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Genus Jalysus

Stilt Bug - Posterior Dorsal - Jalysus stilt bug-Jalysus - Jalysus Stilt Bug - Jalysus Stilt Bug - Jalysus Jalysus sp. - Jalysus help with ID - Jalysus stilt bug - Jalysus stilt bug - Jalysus
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 Lygaeoidea
Family Berytidae (Stilt Bugs)
Subfamily Metacanthinae
Genus Jalysus
Explanation of Names
Jalysus Stål 1862
4 spp. in our area(1)
7-9 mm(1)
Medium-sized brownish stilt bug found on flowers and other vegetation. The most commonly encountered berytids in our area. Species identification requires close examination of characters visible only under high magnification(2). Several characteristics of the genus:
medium-sized (7-9 mm)
head without projecting tylus
fourth segment of antenna longer than head
abdomen impunctate (not marked by punctures) underneath
groove (sulcus) between front coxae
spine projects from its thoracic scent gland
scent gland channel (on projecting spine) with groove running along one side, not twisted
Some images showing these characters:
J. wickhami is widespread, J. spinosus is eastern (both are common), three more spp. in sw. US(2)
known to feed on moth eggs, e.g., those of Heliothis virescens (Fact sheet)
Works Cited
1.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.
2.How to Know the True Bugs
Slater, James A., and Baranowski, Richard M. 1978. Wm. C. Brown Company.