ART. 20 



THE APHID GENUS AMPHOROPHOEA MASON 



45 



Davidson in his description of arbuti says, "Joint III has about 20 

 small sensoria, joint IV about 8 smaller ones." I have been unable 

 to see any sensoria on IV in the specimens which he furnished me. 



Apterous viviparous female. — Small, xintennae nearly twice as 

 long as body, light colored, the tips of segments and all of VI darker, 

 faintly imbricated, hairs inconspicuous, no secondary sensoria. 

 Antennal sensoria prominent. Beak reaching third coxae. Cornicles 

 long, slender, slightly but distinctly swollen, imbricated, not reticu- 

 lated. Cauda very broad, scarcely constricted, with two sets of 

 lateral hairs. 



Aritennal measurements 



Other measurements 



