. Si Rob., Journ, Anat. Phys,, 1867), 



Tyroglyphus siculus. Copied from Fumouze and Robin's figure. 



The only remaining European species of Tyroglyphus as yet 

 described is this one named T. siculus, by MM. Fumouze and 

 Robin, which was found in great abundance in Cantharides in 

 Sicily, and is distinguished from the preceding by, inter alia, the 

 shortness of its legs, the greater comparative breadth of its body, 

 and its squat form. 



