ART. 20 THE APHID GENUS AMPHOROPHOEA MASON 9 



AMPHOROPHORA ALNI, new species 



Figs. 1-3 



Apterous viviparous female. — Antennae longer than body, slender; 

 hairs shorter than width of segments, one to three small sensoria 

 near base of III, antennal measurements as follows: 



Antennal tubercles large and prominent. Capitate hairs present 

 on vertex and on basal antennal segments. Beak reaching third 

 coxae. Cauda long, broad, not constricted, with two sets of lateral 

 hairs. Cornicles very long, moderately swollen on distal half, dis- 

 tinctly reticulate at tip. 



Last Instar Apterous Nymph 



Described from specimens submitted by Miss Patch, taken at 

 Orono, Me., on Alnus incana, August 7, 1916 (Maine No. 127-16). 

 Three apterous viviparous females and several njTnphs. No alates. 



