TERRESTRIAL ACARI OF THE TYNE PROVINCE 65 



LASIOSEIUS, Berl. 



Type : muricatus, K. 



Body oval. Dorsal setas in longitudinal parallel 

 series, simple setaceous, or slightly squamose- 

 clavate or plumose. Cuticle smooth or very slightly 

 scabrid. 



1. Dorsal pubescence setaceous ... ... ... ... 2 



,, of thickened sette... ... ... 3 



2. Ventro-anal scutum straight in front... ... ... muricaiiis. 



,, emarginate in front ... ... L'l'is. 



3. Ventro-anal shield nearly as broad as venter ... spathi/liger. 



,, not so broad ... ... ... plumosits. 



86. Lasioseius muricatus, K. 67. 



Whitfield— on a decaying log, abundant. 

 Ireland (Wicklow, one specimen). 



87. Lasioseius ievis, O. & V. 



Ireland, moss and sphagnum. 



88. Lasioseius plumosus, Oud. 66, 67. 



In the litter of barns, stables, &c., abundant. 



89. Lasioseius spathuliger, Leon. 67. 



Very like the preceding but larger and always in 

 living herbage. I have never met with it indoors. 

 Ireland, in moss. 



ZERCONOPSIS, gen. nov. 

 Type : 7-emigera, Kramer, 



Body oblong, truncate behind, the prescapular part 

 triangular. Sides more or less serrulate : dorsum 

 flat, rough and punctured. 

 I. Two clavate setse on the hind margin ... ... remigera. 



All the setae minute similar ... ... ... ... minutus. 



90. Zerconopsis remigera, Kr. 67. 



Ninebanks Vicarage, under a dead blackbird laid 

 out as a trap. Also abundantly under bark of a 

 fallen tree. 



Ireland, in fungus and fungus-infected bark. 



E 



