TERRESTRIAL ACART OF THE TYNE PROVINCE 5 1 



UROPLITELLA, Bed. 



Type : parade xa, C. & B. 



I. Body oval ; peritreme very slender ' ... ... ovatiila. 



Sub-circular; peritreme normal ... ... ... minutissima. 



All the species are mynnecophilous — pink, rather 

 hirsute. 



34. Uroplitella ovatnla, Berl, 



Lancashire (R.S.B.) with Lasius flavus. 



35. Uropliteila minutissima, Berl. 66, 67. 



Whitfield, Birtley, Fatfield : with Lasius flavus and 

 Z. niger. 



UROBOVELLA, Berl. 

 Type : obovata, C. & B. 



I. Length about 500^ ... ... .. obvata, 



11 75'^P'---- ••• ••• ••• ••• notabilis. 



Myrmecophiles ; pink and glossy. 



36. Urobovella obovata, C. & B. 67. 



Ninebanks, with Formica fusca, at 1,200 feet. 



37. Urobovella no fa bills, Berl. 



Ireland, with Formica fusca. 

 UROPOLYASPIS, Berl. 

 Type : haffiuliferus, Mich. 



38. Uropolyaspis hamuliferus, Mich. 66, 67. 



The specific name is a misnomer. Michael apparently 

 studied the species as a balsam mount, and 

 Berlese has never seen it alive. I was quite sure 

 my specimens were of a different species till I had 

 mounted one and found that the peculiar trichomes 

 had collapsed into the hooked form delineated by 

 Berlese. In life, they appear to be pellucid 

 globules when viewed vertically ; in profile they 

 are seen to taper into a curved stalk, which is 

 indented on one side. Berlese is mistaken in say- 



