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number of spurs on metabasitarsus number of apical spurs on metatibia cell cu1of forewing antennal length  
2 5 shorter than twice head width Cacopsylla 
2 4 low shorter than twice head width Chamaepsylla
2 5 high shorter than twice head width Spanioneura
2 5-8 high shorter than twice head width Psylla buxi
2 5-8 low more than twice head width Baeopelma, Psylla
1-2 5-6 shorter than twice head width Acizzia
0-1 5 low twice as long as head width or more Arytaina,Arytainilla, Livilla
2 5 high shorter than twice head width Cyamophila