Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species Thasus neocalifornicus - Giant Mesquite Bug

Identify this south eastern Arizona beetle please. - Thasus neocalifornicus mystery bug - Thasus neocalifornicus Red Beetle - Thasus neocalifornicus On white garden wall.. - Thasus neocalifornicus Giant Mesquite Bug? - Thasus neocalifornicus Thasus - Thasus neocalifornicus Thasus neocalifornicus Insect Species - Thasus neocalifornicus
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 Nematopini
Genus Thasus
Species neocalifornicus (Giant Mesquite Bug)
Explanation of Names
Thasus neocalifornicus Brailovsky and Barrera in Brailovsky, Schaefer, Barrera and Packauskas, 1995
1 sp. n. of Mex. (1)
Adult & nymph
sw. US (CA-TX) & Mexico (Baja California, Sonora, Chihuahua)(1)(BG data)
(most records from Pima, Santa Cruz, and Cochise counties; also known from Maricopa Co.)
The green pods of Mesquite (Prosopis spp.), notably the non-native P. velutina (Chilean, Velvet Mesquite) and the native P. glandulosa (Honey Mesquite)
Life Cycle
Eggs are posited in chains of ~12 under stems, or loose bark, of host plants.
T. acutangulus is a Mesoamerican sp. (Mexico to Costa Rica) whose US records were based on misidentifications (Brailovsky et al. 1994)
T. neocalifornicus is the only representative of the genus north of Mexico; it's close to T. gigas (Mexico) and T. acutangulus
Print References
Brailovsky H., Schaefer C.W., Barrera E., Packauskas R.J. (1994; published 1995) A revision of the genus Thasus (Hemiptera: Coreidae: Coreinae: Nematopodini). Journal of the New York Entomological Society 102: 318-343.
Forbes G., Schaefer C.W. (2003) Further notes on the genus Thasus (Hemiptera: Heteroptera: Coreidae). Journal of the New York Entomological Society 111: 235- 241.
Jones W.A. (1993) New host and habitat associations for some Arizona Pentatomoidea and Coreidae. Southwestern Entomologist (Suppl.) 16: 1-29.
Internet References
Works Cited
1.Catalog of the Heteroptera, or True Bugs of Canada and the Continental United States
Thomas J. Henry, Richard C. Froeschner. 1988. Brill Academic Publishers.