THE BRITISH WOODLICK. 93. 



colour is white, and its body is covered with tubercles. The 

 edges of its side plates are toothed, its flagellum has but a 

 single joint and it has no eyes. 



Miss Kate Hall tells us that, if very hungry, ants in captivity 

 will kill and eat Platyartlwus. With regard to its own food, 

 Lord Avebury has favoured us with the opinion that it lives on 

 the spores of the lower plants, such as would be found in the 

 ants' nest. 



BRITISH LOCALITIES :- 



England : Warley ; Han well ; West Drayton 

 Langley ; Kingston-on-Soar ; Bluebell Hill 

 Maidstone ; (W.M.W.) : Berkhamsted ; Sal 

 combe ; Devon ; Cheddar Cliffs, Somerset 

 (Norman, 49): Ide, near Exeter; (Parfitt, 53) 

 Torquay ; (Stebbing in 49) ; Lulworth Cove 

 (Rev. A. R. Hogan teste Bate and Westwood 

 1) : Hammersmith ; Oxford ; Berry Head, Tor 

 quay ; Plymouth ; (Bate and Westwood, 1) : In 

 the nest of Myrmica rubra, Newton Ferrers 



FIG. 46.— FLAGELLUM ,,_, ^ y 



AND LAST PEDUNCULAR (-t^« -E" -L.OW6J. 



JOINTOFTHE ANTENNA 



of Platyarthru 



Hoffman nseggii 



Scotland: Banff; (Thomas Edward in 49). 



Ireland : Leixlip, Co. Dublin ; Lissmore, Co. 

 Waterford ; Glengariff, Co. Cork ; (Scharff, 63) : Bagenalstown r 

 Co. Carlow ; (64). 



FOREIGX DlSTRIBl'Tlny :— 

 Europe: France; (28): Spain; (12): Denmark; Germany; Holland; 

 Bohemia ; Austria ; Tyrol ; Helvetia ; (59). 



NOTE. — In the genera which follow, air-tubes or air-cavities 

 (tracheae) are present in the outer plates of the abdominal 

 appendages, 1 and 2, or 1 to 5. The appendages in question 

 have in consequence a milk-white appearance in the living 

 animal owing to the fact that the enclosed air reflects white 

 light. Considerable interest attaches to the study of these 

 tracheae, which have the same function as those of insects, 

 but which have been independently developed. To emphasise 

 the latter fact the structures are often termed " pseudo- 

 tracheae." 



