Insect.'!, etc., Injurious to the Vine. 



483 



Tj:eatmI'.xt. 



These larLj;e prominent scule insects may be Icilleil Ijy painting- uv 

 sponging with para.ffin emulsion, or may Ije destroyeil by haml, which 

 seems to be the most usual plan. 



Kefei'.knoes. 



(1) Nrwsfciiil. B. ' Monogt-aph of liiitish foccidic,' \-ol. II., j-). ,01 (1903). 

 (-2) Frniril,!. Mai-'ui E. 'A Catalo.i^uc of the Gocci(l;e of the World,' p. 140 

 (190;!). 



THE MEALY BUGS. 



{Dacfiflopiu--^ fitri, liisso, and I>. Jomj'nipi iivx, Targ -Tozz.) 



Tliere are two mealy bugs found on \ines under glass and on 

 many other plants in tliis country, where they do considerable damage. 



Tlie common species, I>. 

 ciiri, has also been found out 

 of doors on the iv^'-clad walls 

 of a hothouse at Kew and 

 ill a few otbicr places, Ijut 

 Kewstead tells us lie has not 

 known it thrive long in sueli 

 places. The difference be- 

 tween these two white mealy 

 Coccids can at once be seen ; 

 cilrl has short pmcesses, 

 Imujisiii II ii:< very long ones. 



They slielter in crevices 

 and under the skin of the 

 vines, where tlieir white 

 woolly secretions soon cause 

 them to be detected. In this country under glass the mealy bugs 

 breed all the year round. 



The adult L. cihi female is elongated oval and covered with white 

 mealy wax, e.xcept at the articulations of the segments, and the waxy 

 marginal appendages are seen to differ from those of D. luiKjiqn uns. 

 The length varies from ^V t(i rather more than -^ inch. 



The male is winged and is found in summer in liot weather. The 

 colour is reddish-brown and mealy, tlie two wings with intense blue 

 iridescence and the abdomen with t\vo long caudal filaments. 



D. cifrl is a "reat pest out of doors on oranges in South pAirope. 



' 2 I 2 



-KE31ALE .ACEALY liLO. (/ S.) 



