EvERARD E. Bl.ANClIARD : Apllid notes 211 



Relativo rneasurements : 



Length 2 .00 



Width 0.82 



f. t. I II III IV V VI f. 



Antennae 0.60 o. 10 0.07 0.69 0.28 0.29 o. 11 0.39 



Canda. 0.18 



Corniales o. 34 



i st 2" d 3 ra 



/ Femora. . . o.5g o. 52 0.70 



Legs } Tibiae ... 1 . 12 1 .o5 1 .32 



' Tarsi. .... o. 10 o. 10 o. n 



Rostrum. 0.49 



Hab. Common on cultivated rose, Buenos Aires, Lomas de Zamora 

 (prov. Buenos Aires) G. R. Huidobro col. ; Flores (prov. Buenos Aires) 

 J. M. Bosq col. ; Belgrano and Sim Isidro (prov. Buenos Aires). 



Obs. This species is nearly as common as the ubiquitous Macrosiphum 

 rosae (L.) and can be readily recognized by the large conspicuous coni- 

 cal tubercles bearing capitate hairs that cover its dorsum. 



Genus MYZUS Passerini 



Myzus persicae (Sulzer) (fig. i3) 



Apterous virgo gene. 



Color : Varíes from greenish to yellowish green, at times mot- 

 tled. Eyes dark brownish. Antennae dusky with base of III paler. 

 Legs palé straw to palé yellow Avith blackish tarsi. Cauda and cor- 

 nicles yellow green. Rostrum concolorous with body with darke- 

 ned tip. 



Morphological characters : Oval slightly convex with a few fine, 

 short small hairs scattered over the front and lateral borders. An- 

 tennae with III provided with minute spine-like hairs that are sub- 

 equal in length to i/4 its greatest breadth. Imbrication present on 

 I, Y, VI and filament ; remaining segments smooth. Cornicles cy- 

 lindrical to slightly swollen on the distal half of their length. Cau- 

 da sub conical with about three pairs of lateral bristles. Rostrum 

 attains second pair coxae with apex. Tarsi with feeble to obsolete 

 imbrications. 



