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Photo#148931
Cicada On The Siding - Diceroprocta biconica

Cicada On The Siding - Diceroprocta biconica
big Pine Key, Monroe County, Florida, USA
Size: 1 1/2 inches.

Moved

Diceroprocta biconica!
Excellent image - this may well be the only COLOR image of this cicada on the web!

Diceroprocta biconica, The Key's Cicada
Members of this species complex can be found in Cuba and s. Florida!
There are two population groupings on the island of Cuba and a third population group native to the Florida Keys (and extreme tip of the peninsula). There is thought that these populations may indeed represent sister species, however, there is insufficient information available. More detailed studies are needed to further understand this complex.

I had to go back and read up on Diceroprocta spp. - Still sorting distributions, I'm certain this is Diceroprocta biconica, the Keys' Cicada!

Please refer to this paper!
Journal of the N.Y. Entomol. Soc. XLIII June, 1935 (c700ld35a)

Although the pic's are black & white, they are a very close match!

Diceroprocta biconica
Although T. davisi has been recorded in the Florida Keys, I have not personally seen it that far south. Additionally, based on personal communications with others, T. davisi may be sparse in parts of its distribution across the Keys & southern most tip of the state.

Typically, T. davisi does not have strong pruinose markings on the dorsum of the abdomen if at all - in fact, none of the many 100's I have seen or collected through the years possess pruinose markings at all as seen here.

In contrast, Diceroprocta biconica is characterized by a broad pruinose band at the anterior of the abdomen (much like that seen in D. cinctifera) - which the cicada in this pic clearly possesses!

Also note the following in this specimen:
1) Long wings
2) Lack of infuscations along the apical wing veins (heavy pigmentation along the veins)
3) Broad pruinose band at the anterior of the abdomen (a strong characteristic of D. biconica!)
4) Strongly developed pruinose band at the tip of the abdomen, not a trait seen in davisi, but frequently seen in a few other Diceroprocta spp. - incl. D. apache, D. cinctifera, & D. semicincta
5) Locality - Florida Keys, where D. biconica is well recorded and COMMON! (NOTE: There are 2 or more defined Cuban populations/subspecies of D. biconica and they are not identical in appearance to populations occurring in the FL Keys - however, they are very similar!!)
6) The head/eyes do not quite equate or exceed the widest part of the pronotum or mesonotum in this image! (However, it is important to note that in some individuals of Diceroprocta spp. head width can be highly variable in its proportions to the thorax and may exceed those dimensions.)

Tibicen
Probably T. davisi, one of the smallest species in the genus.

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