SUBFAMILY APHINAE 229 
Subtribe Macrosiphina Baker 
Baker, 1920a:53. 
Characters. Frontal tubercles well developed, usually distinctly exceeding 
vertex (excepting Kakimia and Macrosiphum coweni complex). Antenna six- 
segmented, as long or longer than body; secondary sensoria circular. Hairs on 
body blunt to capitate or funnel-shaped; (except in Artemisaphis, Bipersona 
and M. coweni complex); on antennal III to VI and tibiae usually simple, never 
much longer than diameter of segment bearing them. Lateral tubercles incon- 
spicuous or absent. Cornicle elongate, usually longer than hind tarsus, often 4 
times, with reticulated area on distal end. Rostral IV and V coalesced. Tarsal 
I approximately triangular. Fore wing with media twice-branched. Hind wing 
with both media and cubitus. Cauda usually longer than hind tarsus. 
Key to Genera of Macrosiphina 
lee Gavda slender shortersthan hind itarsa lid bec ececw es eee aes eed a eae ce wa en es geese ah ce cncsenveets 2 
Pee AUC AonOt TAS (aA DOV Ci cc creer eters ec ate renee rs el Rec Ad ec ee ee ee ANON EE SD oh, I enemas ioe 3 
Pa atidarcrenate tap pearin gat WAStEG al Din 24 7.) csectiec eens feeder esas ad ee deaascceiarenetaee saath ocenteack Bipersona 
.. Cauda tapering but not crenate or appearing twisted (p. 246)...........:ccccccccsesseees Artemisaphis 
3. Frontal tubercles each with fingerlike process (p. 344) ..........::ccccsscscsessecesessseceeeeeeeeces Phorodon 
rontaletubercles:withoutrtingerli kes proce Sse. sects siece corse tec sch ent sdesel peeeee cto en basenee esecetenseg saree 4 
Aveerrontal tubercles notegreatly exceeding Vertex). .22.-- sleet sees ccc bec cc ccecceccecuasesste Seecssensosneecseueseees 5 
Pee ONtAlatUDEnclessSTeAtl ys CXCCEGIN GS OV CLE OKs occcccc se cc-setetase fev ersessucsecncnds seaces sored- conus anesbocteneysereeeecesiea 9 
GML OIESMOIStINICE VEGA DI LA Ce seein erste es faces ce ak tac sac Sasccade ee arceccs once toe eae cupest See tee bn en Ree saa ta eve 6 
aM SBNOCOISCLTN Ctl vaca Dita t Coccecemece ieee cetiee rae ccteee acca bacaeer tents te cacti rach een cd ope nance uanth edna cote at pbariee 7 
6. Cornicle with abrupt encircling indentation just preceding flange (p. 199) 
(Gay EAP ARSED BE Rs Sak 08 2 Eo ann sone Db a eer Leer aetna tet tae Lede eRe AA ME crn Ye ae eet MeR YH Durocapillata 
Worn ClesOtasO,sNUut s1OLINa la (Ds 24S) ee sceccs sence = er seats nce. des Meeks mai) dutenedabecsetee st ieeees Capitophorus 
7. Frontal tubercles not pronounced, diverging, Aphislike........................:cccssescceeccceseeceeeeeeeeeeeeees 8 
.. Frontal tubercles pronounced and not diverging, often converging (p. 335)............---- Myzus 
SemeCOCniClemnOt retrcitateds (pm 27.5: cecees sects eoedata cotter tadecea trade ca ten estsagnee ean Sena Kakimia 
PEE OTTIECLELLeti CU ated (D4 265) ueiseasette eee te ee se he I ee Macrosiphum 
OmCOLHECLeECla Valen Date 29) ae ene eee ne oe eek es oe cei ce ee ER Amphorophora 
Corniclercylindric ale pees oy meee mer ee ees. erent ees ect Grae, PMS ee, oes eon aed ck meeeceiae Macrosiphum 
Genus Amphorophora Buckton 
Buckton, 1876:187; Baker, 1920a:54; Mason, 1925:2; Theobald, 1926:176. 
Characters. Frontal tubercles prominent on median side, distinctly exceed- 
ing vertex; antennal I gibbous. Antenna as long or longer than body. Hind 
tibia nearly as long to longer than body. Hairs blunt to slightly capitate, short, 
on antennal III and hind tibia not as long as diameter of segment bearing them. 
Cornicle longer than cauda and more or less swollen. Cauda large, either 
tapering or constricted near base. Hind tarsal II short, never longer, usually 
distinctly shorter than base of VI. Macrosiphumlike in form. This genus differs 
from Macrosiphum in shape of cornicle and tendency for hind tarsus to be 
distinctly shorter than base of VI. 
Genotype (monotypical), Amphorophora ampullata Buckton. 
Key to Species of Amphorophora 
iepecornicle distinctly reticulated athitd pce, css eee cecconesessac unde cnaostececscbentt nck tacos seep sactevaeaseconesseseavascuss 2 
Pome COriicie not Gistinctlysreticulated athti p eecscccscscocccoseeeesacce den caeeeat nn ca cecee seer eet arenes eee assuscs 10 
PeEULITICUIELAteaSt. S{CIINES!DASETOL, Vikein (OTS C il cna nee. ees heres tcc carretera nena eee 3 
...Unguis shorter than 5 times base of VI in length (p. 238).................--ccc-cosseeesceeeenceres morrisoni 
Bm costral Voi Vishortersthar Dase\Ob. V Lsc-cecccsseececes noes tnteracee ratte tee care cet rete kes nett he, carn eperdgd 4 
Pee Rostral.. Veta longvertiams base cols V. Ej iccseccceap ce cne cnet see ee ae eee eo cena ocean tetons 9 
Ame Calida pearing motunore than so) pairs; Of lateral naar secccc seses cote. cen ecck satetstevancstsscuasesdusean-cuseaenceene 5 
erm aida bearine more: thamis: DAalrsaOnateral Naar seca cee etree cree rece trcpe ea ace ceases tenes 7 
BEmGOLDICLE OND er thanell 1 Cp Zoo) ascccceetr ce ccemedepert te Ae ee duct eda an eet aaa brevitarsis 
OPNICLE OTs ON CrsthiAnied Lite sere pect tele hat hac tae eat ee ected wat ahe wana sede rise Sa otis ccetave easton 6 
6. Sensoria on III of alata fewer than 25, in single row (p. 236)...........::cc00seceeeee= goldamaryae 
Sensoria on 111 of alata 25ior more, notunisingle row (1p. 238) saccsosiac<ceecasscoacescce.crcneect-n- masoni 
