Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

BugGuide is a National Moth Week Partner. How to add your National Moth Week 2021 photos. July 17-25.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Previous events


TaxonomyBrowse
Info
ImagesLinksBooksData

Genus Acanthocephala

What is it? I'm at a loss on how to do searches besides looking at pictures. This is my first post. - Acanthocephala terminalis Unknown Insect - Acanthocephala declivis Wheel Bug nymph - Arilus cristatus - Acanthocephala terminalis Acanthocephala terminalis nymph? - Acanthocephala terminalis Assassin Bug - Acanthocephala terminalis recently molted nymph - Acanthocephala Leaf Footed Insect - Acanthocephala thomasi Acanthocephala species ID, please. - Acanthocephala femorata
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder Heteroptera (True Bugs)
Infraorder Pentatomomorpha
Superfamily Coreoidea (Leatherbugs)
Family Coreidae (Leaf-footed Bugs)
Subfamily Coreinae
Tribe Acanthocephalini
Genus Acanthocephala
Other Common Names
Big-footed or Big-legged Plant Bugs, Spine-headed Bugs
Synonyms and other taxonomic changes
our fauna reviewed in(1) (A. alata is mentioned but not covered there)
Explanation of Names
Acanthocephala LaPorte 1833
Greek akanth- 'thorn/spine' + kephale 'head' (refers to the spine on the front of the head)
Acanthocephala is also a phylum of parasitic worms
Numbers
5 spp. in our area; 27 total(2)
Size
20-30 mm
Identification
Large, dark brown to black; tylus laterally flattened and prominently pointed.
Any Acanthocephala found north of NC-OK is likely to be A. terminalis (although A. declivis seems to be extending its range north).
Note: In states other than AZ, CA, FL, GA, and TX there are only three species to choose from. They may be eliminated easily if compared in this order: A. declivis has a distinctive right-angled hind leg flange and broad pronotum, A. femorata has uniformly red antennae, and A. terminalis has red-tipped antennae.
  
Range
New World, mostly neotropical(2); in our area, e. NA & so. US as follows:
A. alata TX (BG data; no published records?)
A. declivis VA-FL to MO-AR-AZ(1)
A. femorata NC-FL to KS-TX(1)
A. terminalis ON-FL to NE-CO-TX(1)(3)
A. thomasi CA-TX(1)
Habitat
Deciduous forests, fields, etc.
Remarks
our only representative of the New World tribe Acanthocephalini Stål 1870, that contains ~100 spp. in 15 genera(2)
See Also
Leptoglossus (metatibial expansion generally shorter and often wider)
Works Cited
1.Review of Acanthocephala (Hemiptera: Heteroptera: Coreidae) of America north of Mexico with a key to species
McPherson J.E., Packauskas R.J., Sites R.W., Taylor S.J., Bundy C.S., Bradshaw J.D., Mitchell P.L. 2011. Zootaxa 2835: 30-40.
2.Livermore L.J.R., Lemaître V.A., Dolling W.R., Webb M.D. Coreoidea species file online. Version 5.0
3.Checklist of the Hemiptera of Canada and Alaska
Maw, H.E.L., R.G. Foottit, K.G.A. Hamilton and G.G.E. Scudder. 2000. NRC Research Press.