MIOCENE APHIDES OF AMERICA. 177 



Antennae setaceous; length 1*7. Legs moderate, 

 about equal in length to the antennas. Rostrum nor- 

 mally long. Wings folded pent-wise; length =2. 



As this insect is seen in profile, the exact veining of 

 the wings is not obvious. The whole insect recalls a 

 recent Siphonophora rather than an Aphis proper. 

 Reference to Siphonophora pelargonii. Mag. = 10 

 diam. 



Archilachnus pennatus, Buckton. Plate CXXXIII, 



fig. 3. 



Winged female. Body long and spindle-shaped; 

 1*0 X 0*4. Antennas about the length of the body, 

 somewhat setaceous. Wings very long and narrow ; 

 expanse 3 '3. Stigma also long and narrow. Cubital 

 space partly filled with pigment. Stigmatic cell 

 large. Cubitus twice forked. Insertions in the 

 cubitus very far back in the wing. The two oblique 

 veins spring very close to the insertion of the cubital 

 vein. Hind wings wanting. No nectaries are visible. 

 The abdomen seems to have been pale anqj. spotted. 



It appears to have been a fine species, perhaps 

 allied to our recent Lachnus pinicolus. Mag. = 8 

 diam. 



Anconatus* dorsuosus, Buckton. Plate CXXXIII, 



fig. 4. 



Head, thorax, and abdomen very broad; 1*0 X 0*5. 

 Two conical eminences seem to mark the seats of 

 former cornicles. Wings with a strong cubitus and 

 pointed stigma, which latter is carried partly round 

 the stigmatic cell. Length of wing==l*5. The cubital 

 vein has but a single fork. Oblique veins are two in 

 number. 



* (From dyicwv, cubitus, an elbow). 

 VOL. IV. 12 



