128 ON NEW AND RARE BRITISH ARACHNIDA. 



Linyphia impigra, Cambr. 



Received from Mr. Ruskin Butterfield, by whom it was 

 found in the Pevensey Marshes, Sussex, in 1906. A very 

 local species, but would probably not be rare where it occurs. 



Leptyphantes patens, sp. n., PL A., Figs. 20-25. 



Both sexes, adult, found in ants' nests near Wellington 

 College, Wokingham, and kindly sent to me by Mr. H. 

 Donisthorpe. (For detailed description see p. 139, postea.) 



Tmetieus reprobus, Cambr. 



Adults of both sexes found at St. Margaret's Bay, near 

 Dover, by the Rev. J. H. Bloom and kindly sent to me by 

 him in July, 1906. 



Tmetieus emptus, Jackson, PL A., Figs. 26-31. 



Centromerus empttis, Jackson, 1907 Proc. Chester 



Soc., 1907, Part VI., No. i, p. 4, PL I, Fig. 16-22. 



Both sexes were sent to me by Dr. A. R. Jackson from 



Delamere Forest in 1906. Allied to T. contritus, Cambr., 



and T. prudens, Cambr. ; but quite distinct. (For detailed 



description see p. 140, postea.) 



Tmetieus nigrieauda, sp. n., Pi. A., Figs. 32, 33, and PL B., 



Figs. 34-41. 



Adult females were found in April, 1906, in heaps of old 

 bones near Queenborough, Kent, and again the same sex 

 occurred in heaps of dead sticks and vegetable refuse at 

 Enfield, Essex. Subsequently (November, 1906) adults 

 of both sexes were found in a similar habitat, also at 

 Enfield. It is a remarkably striking and distinct species. 

 (For details see p. 141, postea.) 



Tmetieus fortunatus, Cambr. PL B., Figs. 42-44. 



An adult male found by myself on the column of the 

 porch at the Rectory, Bloxworth, on May 2ist, 1906; with 



