mJURIOUS ARTHROPODS. 



Bryobia pratensis Garman. 



The Clover Mite. 



(Class Arachnida : Ord. Acarina : Fam. Trombidid^.) 



LiNTNER : in Count, Gent.,xlvi, 1881, p. 376 (infesting clothing). 



Trombidium ?bicolor Herm. Lintner : in Count. Gent., xlvii, 1882, p. 395 ; 

 the same, [3d] Kept. St. Ent. to Regents, for 1886, pp, 128-130 (on 

 timothy). 



Bryobia sp. Riley : in Rept. Commis. Agricul. for 1884, 1885, p. 413 (infest- 

 ing houses in Diamond Hill, R. Isl,, and Waltham, Mass.). 



Forbes : 14th Rept. Ins. 111., 1885, p. 73 (on clover and grass). 



Brijobia pratensis Garman : in 14th Rept. Ins. 111., 1885, p. 73, pi. 6, f. 7 

 (description) ; in Prairie Farmer, for June 26, 1886. 



Bryobia pallida Garman : in 14th Rept. Ins. 111., 1885, p. 74 (description of 

 immature form). 



Cook : in Mich. Farmer, for Jan. 9, 1888 (in houses in Scotts, 



Mich.). 



Bryobia sp. Lintner: in Ohio Farmer, for April 13, 1889, p. 274; as B. 

 ? pratensis, 6th Rept. Ins. N. Y., 1890, pp. 62-65 (occurrences of, 

 habits, and remedies) ; in Albany Evening Journal, for Sept, 5, 1890, 

 p. 5 (in a water-trough, etc). 



Bryobia sp. ? Webster : in Insect Life, i, 1889, pjx 277-279 (infesting houses 

 and timothy in Ind.). 



Wisner : in Insect Life, i, 1889, p. 252 (by roadside and in 



fields, in Mich.). 



Near Tetranychns. Riley-Howard : in Insect Life, i, 1889, p. 252 (refers to 

 prec). 



Bryobia ijratensis. Riley-Howard: in Insect Life, ii, 1890, p. 279 (in houses 

 in Wilmington, O.). 



Ellis : ib., p. 278 (injury of the prec). 



Bryobia pratensis Garman. Riley-Marlett : in Insect, Life, iii, 1890, pp. 

 45-52, figs. 4, 5 (history, distribution, life-history, remedies, descrip- 

 tion of stages). 



This minute, spider-like red mite has, during the past ten years, as 

 may be seen from its bibliography above given (all of which is 

 believed to refer to it), been frequently brought to our notice from 

 the immense number in which it has occurred in clover, timothy and 

 other grass fields, and the serious annoyance which it has caused in 

 its entrance in myriads in dwelling-houses. It was first given scientific 



