Fig. 
LIFE-HISTORY OF THE BLACK-CURBANT GALL-MITE. 
. Diseased buds which have managed to produce dwarfed leaves. 
. New bud at the time when the mites are establishing themselves in it, 
and are now to be seen on the outside. 
Fig. 3 magnified. 
A piece of diseased bud, showing the mites and eggs in situ. 
. Two mites in the erect position, prior to leaping. 
. Lateral view of mite as seen when crawling, drawn on a ‘5 mm, chart. 
(Ultimate divisions=,'; mm.) 
Leg of mite, showing the ‘‘ feather-hair ” and bristles. 
. Posterior extremity of mite, showing the tail-disc and two bristles. 
when in the erect attitude assumed before leaping. 
Pruats 34. 
Dorsal view of the anterior end of the mite, showing the characteristic 
sculpturing of the “‘ carapace.” 
. Ventral view of same, with the mouth-parts (m.) and external sexual 
organs (s.). 
Dorsal view of posterior end. 
. Ventral view of posterior end. 
Diagrammatic representation of the positions assumed by the mite 
while endeavouring to obtain a firm hold by its tail before standing 
erect. 
. Showing how the erect attitude is assumed. 
. An egg, drawn on a‘l mm. chart, (Ultimate divisions=;35 mm.) 
. An egg at a later stage, with the contained mite, ready for hatching. 
Larval form of the mite. 
. Mite about to undergo ecdysis. 
. Mite crawling, as seen from above. 
. Cecidomyid larva found in the diseased buds—lateral view :— 
m.= mouth, s,=spiracle, 7.=trachea. 
. Magnified drawing of anterior end of the Cecidomyid larva. 
[Figs. 7, 10, 11, 16, 18, 19 drawn by the “ camera lucida.” ] _ 
