i go 



PHYSIS (V, 1922) 



all over the countrj including Tucumán, Mendoza, Viedma, Santa Fe and 

 Córdoba. Juan M. Bosq gave me several specimens which be found 011 

 ibe leaves oí' a Mediar (Eriobotrya japónica) which I believe was a case 

 oí* transiton invasión. 



Macrosiphum solanifolii (Ashm.) (iig. 3) 



[pterous virgogene. 



Color : Palé glistening green to yellowish green. Eyes black lo 

 purple black. Antennae concolorons with body ; at times slightly 

 dusky with the tips oí' 111 and IV, and all of V, VI and filament dar- 



Fig. 3. — Macrosiphum solanifolii (Ashmd.). Apterous virgogene : a, anten- 

 na; 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, 

 cornicle; j, tip of cornicle. 



kened. Legs light y ello w green with tarsi, apical portionsjaf tibia e 

 subeqúal in length to tarsi, darkened. Cornicles with proximal 

 portions greenish and distal portions darkened. Cauda, anal and 

 genital plates, concolorous with the body. 



Morphological characters : Body pyriform elongated. Dorsum 

 and venter provided with very minute inconspicuous hairs. Anten- 

 nae with íaint imbrications on distal half of V, more pronounced 

 on VI and filament; remaining segments smooth. III provided with 

 hairs sub-equal lo its greatest diameter and with from two to five 

 rather small sensoria situated on the basal i/!\ of its length. Ros- 

 trum rather short and robust. not or barely reaching the second 

 coxae. Cornicles fainlly imbricated over the basal 3/4 ; distal i/o 

 with pronounced polygonal recticulations. Cauda ensiform, with 



