Fork-tailed Bush Katydid
( Scudderia furcata )


2013-0505-01100112-ORT00343-Scudderia_furcata[1134h36s,F,N,plant]{EXD}-G.jpg

PHOTO COMMENT

IDENTIFICATION
Identification:Scudderia furcata
(Brunner von Wattenwyl ,1878 )
Common Name:Fork-tailed Bush Katydid
Life Stage:(N) nymph/naiad

PHYLOGENY

Phylum:Arthropoda
Class:Insecta
Superorder:Polyneoptera
Order:Orthoptera
Suborder:Ensifera
Family:Tettigoniidae
Subfamily:Phaneropterinae
Genus:Scudderia
Taxon Code:ORT00343
ITIS/TSN:102275

LOCATION DETAILS
Location Name
Gardens at Lake Merritt, Lakeside Park, 666 Bellevue, Oakland
County:Alameda County
ECI Site#:CA01100110

RECOGNITION
Description
UCIPM: Katydids resemble grasshoppers but have long antennae. Nymphs are wingless and have black and white banded antennae. Females of the forktailed katydid lay gray, oval, flat eggs in leaves where they have been feeding. Nymphs appear in April and May and take 2 to 3 months to mature. Angularwinged katydids are larger than forktailed katydids, have broader wings and have a humpback appearance both as nymphs and as adults. Females lay their gray, oval eggs in two overlapping rows on twigs and leaves. Katydids have only one generation a year.
Body Length
40 mm.
Child Taxa
Scudderia furcata furcata Brunner, 1878

BIOLOGY
Importance
UCIPM: Of the two species feeding on citrus, only the forktailed katydid causes economic damage. This species feeds on young fruit at petal fall with subsequent buildup of scar tissue and distortion of expanding fruit. Katydids take a single bite from a fruit and then move to another feeding site on the same or nearby fruit. In this way, a few katydids can damage a large quantity of fruit in a short time. They also eat holes in leaves and maturing fruit, creating injury that resembles damage by citrus cutworm. The angularwinged katydid is less abundant than the forktailed katydid and feeds only on leaves. (http://www.ipm.ucdavis.edu/PMG/r107300411.html)

CREDITS
Photographer
Eddie Dunbar
Insect Sciences Museum of California

References
Species Scudderia furcata - Fork-tailed Bush Katydid. (http://bugguide.net/node/view/18847). Accessed March 12, 2016. .
ITIS.
UC Management Guidelines for Katydids on Citrus


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