Brood I Magicicada periodical cicadas continue to emerge in VA, WA and TN. Magicicada stragglers belonging to other broods, continue to emerge as well.
Neocicada hieroglyphica are around as well, particularly in Florida [link goes to image].
Example of a Neocicada hieroglyphica.
Cicadas belonging to the genus Cacama (Cactus Dodgers), including the Cacama valvata are emerging in south-western states like New Mexico and Arizona [link goes to image].
Example Cacama valvata.
Cicadas belonging to the genus Tibicen are emerging in warmer areas of the United States. Joe Green found a Tibicen tibicen (possibly Tibicen tibicen australis [see Insect Singers site for song and description]) in Florida. Tibicen superbus [image] are emerging in Southern states as well.
H is for Hieroglyphic Cicada. The Neocicada hieroglyphica a.k.a. Hieroglyphic Cicada is found in the south-eastern United States. It’s active in the late spring and early summer. There are multiple subspecies of the Hieroglyphic Cicada including the Neocicada hieroglyphica hieroglyphica and Neocicada hieroglyphica johannis, according to InsectSingers.com.
Haemolymph is a blood-like fluid found in some arthropods like cicadas. Cicadas use haemolymph to inflate their wings when they eclose (leave their nymph form and become adults), as well as to transport nutrients throughout the cicada’s body.
Harvest Fly is common name for Tibicen cicadas, presumably in areas where harvests take place. I’ve heard tales that the harvest is supposed to take place a month after the last Tibicen sings.
Temperature is a factor in when cicadas will emerge from the earth and enter the adult phase of their lives. Cicadas like warm weather (as do most insects) and so once the soil & air reaches a temperature that pleases the cicadas, they will likely emerge. There are other factors of course, but hotter weather usually means cicadas will emerge sooner than later.
The spring and summer of 2010 has been HOTTER than usual in the mid-Atlantic area of the United States, and so species of cicadas are emerging earlier than expected. Since June first, I’ve witnessed, 32 days above 80F(27C), and 11 days above 90F(32C), in New Jersey, which is warmer than usual.
Annual cicada species like the Tibicen species and Neocicada hieroglyphica have been emerging sooner than expected. Cicadas.info has reports of Neocicada hieroglyphica, Tibicen lyricen and T. tibicen (T. chloromera) emerging sooner than expected. I’ve been hearing T. linnei in New Jersey since June.
Massachusetts Cicadas is reporting a slow start for Tibicen. Massachusetts is a New England state, and is typically cooler than Mid-Atlantic states like New Jersey, but that might not be the only factor at work here. It will be interesting to see how this plays out.
Temperature will also effect when a cicada will sing: if it’s too cold cicadas won’t sing, and if it’s too hot the poor over-heated cicadas won’t sing. This is why you won’t hear some annual cicadas singing on a cool day, or when it’s near 100F(38C). This depends on the species too; some species like it HOT, and some like it cool.
I’ve also heard that temperature can effect the frequency of a cicada’s song, however there is not a formula that allows to you determine the temperature based on the pauses in a cicada’s call like there is for crickets.
Joe Green wrote us to let us know that he heard the first Neocicada hieroglyphica of the year.
Just wanted to let you all know I heard the first male Neocicada hieroglyphica calling from a oak tree today at Chico’s World Headquarters campus here in Fort Myers, Florida. I heard the warm-up pre call at first that lead into to the full blown chorus call for 6 repeated calls before he stopped. It was 2:40 pm EST, in the afternoon with the temperature reaching 80 degrees on this day. I have yet to hear one at Dusk here at the house but I’ll listen from now on with the start of the season here in south Florida and record all my data for this year’s research. I’ll keep in touch with all of you as the year proceeds.