No. 115.] 133 



Associated with the above species were perhaps half as many 

 of a smaller form, being about a quarter of an inch long, whitish, 

 pale brown above, each of the eighteen rings flattened above 

 and extending out rectangularly on the sides and bearing three 

 transverse rows of papillae. I take this form to be Polydesmus 

 coinjplanatus (Linn.), but have not its description at hand for verifi- 

 cation. This species has been reported by Miss Ormerod as quite 

 injurious to potatoes in England, especially to the Magnum Bonum 

 variety {Eighth Rejport of Injuriotis Insects, pp. 77, 78). Curtis 

 records it as very destructive to the roots of wheat in England. 

 Dr. Fitch mentions it in his Tenth Beport on the Insects of New 

 York (p. 27), as eating irregular patches in cucumbers, feeding 

 upon the roots of onions (p. 28), and as probably causing the "club- 

 root " in cabbage (p. 29). 



Prof. L. M. Underwood, of the Syracuse University, who is at 

 present engaged in the study of the Myriopods of North America, 

 has kindly furnished me with the following bibliography of the two 

 species above noticed. 



Julus cceruleo-cinctus Wood: In Proc. Phila. Acad. Nat. Sci., 

 1864, p. 14 ; Myriapoda of North America, p. 204 (1865). 



J. hortensis Wood : In Proc. Phila. Acad. Nat. Sci., 1864, p. 

 14; Myriapoda of North America, p. 205 (1865). Young. 



J. multistj'iatus Walsh. Practical Entomologist, ii, pp. 34, 70 

 (1866). 



Polydesmus complanatus Latreille : Hist. Nat. d. Crust., etc. 

 vii, p. 79 (1804). 



Julus complanatus Linn. : Syst. Nat., ed. xii, ii, p. 1065. 



P. serratus Say: In Journ. Phila. Acad. Nat. Sci., ii, p. 106. 



P. serratus Wood: Myriapoda of North America, p. 215 

 (1865). 



P. complanatus Gervais : Apteres iv, p. 105. 



P. complanatus Latzel : Die Myriopoden der Oesterreich- 

 Ungarischen Monarchic, ii. 150 (1884). 



? P. complanatus Fitch: Tenth Report Ins. N. Y., in Trans. 

 N. Y. St. Agricul. Soc, xxiv, for 1864, pp. 458-461 (1865). 



A large number of small mitos of two or three species — mem- 

 bers of the Acarina — dark brown, smooth, shining, ovoid in form, 



