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Species of Oecanthus. 



A. — Antennae with one black mark on each basal joint. 

 B. — Black marks like small rounded dots — Oe. niveus. 

 BB. — Mark on first joint long and hooked, that on second oblong 

 — Oe. angustipennis. 

 AA. — Antennae with two black marks on the first two basal joints. 



B. — Antennae wholly black, also head, thorax and legs. Marks on 

 first joint of antennae generally connected at apex — Oe. nigri- 

 cornis. 

 BB. — Pale greenish white; marks on antennae elongate, parallel 

 distinct — Oe. A-punctatus. 

 AAA. — Antennae without marks ©n first joints, wing covers broad: 

 head and first joints of antennae pink. — Oe. latipennis. 



