THE BRITISH WOODLICE. 



8q 



Haplophthalmus danicus Budde-Lund. Plate VIII. 



1870 Haplophthalmus elegans Budde-Lund 6), p. 228 (not Haplophthalmus 



elegans Schobl). 

 1879 Haplophthalmus danicus Budde-Lund (7), p. 9. 

 18S1 Haplophthalmus mengii Weber (76), p. 192, pi. V., figs. 7-9 (not Ilea 



mengii Zaddach). 

 1885 Haplophthalmus danicus Budde-Lund (8), p. 250. 

 1898 Haplophthalmus danicus Sars (59), p. 168, pi. LXXIV., fig. 2. 



This species was added to the British list by the Rev. Canon 

 Norman (49), who found a colony in his garden 

 at Berkhamsted. It has rows of tubercles on 

 its thorax instead of ridges, and there are no 

 ribs at all upon the abdomen. The front of the 

 head projects further comparatively and forms 

 a more acute point than in Haplophthalmus mengii 

 and it is not so purely white in colour as the 

 latter species. 



BRITISH LOCALITIES :— 



England: Warley Place; (W.M.W. from 

 Miss Willmott) : Queen's Cottage, Kew Gar- 

 dens ; Stanmore ; Hanwell, garden at Odstock, 

 Bennett's Nurseries ;(W.M.W.) : Berkhamsted ; 

 (Norman, 49). 



FOREIGN DISTRIBUTION :-- 

 Europe: Fiance ; (2O ; Denmark ; Holland ; Germany ; and last peduncular 



,^ „,„ _^ , T - T A ., n ,, , T JOINT OF THE ANTENNA 



(Dollfus, Feu de Jeun, Nat., April, ib<)t) : Norway; OF Haplophthalmus 

 (Sars, 59). danicus. 



Scxfwn—ONISCI. 



THE OUTER DIVISIONS OF THE TAIL APPENDAGES BROADER THAN 



THE INNER ONES. 



Family— ONISCID^. 

 Tail appendages projecting when the animal is walking. 



(1.) Unable to roll up into a complete ball. 



Genus— ONISCUS Linne 1746 (41), p. 360. 



Flagellum, with three joints ; abdomen broad ; head with lateral lobes. 



The characters given above taken in conjunction with the 



size of the animals will serve to distinguish' the members of 



this genus. 



Oniscus asellus Linne (The " Common Slater.") Plate IX. 



1761 Oniscus asellus Linne (41), p. 500, No, 2058. 



1792 Oniscus murarius Cuvier (9), p. 22, pi. XXVI. 



1818 Oniscus Jossor Koch (34), part 22, pi. XXII. 



\$6i Oniscus asellus Bate and Westwood (1), p. 468. 



1868 Oniscus jossor Bate and Westwood (1), pp. 471-2. 



1898 Oniscus asellus Sars (59), p. 171, pi. LXXV. 



FIG. 41 —FLAGELLUM 



