176 BRITISH APHIDES. 



5.— DIAGNOSIS AND DESCRIPTIONS OF THE NORTH 

 AMERICAN FOSSIL APHIDES DRAWN ON PLATE 

 CXXXIII OF THIS MONOGRAPH * 



As the genera of fossil Aphides cannot be regarded 

 as identical with recent genera, for classifying the 

 Insects now to be described, I propose the following 

 generic and specific names : 



Siphonophoeoides antiqua, Bucldon. Plate CXXXIII, 



fig. 1. 



Winged female. Body fusiform. Abdomen oval 

 and pointed. Antennas setaceous and very long =1*4. f 

 Expanse =3. Legs longer than the body. Cubitus 

 straight ; stigmatic cell very small ; stigmatic vein 

 nearly straight. Stigma narrow and inconspicuous. 

 Cubital vein twice forked. Only one oblique vein is 

 visible on this upper wing, but doubtless another 

 existed. Cornicles and cauda absent. Faint bands 

 of colour appear as fasciae across the abdomen. 



With the exception of showing no cornicles, which 

 have probably been lost, this insect .has all the chief 

 features of a Siphonophora. As a reference to a recent 

 form I specify Siphonophora v/rUca. Mag. = 8 diam. 



SiPHONOPnoROiDES siMrLEx, Buckton. Plate CXXXIII, 



fig. 2. 



Winged female. Head and body rather short. 



* Those figures are reproduced from Mr. S. H. Seudder's plate by 

 hie kind permission. 



f For the convenience of measurement in these drawings I take th<> 

 length of tin 1 whole body from head to apex as unity, to which all 

 other measurements are referable. 



