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Subfamily Emesinae - Thread-legged Bugs

Bug - Ghinallelia productilis Gossamer Assasin - Stenolemus lanipes Thread-legged bug from Oakland, CA - Empicoris rubromaculatus Assassin Bug? - Empicoris Metapterini? - Barce Emesaya? - Emesaya Some kind of assassin bug nymph - Stenolemus Empicoris
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 Cimicomorpha
Family Reduviidae (Assassin Bugs)
Subfamily Emesinae (Thread-legged Bugs)
Synonyms and other taxonomic changes
sometimes treated as a separate family (Ploiariidae)(1)
Explanation of Names
Emesinae Amyot & Serville 1843
Numbers
Over 60 spp. in 14 genera north of Mexico(2)(3)
Tribe Emesini:
Emesa (1)
Gardena (2)
Stenolemoides (1)
Stenolemus (4)
Tribe Leistarchini:
Ploiaria (14)
Tribe Metapterini:
Barce (6)
Metapterus (6)
Pseudometapterus (3)
Emesaya (5)
Ghilianella (1)
Pseudometyapterus (3)
Ischnonyctes (1)
Tribe Ploiariolini
Emesopsis (1)
Empicoris (14)
Size
3-40 mm, usually under 10mm(4)(5)
Identification
Unlike walking-sticks and some dipterans they mimic, the Emesinae walk on the rear four legs -- the front legs are modified for grasping prey(3)
McAtee & Malloch 1925 revision of our fauna(6) has retained its importance
Habitat
Barns, cellars and old buildings; beneath loose bark, in tufts of grass or brush piles; largely nocturnal, some live in spider webs(1)(7)(4)(5)
Food
other insects or spiders; some steal prey from spider webs(4)(7)(3).
Works Cited
1.A Field Guide to Insects
Richard E. White, Donald J. Borror, Roger Tory Peterson. 1998. Houghton Mifflin Co.
2.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.
3.A monograph of the Emesinae (Reduviidae, Hemiptera)
Pedro W. Wygodzinsky. 1966. New York : [American Museum of Natural History].
4.Borror and DeLong's Introduction to the Study of Insects
Norman F. Johnson, Charles A. Triplehorn. 2004. Brooks Cole.
5.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.
6.Revision of the American bugs of the reduviid subfamily Ploiariinae
W.L. McAtee & J.R. Malloch. 1925. Proceedings of the United States National Museum, 67 (1): 1-135.
7.Kaufman Field Guide to Insects of North America
Eric Eaton, Kenn Kaufman. 2006. Houghton Mifflin.