Cicada Images Keyword Album: T. davisi davisi T. canicularis looks quite different from T. davisi

T. canicularis looks quite different from T. davisi

T. canicularis looks quite different from T. davisi, but I have at least one T. davisi, captured in my back yard, that looks very similar to three canicularis individuals I caught in Northern Illinois a couple of weeks ago. The canicularis individuals all have the white “hip” spots and none of my davisi have them have them. T. davisi has a slightly larger head. The big question is, What features reliably distinguish the two species considering all the variety seen within species?

Date: 10/11/2009
Full size: 305x360
T. canicularis looks quite different from T. davisi
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