166 ASSOCIATION OF ECONOMIC ENTOMOLOGISTS. 



Prothoracic tubercles: Present, absent. 



Venation 



Wings 



Stigma 



f [Apparent, mm, 



Len ^ th EeaLmm.... 



Breadth J Apparent, mm. 

 I [Real, mm ... .. 



Total expansion ^parent, mm. 

 I Real, mm 



Tubercles 



[Cylindrical, incrassate, clavate, tubereulate. 

 Extent, base of style, distal end 



Honev-tubes 



Length J Apparent, mm, 

 I Real, mm 



[Glabrous, hirsute 



^, ■> jEnsiform, conical, globular, subglobular, obsolete. 



I [Apparent, mm 



l Len - th JReal, mm 



Total length of body JA-PI™™*. mm 



[Real, mm 



Width of abdomen {Apparent, mm 



Real, mm 



Mr. Osborn said that he wished to call especial attention to the 

 fact that in this family the nymphs were of much value as a means 

 of specific distinction. 



In the absence of their authors the following papers were presented 

 by the secretary. 



THE CURRANT ROOT-APHIS. 



(Schizoneura fodiens Buckton.) 



By Feed V. Theobald. M. A. (Cantab.), Wye, England. 



During the present autumn (1905) several notices have been sent 

 me regarding the prevalence on the roots of currants of a woolly 

 and mealy aphis. As such root forms are very easily distributed 

 with young nursery stock, a few notes regarding this insect may 

 serve a useful purpose to my fellow-workers in America and our 

 colonies, should it be imported abroad. 



The currant root-aphis, or currant woolly aphis, as it is sometimes 

 called here, is undoubtedly the species described by Buckton in his 

 Monograph of British Aphides a as Schizoneura fodiens. This insect 

 is roughly figured on Plate CVI (figs. 6 to 12) of that work, but 

 the details are not sufficient to enable certain determination should 

 the insect appear elsewhere, and it is hoped that the additional struc- 

 tural details given here will fill some of the gaps in the original 

 description. 



The appearances on the roots to some extent resemble those of the 

 woolly aphis [Schizoneura lanigera Hausm.), and in consequence 



o Vol. Ill, p. 94, 1SS0. 



