198 PHYSIS (V, 1922) 



[late virgogene. 



Color : Head and thorax blackish brown. \bdomen greenish or 

 yellowish green with four well marked black lateral spots anterior 

 to the cornicles on eilher side, and íive irregular black tran$vérse 

 bands on the dorsum ; the ihird and iburth widest and on some 

 specimens nearly conliguous. Last dorsal segment blackish as well 

 as a spot at the base and caudad of each cornicle. Eyes purple black . 

 Vnleanae blackish brown, the base of III yellowish brown. Legs 

 palé greenish with coxae, tarsi, and ápices of femora and tibiae, 

 blackish. Cornicles palé greenish with bases and ápices dark. Cauda 

 bright yellowish green. Wings delicate, hyaline ; insertions palé; 

 stigma palé umber; venation delicate, clear cut, intense brown. 



Morphological characters : Dorsum devoid of hairs. Antennac 

 plainly longer than body. Frontal tubercles as in apterous -virgoge- 

 ne. III with about 10 sensoria situated on moreor less a single row 

 which extends to within one íifth of its length from the apex. Im- 

 brication feeble, more pronounced on VI and filament. Dorsum 

 of abdomen provided with two irregular longitudonal series of po- 

 res in transversely extended groups on either side of the median. 

 Imbrication on tarsi obsolete to very faint. Cauda as in apterous 

 virgogene. Cornicles faintly imbricated, becoming stronger near 

 flange, in cióse proximity to which it forms decided polygonal recti- 

 culation. Rostrum reaches and at times surpasses second coxae. 



Relative measurenients : 



Length 2 .00 



Width 0.90 



f. t. 1 II III iv v ' vi f. 



Antennae 0.08 o.i5 0.08 0.66 o.5g 0.^1 0.19 0.66 



Cauda. ......... o. 23 



Cornicles o. 56 



I" 2"' 1 3 rd 



Í Femora. . . 0.70 0.79 0.90 



Tibiae ... 1 .35 1 ,l\o 1 .74 



v Tarsi..... o. 10 0.12 o.i5 



Rostrum. 0.57 



Hab. Lomas de Zamora, province of Buenos Aires; on Vinca majar. 

 Type material in my collection. 



Obs. I am indebted to Sr. Germán R. Huidobro for the type material, 

 who found it on the leaves and petioles of Vinca majar.. It is cióse to 

 íulacorthum convolvuli (Kalt). 



