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Species Thasus neocalifornicus - Giant Mesquite Bug

Giant mesquite bug - Thasus neocalifornicus - male beetle? if so, what type? - Thasus neocalifornicus large beetle  - Thasus neocalifornicus Red Beetle - Thasus neocalifornicus Coreidae - Thasus neocalifornicus Coreidae - Thasus neocalifornicus Mesquite - Thasus neocalifornicus Giant Mesquite Bug - Thasus neocalifornicus (pair) - Thasus neocalifornicus - male - female
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)
Synonyms and other taxonomic changes
T. acutangulus Stal
T. gigas (Klug)
Explanation of Names
Named for its occurrence in the Baja California Region (Brailovsky et al. 1994; see reference below)
1 sp. n. of Mex. (1)
-------- Adult ------ and ---- Immature ------
AZ-TX / Mexico (Baja Californica; Sonora; Chihuahua) - (1),(BG data)
(most records are from Pima, Santa Cruz, and Cochise counties; also known from Maricopa County - Phoenix area)
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.
Dr. James Hogue (Cal State Northridge) pointed out that this genus has been revised (please see references below; HW). T. acutangulus is present only in Mexico, Guatemala, Belize (formerly British Honduras), and Costa Rica. The records from the United States are misidentifications (per Brailovsky, Schaefer, et al. 1994; see reference below - HW)
T. neocalifornicus is the only species of this genus that occurs in the U.S.A.
It is close to T. gigas from Mexico, and T. acutangulus (see distribution notes above).
Print References
Brailovsky, H., C.W. Schaefer, E. Barrera, R.J. Packauskas. 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., and C.W. Schaefer. 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
Excellent photos of nymphs and adults at fireflyforest.
A photo of specimens: USDA/ forestryimages
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.