408 REV. J. E. HULL ON 



COSMOCHTHONIUS, Berl. 



150. Cosmochthonius lanatus, Mich. 



" Not uncommon " (B.O.) ! No other record. 



BRACHYCHTHONIUS, Berl. 



151. Brachychthonius brevis, Mich. 66b. 



Epping Forest, Staffordshire (B.O.). Scotland, 

 Ireland. 



F. — Sub-family Phthiracarinae. 



Cephalothorax hinged to the abdomen so as to be movable 



(vertically). 



Claws monodactyle ... ... ... ... Hoplodcrma 



Claws tridactyle ... ... ... ... Phthiracarus 



HOPLODERMA, Michael. 



1. Cephalothorax with a median carina ... 2 

 Cephalothorax without carina ... ... 3 



2. Front margin of dorsum produced forward anomalum 

 Front margin of dorsum normal ... ... magnitm 



3. Dorsum smooth polished ... ... ... 4 



Dorsum pitted ... .. . ... striatla 



4. Sensillus bluntly fusiform, erect ... ... dasypus 



Sensillus linear fusiform, needlepointed ... affine 



152. Hopeoderma magnum, Nic. 66bc, 6yac, 68a. 



Cumberland, Yorkshire, Lancashire, Cheshire, Scot- 

 land, Ireland. 



153. Hoploderma anomalum, Berl. 



Gomshall, Surrey (B.O.). 



154. Hoploderma stricula, K. 



Warwickshire, Staffordshire (B.O.). Cheshire, Scot- 

 land. 



155. Hoploderma dasypus, Dug. 66, 67, 68. 



Ubiquitous. Scotland, Ireland. 



156. Hoploderma affine, Hull. 66ac, 67a. 



Cumberland, Cheshire. 



