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Family Cydnidae - Burrowing Bugs

A very big Burrowing Bug - Dallasiellus burrowing bug - Microporus Cyrtomenus ciliatus Burrowing Bug - Amnestus ., - Sehirus cinctus Pangaeus bilineatus (?) - Dallasiellus
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 Pentatomoidea
Family Cydnidae (Burrowing Bugs)
Numbers
43 spp. in 13 genera of 4 subfamilies (11 genera in Cydninae) in our area(1), ~770 spp. in 120 genera worldwide, arranged into 5-7 subfamilies(2)
Overview of our fauna (* –taxa not yet in the guide):
Family Cydnidae
Subfamily Amnestinae Amnestus
Subfamily Cydninae
Subfamily Sehirinae Sehirus
Size
3-8 mm (NA)(1), 2-20 mm globally(2)
Identification
body usually ovoid, heavily sclerotized, dark, legs often spiny(3)
Comprehensive treatment of the New World fauna in(4), of the ne. US fauna in(5)
Key to FL spp. in(6)
Range
worldwide and throughout NA
Habitat
most are fossorial (=diggers), Sehirus mostly on vegetation(5)
Food
take liquid from the phloem vessels, unlike other heteropterans(7) and often feed on roots(2); members of the Sehirinae (and two extralimital subfamilies) feed up on plants(3)
Remarks
adults come to lights, sometimes in large numbers(3)
Print References
(8)
Internet References
Works Cited
1.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.
2.Biodiversity of the Heteroptera
Henry T.J. 2009. In: Foottit R.G., Adler P.H., eds. Insect biodiversity: Science and society. Oxford: Wiley-Blackwell: 223-263.
3.Australian Faunal Directory
4.Cydnidae of the Western Hemisphere
Froeschner, R. C. 1960. Proceedings of the United States National Museum, 111(3430): 337-680, 13 plates.
5.The Pentatomoidea (Hemiptera) of Northeastern North America
J.E. McPherson. 1982. Southern Illinois University Press.
6.Literature-based key to Florida "burrowing bugs" (Heteroptera: Cydnidae)
Smith R., Holmes A. 2002. ENY 4161/6166 Insect Classification Exercise.
7.Bugs of the World
George C. McGavin. 1999. Blandford Press.
8.Burrower bugs of the Old World – a catalogue (Hemiptera: Heteroptera: Cydnidae)
Lis J.A. 1999. Genus 10: 165-249.