104 FRED. V. THEOBALD. 



here as Siphocoryne splendens might at first be mistaken for S. avenae, bub its brilliant 

 colours at once separate it, and then one can also detect some small, but marked, 

 structural peculiarities. 



I have been forced to add three new genera here, because they cannot be reasonably 

 placed in any of the great number of genera which have been recently created, nor 

 do they conform to the more natural genera of the older naturalists. One, which 

 I call Neotoxoptera, because it comes near Toxoptera, is found on violets in the 

 Transvaal ; another, of most marked facies — Saltusaphis, the jumpmg aphid — is 

 from sedges in Egypt ; the third is a pine lachnid from the same country, for which 

 I propose the name Protolachnus. Thirty-three species are here added to the scanty 

 African fauna. 



Second List of African Aphididae. 



Macrosiphum pisi, Kalt. 



Macrosiphmn sonchi, L. 



Macrosiphum compositae, sp. nov. 



Macrosiphum nigrinectaria, sp. nov. 



Macrosiphum hederae, sp. nov. 



Macrosiphum rosaefolium, sp. nov. 



Macrosiphoniella chrysanthemi, Del G. 



Rhopalosiphum carduellinum, sp. nov. 



Rhopalosiphum lactucellum, sp. nov. 



Siphocoryne (? Aphis) splendens, sp. nov. 



Siphocoryne (? Aphis) nymphaeae, L. 



Aphis hederella, sp. nov. 



Aphis pseudocardui, sp. nov. 



Aphis leguminosae, sp. nov. 



Aphis compositae, sp. nov. 



Aphis punicella, sp. nov. 



Aphis parvus, sp. nov. 



Aphis maidis. Fitch. 



Aphis laburni, Kalt. 



Aphis medicaginis, Koch. 



Aphis (?) cynarae, sp. nov. 



Myzus tetrahodus, Walk. 



Myzus asclepiadis, Pass. 



Neotoxoptera violae, gen. et sp. nov. 



Chaitophorus popidus, L. 



Callipterus ononidis, Kalt. 



Saltusaphis scirpus, gen. et sp. nov. 



Anoecia willcocksi, sp. nov. 



Lachnus viminalis, Boyer. 



Protolachnus tuherculostemmata, gen. et sp. nov. 



Pemphigus glohulosus, sp. nov. 



Tychea phaseoli. Pass. 



Rhizobius graminis, Buckton ? 



