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Photos of insects and people from the 2024 BugGuide gathering in Idaho July 24-27

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Family Membracidae - Typical Treehoppers

Treehopper - Telamona extrema Smilia sp., But Which? - Smilia camelus Stictopelta - Spissistilus festinus Treehopper - Micrutalis calva - female Treehopper, Heliria? - Heliria Publilia concava - male Atymna helena Treehopper - Telamona stephani
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder Auchenorrhyncha (True Hoppers)
Infraorder Cicadomorpha (Cicadas, Spittlebugs, Leafhoppers, and Treehoppers)
Superfamily Membracoidea (Leafhoppers and Treehoppers)
Family Membracidae (Typical Treehoppers)
Other Common Names
Thorn Bugs
Pronunciation
mem-BRAY-ci-dee
Explanation of Names
Membracidae Rafinesque 1815
from Membracis Fabricius 1775, the type genus
Numbers
~270 spp. in ~60 genera in our area(1), ~3,500 spp. in ~430 genera worldwide, arranged in 9 subfamilies and dozens of tribes(2)(3)
checklists of local faunas:(4)(5)(6)(7) ‒more sources listed in (8)
Overview of our fauna* ‒taxa not yet in the guide; questionable records omitted
Family MEMBRACIDAE
Subfamily CENTROTINAE
Subfamily DARNINAE
Subfamily STEGASPIDINAE
Subfamily MEMBRACINAE
Subfamily SMILIINAE
Not placed to tribe: Antianthe · Tropidarnis
Not yet in the guide:
Antonae Stål 1867 [1 sp., WA‒CA]
Aphetea Fowler 1895 [1 sp., CA]
Ashmeadea Goding 1892 [1 sp., AZ]
Darnis Fabricius 1803 [1 questionable record, CA]
Membracis Fabricius 1775 [2 spp., CA FL]
Scalmophorus Fowler 1894 [1 sp., AZ]
Tumecauda Goding 1930 [1 sp., AZ]
questionable records: Bolbonota Amyot & Serville 1843 [1 sp., ?FL], Notocera Amyot & Serville 1843 [1 sp., ?CO], Trachytalis Fowler 1895 [1 sp., ?CA])
Size
2‒20 mm (most <12 mm)(9)
Identification
pronotum extends back over abdomen and often covers head; gestalt may be humpbacked, thorn-like, with horns, keels &c.

visual guide [needs update]
illustrated checklist of FL spp. in (5)
Food
Most spp. are host-specific and feed on trees and shrubs, some on herbaceous plants
Life Cycle
Eggs overwinter and hatch in the spring. Nymphs drop to the ground. Some spp. exhibit presocial behavior ‒adults often stay near nymphs, tending them. Many have mutualistic relationships with ants
Remarks
Only a few are considered pests; most of the damage is caused by egg-laying