Galls caused by the larvae, nymphs, and imagines 

 of Eriophyes sanguisorbae Nal, 



on 



the leaflets of Poterium sanguisorba Linn. 



PLATE 6i. 



Synonymy of Mite. 



Phytoptus sanguisorbcE Canest. 

 Erineum ■t>oterii De C. 



Habitat of Salad Burnet. — In dry pastures ; found mostly 

 in the limestone and chalk districts of England, but scarce 

 in Scotland and Ireland. 



Position of the Galls. — On the leaflets. 



Manner of Growth. — Each alTected leaflet becomes coated 

 with pubescence. 



Colour. — Pale straw colour. 



Average Dimensions of a Mature Specimen (a single 

 leaflet). 

 Length, 8 mm. ; breadth, 4 mm. ; girth, 10 mm. 



May be sought during the months of June, July, and August 



The Growth is complete by the end of July. 



These pretty little galls are described by Nalepa (" Katalog 

 der bisher beschriebenen Gallmilben," p. 298) as " Abnormer 

 Haarfilz an der Blattern und Stengeln " (" abnormal felt of hair 

 on the leaves and stalks"). They are exceedingly pubescent, 

 and in specimens in which the three apical leaflets are swollen 

 and thickly covered with hairs the appearance is that of a 

 tuft of wool. 



The illustration is of specimens gathered near Goodwood 

 by Mr. R. R. Hutchinson. 



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