Pomona (Jum.kuk Joi k.n vl ok KNToiioUKiv 759 



5. Ni'ctarit's lus long us one-rourth the li-iigtli ol' tlie luuly, or more, 



und swollen in tiu- iiiiildle. Drtpanusiiihuin 



Nectaries large and nearly one-rourlli the lengtii of tiie IhmIv, 



swollen at the base and tapering toward the middle. I)n paiiapln.s 



(J. S|)ur of sixth antennal segment longer than the segment. Calaphis 



Spur of sixth segment not longer than segment. Eucrraphis 



7. Antenna- Ktnger than the body, spur of the si.\th .segment long, 



and about the same length lus the .segment. H 



Antenna- shorter than the body, spur very .siiort, often being little 



inore than a nail-like proee.ss, segment short. !) 



8. Antenna; with spur at least a.s long as si.\th segment, and with little 



or no antennal tubercles. Nectaries twice as long lus broad and 

 constricted in th(- middle. Myzocallis 



Antenna- with spur sliortcr than si.\th segmtiit, nectaries much 



broadened at base. Eucalliptcrus 



9. Antennal spur less than onchaif the length of the sixth .s(-gmeut, 



nectaries not longer than broad at base, constricted in the mid- 

 dle. Chroma phis 



Antennal spur at least half lus long as the sixth segment, nectaries 



short, about as long as broail and placed on a broad biuse. VaUiptcrns 

 10. Autcuuiu situated on distinct tubercles and nuicli longer tluin the 

 body, nectaries but pores with raised t-dges, spur of si.xth .seg- 

 ment long and tapering. Monaphis 



Antenna- not on tub(-rcles and .scarcely long(-r than th«- body, nec- 

 taries reduced to pores, spur of the si.xth joint nearly lus long as 

 the joint. Mom Ilia 



DREPANOSIPHUM Koch, 1855 

 Type Aphis platanoides Sclirank 



Atitctniar — On distinct frontal tul)ercles which are elevated on the inner 

 side, exceedingly long, lirst arti(-le gibbous on the inner side, third segment 

 longest, spur of the sixth s(-giiicnt much longer than the base (Wil.son gives six 

 times as long). 



Rustniin — Short, last si-gmcnt long. 



Legs — Moderately long. 



Wings — Long and sU-nder. 



Cornicles — Long, one-fourth tin- length of tin- body, ililatt-d at tin- base 

 and middle. 



atyle—" Ouf-UmiXU the length of the m-ctaries. oblong and globular at 

 the tip; base broad, tai)ering to a constriction at the connection with the base." 



Anal plate — "Broad and slightly emarginatcd." 



I), platanoides iSchranki. On the European Sycamore il'latanus orien- 

 talis). Collected in the vicinity of Stanford I'niversity, I'alto Alto, California, 

 hv \V. .M. David.son. .Ir. He. Hnt. Ill, 377, 1010. 



