396 REV. J. E. HULL ON 



72. Oribatula exilis, Nic. 66, 67, 68. 



Ubiquitous. 



73. Oribatula tibialis, Nic. 66b, 67ab. 



General (B.O.). Cheshire, Cumberland, Scotland. 



74. Oribatula venusta, Berl. 



Recorded from the west of Ireland by Halbert. 



75. Oribatula affinis, Hull. 66b, 67a, 68a. 



This appears to be a subalpine species. 



76. Oribatula carnea, sp. nov. 67b. 



Length, 410 [x. ; greatest width, 240 fx. 



Rostral setae long and set rather far back. Lamellar 

 and interlamellar setae stout but simple. Lamellae of 

 uniform width throughout, their proximal ends 

 (with the aestheterium) hidden by the projecting 

 margin of the dorsum. Sensillus fairly long, 

 rather abruptly reflexed, its head clavate, slightly 

 gibbous on the forward side where it is clothed 

 with minute appressed hairs. 



Dorsum hairless, its fore margin projecting very 

 considerably with two little indentations on each 

 side, the inner more distinct than the outer. 

 Humeral projections large, transparent, extending 

 to the middle of the dorsum. 



Tibia i expanded and truncate at its distal end where 

 it bears a long tactile hair (97 /u..) ; a similar shorter 

 hair (62 /x..) on the patella. Femur i with a very 

 narrow blade ; tarsus slightly longer than the tibia, 

 straight and feathered with fine hairs beneath, 

 gibbous with five irregular hairs above. Claws 

 tridactyle. 



A few specimens from a nest of Formica rufa, Riding 

 Mill. 



77. Oribatula lucasii, Nic. 67a. 



(uon Oribata lucasii, B.O.) 

 Cumberland. Scottish and Irish examples under 

 this name may belong to this or the next, or 

 possibly to both. 



