7ieio and rare British Diplopods. 17 7 



uiidirsiile, described ])y Ijatzel in 18>>1 in an appeiulix to 

 I'leucllionime de B^iie's '* Note siir Ics JulicKis do la ljcl;^i(|iie " 

 (' Coniptes lienduddeiaSocit'tc Entoniologitjue de Belgi(jue'). 

 Latzel tigures the male organs. 



I first discovered tliis species in a limited area in the 

 grounds below Lincolme Drive, Torquay, October 1918, 

 where it occurred in nioderate numbers in dampish vegetable 

 detritus chiefly consisting ot dead bracken and coniferous 

 needles. ()nly two males Avere secured, but, a month later, 

 my tViend Mr. J. Williams Vauglian collected me a I'urther 

 su|)ply, which included a larger [)roportiou of males. 



First British record. 



Cylindroiulus nitidus (Verb.). 



Other than some of the original Staffordshire specimens, 

 which my good friend Mr. S. G. Biade-Birks was good 

 enough to send me, I have not seen male examples, aud the 

 following records refer to the female sex only. 



Staffordsiiiije, Charnet Valley, near Froghall, aud 

 Lincolnshire, llarlaxton, August 1918 (/. C. Vardj- 

 Smith). 



Isolates sp. 



In the spring of this year I collected large numbers of a 

 species very like Isobates varicornis, but lighter in colour, 

 noticeably more slender and very much more rapid in its 

 movement'*, being the most active Prutoiulid I have observed. 

 It is of a pale yellowish-brown colour, with large black 

 lateral spots. Only one nuile, which awaits examination, 

 was secured. 



Kent, Leeds Castle, under elder-bark, 29. iii. 21 ; and 

 Herts, near VVelwyn, under beech-bark, 1. iv. 21. 



Mastigonodesmus boncit\ Brolemann. 



Whilst ffoinu' throuiih some tubes of Macrosternodesinus, I 

 jjicked out a broken example wiiicli could be separated as 

 apparently dilferent by the naked eye. Thinking it might 

 be a small example of Ojjhiodenmus, I examined it closely, 

 and found that it agreed in every particular with specimens of 

 the above species kindly presented to me by Brolemann. 

 Unfortunately the single specimen was only a female, but, 

 after comparison with specimens of Al. boncii, I have no 

 hesitation whatever in referring it to that species. 



Durham, Gibcidc, with M. palicola. 

 Ann. (£• Mag. xV. Hist. Ser. 9. Vol. ix. 12 



