iga PHYSIS (V, 1922) 



Hab. Buenos Vires on Watsonia and Lactuca* 



Obs. Altho 1 have aol yol round this species on solanaceae, Ibelieveil 

 to be the same as the one described by Ashmead, in C anadian Entomo- 

 logist, \lll. p. 92, 1881. lis morphological characters agree perfectly 

 with the detailed descriptions of Patcli and othcrs and accordingly il 

 should be considerad as solanifolii (Ashm.) until its identity may be con- 

 linncd. 



Macrosiphum sonchi (Linn.) (fig. 4) 



. Ipterous virgogene. 



Color : (¡eneral color cupric-brown shinning. Antcnnae with 1. 

 II; dislal third of IV, Y and YI with íilament, blackish brown. III 



Fig. á. — Macrosiphum sonchi (L.). Apterous virgogene : a, antcnna; 6, 

 segment III of antenna ; c, cornicle ; d, tip of cornicle ; e, cauda. Álate 

 virgogene : f, cauda; g, antenna; h, segment III of antenna; i, corni- 

 cle; j, tip of cornicle. 



palé straw tipped with blackish; I\ straw color for two thirds its 

 léngth. Head, pronotum; basal and distal third of cornicles. coxae. 

 larsi, distal portions of femora and tibiae, and rostrum blackish. 

 Dorsum provided with transverse series of small blackish spots ; a 

 large black spot candad and contiguous to the origin of each cor- 

 nicle ; small blackish spots contiguous to spiracles and a transverse 

 band on seventh tergite. Vnal and genital shield distinctly blacke- 

 ned. Humeral angles provided with a large black spot as also thal 

 portion of the dorsum that sepárales them. 



Morphological characters : Pyriform elongate. Dorsum provided 

 with piliferous tubercles in transverse series that usual!) are placed 



