ART. 20 



THE APHID GENUS AMPHOROPHORA MASON 



73 



Pergande left the following note: 



" 5591'^. Rhop.lactucaef December 4.94. Found one winged male 

 on under side of leaf of turnip, which may belong to this species. 

 Dark parts black; light parts yellow. Prothorax in front and behind 

 orange; base and end of abdomen orange, rest yellow, six dusky 

 transv. medio-dorsal spots; lateral spots black. Mounted in balsam." 



Quaintance No. 22023, Bragg No. 117 



Taken on grass at Marblehead, Mass., October 11, 1920, by L. C. 

 Bragg. 



Alate Male. — Antennae dark colored, very tuberculate. Hairs 

 long, heavy, conspicuous. Antennal tubercles very short. Beak 

 reaching second coxae. No prothoracic or abdominal tubercles 

 showing. Cornicles long, moderately swollen, dark colored, lighter 

 at base, inconspicuously reticulate at tip. Cauda long, slender, 

 constricted. Measurements as follows: 



Antennal measurements 



Other measurements 



Last instar nymph 



43328— 25t 6 



