98 THE BRITISH WOODLICE.
BRITISH LOCALITIES : —
England: Maldon; (W.M.W. from R.M.): Ipswich (1892);
Hanwell; Wimbledon ; (W.M.W.): Kent; (Kinahan 32),
Ireland : Dublin ; (Bate and Westwood, 1) : Blackrock;
Dundrum ; Co. Dublin ; Galway; (R.F.S.)
FOREIGN DISTRIBUTION:—
Europe: Fiance; (25); Spain; (15): Sicily; (19) : Hertzogovania; (22):
Sweden; Denmark; Germany; Belgium; Austria; Italy; Dalmatia; Greece;
Turkey ; (59) ; Corfu ; (B.M.) : Inca, Majorca (23) ; (B.M.—Pocock and
Thomas.)
Asia: Syria; Turkestan; (21).
Africa: Morocco; Algeria ; Tunis ; Tripoli; Senegal; Egypt; (23).
Atlantic Isles : Bermudas ; Azores; Canaries ; Cape Vera ; Madeira ; (24).
America : North America ; Mexico ; Peru ; Brazil ; Chili ; West Indies ;
Pacific Islands ; (59); Sandwich Isles; (B.M.)
Porcellio ratzeburgii Brandt. Plate XVIII.
1833 Porcellio ratzeburgii Brandt, (3), p. 178.
1839 Porcellio nemorensis Koch (34), part 28. pl. XIX.
1839 Porcellio lugubris Koch (34), part 28, pl. XX.
1853 Porcellio quercum Schnitzler (65), p. 24.
1898 Porcellio ratzeburgii Sars (59), p. 182, pl. LXXX, fig. 1.
There are granulations on the middle of the segments in
Porcellio ratzeburgii and the sides of its body are more nearly
parallel than in the other species of Porcellio ;
the frontal lobe is, practically speaking, semi-
circular and the lateral plates of the thorax
flank the head to a considerable extent. As in
Porcellio pictus, the dark band is in the middle of
the back. The distal joint of the flagellum is
nearly twice as long as the proximal, and the
flagellum is shorter than the last joint of the
peduncle. This species was added to the
British list by Mr. Webb (74) in 1898.
Porcellio ratzeburgii agrees with Porcellio
rathkei in having air-tubes in the first five
abdominal appendages.
BRITISH LOCALITIES:—
England : Warley ; Brightlingsea ; young
examples (W.M.W.) : Maldon; young examples
(W.M.W. from R.M.)
FOREIGN DISTRIBUTION : —
Europe : Trafoi St. Martini, and Capitello, in the Tyrol; (Norman, 50);
East Alps, very common ; Val-de-Joux ; Massif de la Chartreuse Vaulnaveys (25) ;
Bosnia; (22): Norway; Central Europe; Upper Pfaltz; Bohemia; Saxony;.
Rhaetia; (59).